An athlete from your school's cross country team goes for a training
run. she runs 3.6 km east, 4.5 km north, then another 2.4 km east. at the
end of her run, how far is the athlete from her starting position?
(remember, you can rearrange the vectors to make a right triangle and
use pythagorean theorem).
2.4 km
4.5 km
- 3.6 km

In a lab, while performing the experiment, one question that I will ask will be - How potential energy can be converted into thermal energy? The answer for tat will be by seeing and understanding the sample response in the experiment.

Potential energy is released from them when they are divided. A particle's potential energy increases with distance. As they gain speed, their kinetic energy increases. The thermal energy of an object is the sum of the kinetic and potential energies of all the particles.

Energy from heat transfer as potential and kinetic energy

This occurs as a result of the attractive forces they generate for one another. Additionally, the particles are forced apart by a rise in body temperature. As a result, as their potential energy rises, so do the forces of attraction between them.

To know more about Thermal energy and Potential energy visit:

https://brainly.com/question/12807194

#SPJ9

Answer:

It is false

Explanation:

I am not sure behind the science on this, but if I had to guess I would chose false. This is because preventing certain things from happening in the long run can at least do a good job of reducing the chance of something happening, correct? Don’t take my answer as correct right away, do a quick search up on the internet and you should be able to find what your looking for with the science behind it! You got it!

For the reason that the green car's initial velocity and acceleration are equal in both instances, it follows that you could use the time the pink automobile wishes to attain those two factors to write two equations with unknowns, the inexperienced vehicle's.

V0=-14.56m/s

a=-4.96m/s²

A red automobile and an inexperienced car flow in the direction of each different in adjacent lanes and parallel to an x-axis.

At time t = zero, the purple vehicle is at

XR = 0 and the green vehicle is at

Xg = 216 m.

If the red vehicle has a constant velocity of 27.0 km/h, the motors bypass every difference at x = 44.2 m. then again, if the red automobile has a steady velocity of fifty-four. 0 km/h, they skip every difference at

x = 76.7 m.

Learn more about velocity here

https://brainly.com/question/25749514

#SPJ9

The speed of a projectile when it reaches its maximum height is one-half its speed when it is at half its maximum height. The initial angle of the projectile is 67.8°.

The motion from zero to maximum height is :

Vyi = √2gh

Now the motion from zero to half of the maximum height is :

Vyh = √gh

At maximum height, the speed is Vx = √Vx^2+Vyh^2/2

Vx =√Vx^2+gh/2

by simplifying,

Vx = √gh/3

To find the angle of projection

∅ = tan^-1(Vyi/Vx) = √2gh/√gh/3

∅ = 67.8°

If you need to learn more about angle of projection, click here

https://brainly.com/question/20459093?referrer=searchResults

#SPJ4

The approximate magnitude of the gravitational force between Ganymede and Jupiter is 16.35 x 10^21 N.

According to Newton’s Law of Gravitation, the gravitational force between two bodies is directly proportional to the masses of the two objects and is inversely proportional to the square of the distance between them.

The above statement can be represented by the following equation:

F = Gx (m1)x (m2)/r^2

Here G = Universal Gravitational Constant = 6.67 x 10^-11 N m^2/kg^2

m1 and m2 are the masses of two bodies

r is the distance between the bodies

Putting m1= Mass of Jupiter= 1.89 x 10^27 kg

m2 =Mass of Ganymede 1.48 x 10^23 kg

r = Distance between Jupiter and Ganymede = 1.07 x 10^9 meters

F = 6.67 x 10^-11 x 1.89 x 10^27 x 1.48 x 10^23/(1.07 x 10^9)^2

On solving the above equation F comes out to be 16.35 x 10^21 N.

Thus, the approximate magnitude of the gravitational force between Ganymede and Jupiter is 16.35 x 10^21 N.

To know more about "Law of Gravitation", refer to the link given below:

brainly.com/question/24190879?referrer=searchResults

#SPJ4

Answer:

speed =distance /time

10/4=2.5 m/s

As the universe expands the temperature decreases and the wavelengths of photons increases.

As the universe expands, the distance between crests of the wave of light also expand, causing the wavelength to increase.

Light with a longer wavelength is redder, so light appears redshifted because of the expansion of the universe.

Also, the universe expands as a result of decrease in the temperature of surrounding air molecules according to Hubble.

Thus, we can conclude that,  as the universe expands the temperature decreases and the wavelengths of photons increases.

Learn more about expansion of universe here: https://brainly.com/question/3890321

#SPJ1

The tension vector's vertical components must add up to the weight, hence the vectors along the rope will be extremely enormous.

In physics, tension is defined as the pulling force transmitted axially by a string, cable, chain, or other similar object, or by each end of a rod, truss member, or other comparable three-dimensional object. Tension can also be defined as the action-reaction pair of forces acting at each end of the aforementioned elements.

A force throughout a medium's length is known as tension, particularly a force carried by a flexible medium like a rope or cable. An action-reaction pair of forces acting at each end of the mentioned elements is what is referred to as tension.

To learn more about tension from the given link:

brainly.com/question/15880959

#SPJ4

The most important advantage of observing living things in a closed setting is to observe the causes and effects of a given variable.

The expression 'cause and effect in experimentation' refers to which are the dependent variables whose changes depend on the independent variable, which only can be tested in a closed system during experimental procedures.

In conclusion, the most important advantage of observing living things in a closed setting is to observe the causes and effects of a given variable.

Learn more about cause-effect experimentation here:

https://brainly.com/question/28463206

#SPJ1

An interior designer is choosing a paint color for a room and has two samples that are both blue, however one blue is described as brighter than the other. Both would have the same wavelength but would differ due to the amplitude property of light.

The amplitude plays an important part in differentiating the same colors of the same wavelength. It tells us about the brightness or intensity of a certain light wave as compared to others of the same wavelength. So, whenever two same colors look different due to brightness, it is due to the amplitude property of the light.

If you need to learn more about wavelength of light, click herebrainly.com/question/28198302?referrer=searchResults

#SPJ4

Answer: the air exerts a force on the rudders, and the rudders will exert a force of equal magnitude and opposite direction on the boat causing the boat to start accelerating

Explanation:

Yes, I will be gravitationally attracted to the person who has twice as much weight sitting next to me. The gravitational attraction would be equal.

Gravitational pull is the force that everybody on Earth experiences. This force tends to pull a person to the center of the Earth.

The force of gravity is dependent on the masses that each object has. In the case above, the gravitational attraction between you and the person next to you with twice as much weight will be the same because the gravitational pull will be dependent on the product of the two masses of you and the other person. Hence, you are being attracted to that person with the same gravitational force with which he is being attracted to you.

To learn more about gravitationally, click here:

https://brainly.com/question/15090289

#SPJ4

200N force is needed to stop a 100-kg football player if she negatively accelerates (decelerates) at 20 m/s2

we have given in the statement

mass=100kg

acc= -20m/s^2

F=?

from newton's formula, we will find force

F=ma

F=100kg×20m/s^2

F=200N

To know more about  force visit : https://brainly.com/question/1675020

#SPJ1

Answer:

Distance

Explanation:

The standard drink measurement should contain 14 grams of pure alcohol in United States of America.

The standard drink measurement should contain 14 grams of pure alcohol in United States of America.

The standard drink measurement has a wide range of use in today's life because with the help of this an alcohol can be balanced in a consistent way.

So we can also conclude the standard drink measurement should contain 14 grams of pure alcohol in United States of America.

Learn more about Alcohol here: https://brainly.com/question/947751

#SPJ1

The standard drink measurement should contain 14 grams of pure alcohol in United States of America.

The standard drink measurement should contain 14 grams of pure alcohol in United States of America. The standard drink measurement has a wide range of use in today's life because with the help of this an alcohol can be balanced in a consistent way. In the United States, one "standard" drink contains about 14 grams of pure alcohol which is usually about 5% alcohol. We know that 5 ounces of wine, has about 12% alcohol, 1.5 ounces of distilled spirits which is 40% alcohol.

So we can also conclude the standard drink measurement should contain 14 grams of pure alcohol in United States of America.

Learn more about Alcohol here: brainly.com/question/947751

#SPJ1

Answer:

b one is correct........I wish u give me mark as brainlliest

The ejected electrons would have greater kinetic energy if the wavelength of light is decreased when Photons are shone on a piece of metal and one electron is ejected for each absorbed photon.

This is referred to as the type of energy which is possessed by a body by virtue of its motion and it has an inverse relationship with the  wavelength of light.

This therefore means that as the wavelength of light is decreased, the kinetic energy of the ejected electrons will increase and vice versa which is therefore the reason why it was chosen as the most appropriate choice.

Read more about Kinetic energy here https://brainly.com/question/8101588

#SPJ1

The acceleration of the car is found to be 36.8m/s²

The formula One car stops so, the final speed of the car (v) = 0 and the initial speed of the car is given 90m/s.

Distance covered by car ( s) = 110m.

Now we calculate the acceleration of the car by third equation of motion,

v²-u² = 2as

0-902 = 2a ×110

a = 902/2×110 = 36.8m/s².

Formula one cars can reach 60 mph from 0 in about 2.6 seconds. This may seem slow given their highest speed, but because much of their speed comes from aerodynamics, which performs better the faster the car is moving, they are unable to start with all of their power.

The rate of change of velocity with respect to time is known as acceleration. It’s SI unit is m/s².It is a vector quantity. Acceleration can be found out by the help of first and third equation of motion which are F= ma and v ²=u² + 2as.

To learn more about equations of motion, refer this link.

https://brainly.com/question/8898885

#SPJ4

The ball rises to a height of s = ( [tex]V_{1}[/tex] tan θ )² / 2g m

[tex]V_{y}[/tex] / [tex]V_{x}[/tex] = tan θ

Here [tex]V_{y}[/tex] is the vertical velocity and [tex]V_{x}[/tex] is the horizontal velocity which is the velocity of train.

[tex]V_{y}[/tex] = [tex]V_{1}[/tex] tan θ ( θ is the angle of projection )

We know that,

a = [tex]V_{y}[/tex] / t

t = [tex]V_{y}[/tex] / a

where,

a = Acceleration due to gravity = g

t = Time

s = ut + 1 / 2 at²

s = 1 / 2 ( g ) ( [tex]V_{1}[/tex] tan θ / g )²

s = ( [tex]V_{1}[/tex] tan θ )² / 2g m

The height of a projectile is the distance of thrown object from the point where it is thrown vertically.

Therefore, the ball rises to a height of s = ( [tex]V_{1}[/tex] tan θ )² / 2g m

To know more about height of a projectile

https://brainly.com/question/25928005

#SPJ4

The velocity of particle when x = -2m is 4.7 m/s.

Acceleration of a particle, a = k ( 1 - [tex]e^{-x}[/tex])

Velocity of the particle, v = +9 when x = -3m

Velocity of the particle, v = 0 when x = 0

We konw that acceleration is:

[tex]a = \frac{dv}{dt}[/tex]

[tex]a= \frac{dx}{dt}.\frac{dv}{dx}[/tex]

[tex]a=v[\frac{dv}{dx}][/tex]

Now,

v dv = a dv .........(i)

Putting a =  k ( 1 - [tex]e^{-x}[/tex]) in (i), we get,

[tex]\frac{vdv}{dx}=k (1-e^{-x} )[/tex]

[tex]\int\limits^9_0 {v} \, dv = k\int\limits^3 _0 {(1-e^{-x}) } \, dx[/tex]

[tex]\frac{81}{2} = k(-3 + e^{3}-e^{0} )[/tex]

[tex]\frac{81}{2}=k(-9 + e^{3})[/tex]

[tex]\frac{81}{2}= k[/tex] × [tex]16.0855[/tex]

[tex]k = 2.52[/tex]

Again,

[tex]\int\limits^v_0 {v} \, dx=k\int\limits^2_0 {(1-e^{-x)} } \, dx[/tex]

[tex]\frac{v^{2} }{2}= 2.52 [ (-2 +e^{2}-(0+e^{0})[/tex]

[tex]v= 4.70 m/s[/tex]

Therefore, the velocity of particle when x = -2m is 4.7 m/s.

Read more about Acceleration:

https://brainly.com/question/14640605

#SPJ4

The acceleration of a particle is defined by the relation a= k (1 - [tex]e^{-x}[/tex]), where k is a constant. The velocity of the particle v =+9 m/s when x = -3m and it comes to rest at the origin. Obtaining velocity from a position-dependent acceleration by integration. Also, determine the velocity of the particle when x = -2 m.

Geographic changes that result from plate tectonic processes must cause great environmental changes. For example, when continents drift into new latitudes, climatic patterns in both marine and terrestrial environments will be affected.

Answer:

Metal appears cool on touching because heat flows from body( at higher temperature) to iron( at lower temperature)

The given device is a power recipient, since the value of power calculated using Ohm's law is positive.

We know that,

P = V I

where,

P = Power

V = Voltage

I = Current

Given that,

V = 10 V

I = 1 A ( Since it is flowing from +ve to -ve )

P = 10 * 1

P = 10 W

Since the power is positive, the device is a power recipient.

Ohm's law states that the voltage difference between two points in a conductor is directly proportional to the current flowing from one point to another.

Therefore, the device is a power recipient

To know more about Ohm's law

https://brainly.com/question/1247379

#SPJ4

Free body diagrams are used in mechanics problems to illustrate forces and moments applied to a body and to compute reactions.

The relative strength and direction of all forces operating on an object in a specific circumstance can be depicted using free body diagrams (FBDs), which are helpful tools. The careful creation of a free-body diagram is a prerequisite for the analysis and description of the majority of physical processes. In a free body diagram, the size of the arrow represents the force's magnitude, while the direction of the arrow represents the way it acts.

These diagrams are widely used to compute internal forces within a structure, as well as to determine the loading of certain structural components.

To get more information about Free Body Diagram :

https://brainly.com/question/24087893

#SPJ1

Zero. Because electric field inside a charged conductor is always zero.

A region of space surrounding an electrically charged particle or object known as an electric field is one in which an electric charge would experience force.

A vector quantity called an electric field can be represented by arrows pointing in the direction of or away from charges.

Volts per metre (V/m) is the electrical field’s SI unit.

The Newton’s per coulomb unit is the same as this one. These are derived units in which Newton is a force unit and Coulomb is a charge unit.

To know more about electric field visit:

https://brainly.com/question/15800304

#SPJ4

The mass of the object remains the same but the weight decreases as the object move upward.

Because mass is the amount of matter in an item and does not change with gravity, mass remains constant. If the amount of matter didn't change, it would stay the same. We can observe that this innate quality, mass, never changes and remains the same wherever we place it in the universe.

According to a new high-resolution map, a person can weigh differently depending on where they are on Earth due to changes in the planet's gravity. Many people believe that gravity is constant over the entire planet, however, scientists have shown that gravity varies because the planet is not perfectly spherical or uniformly dense.

Learn more about mass and weight here:

https://brainly.com/question/28122305?referrer=searchResults

#SPJ4

Light with a frequency of 7. 30 x 10^14 hz lies in the violet region of the visible spectrum. The wavelength of this frequency of light is 4×10^-7 m.

As we know

c =  λf

where

c is the speed of light,  λ is wavelength and f is frequency.

Given:

c = 3×10^8

f=7.3×10^14

Putting the values

λ = c/f

λ = 3×10^8/7.3×10^14

λ =  4×10^-7 m.

The wavelength is 4×10^-7 m.

If you need to learn more about wavelength of light, click here

https://brainly.com/question/19067399?referrer=searchResults

#SPJ4

The mass of the Other planet is 2.81 x 10²⁶ m for the given parameters.

In astronomy, the term "planetary mass" refers to the measurement of an object's mass that resembles a planet. The mass of the Sun, solar mass (M), is used as the unit of mass in the astronomical system of units, which is frequently used to estimate the sizes of planets in the Solar System.

Given,

The radius of the other planet is 7.40 x 10(7) meters.

String mass is M=0.028kg.

The string's length is L=4m.

Time (Tp) = 0.0605 seconds on other planets.

Te is the same as 0.0320 seconds.

Locating lead on Earth should be the first step.

This is the equation for linear mass density:

μ = M/L = 0.028/4 = 0.007 Kg/m

In this case, the wave's speed is given by the equation Ve = L/t = 4/0.032 = 125 m/s.

The formula produces the tension of the spring (Fe);

Fe = (Ve)2 = 0.007 x 125 = 0.87 N

The findings of applying Newton's second rule of motion to this earth lead are as follows:

0 if Fy = Fe-Wl.

Fe - W(l) = 0, which leads to Fe = W. (l)

We know that Weight(W) = Mg.

Me = M(l)g, so Fe.

Where M(l) is the mass of the lead, and g is the acceleration brought on by gravity on earth, which is 9.81.

As a consequence, M(l) = Fe/g = 0.875/9.81 = 0.089kg.

Use the same method to calculate the lead on the second planet;

The linear density of a material is a property that doesn't change:

μ = 0.007 Kg/m

In this case, the wave's velocity is given by the equation Vp = L/t = 4/0.0605 = 66.11 m/s.

The formula produces the tension of the spring (Fp);

Fp = (Vp)2, which equals 30.59 N or 0.007 x 66.112 N.

The findings of applying Newton's second rule of motion to this earth lead are as follows:

Fy = Fp – Wl = 0

As a consequence, Fe - W(l) = 0 and Fp = W. (l)

We know that weight(W) equals mass (Mg) (p)

Consequently, Fp = M(l)g (p)

where M(l) is the mass of the lead and g(p) is the acceleration brought on by the gravity of the other planet.

As a consequence, gp = Fp/M(l) = 30.59/0.089 = 343.70 m/s2.

The planet's acceleration may be calculated using the gravity equation using the formula g = (GM)/r2.

As M is the subject, we have;

(gr²)/G = M

Gravitational constant G has a value of 6.6742 x 10(-11) Nm2/kg2.

M is the planet mass.

the planet's radius r

Thus;

M = [343.70 x (7.4 x 10^(7))²] / 6.6742 x 10^(-11)

Mass = 2.81 x 10^(26)m

You are exploring a newly discovered planet. The radius of the planet is 7.20 × 107 m. You suspend a lead weight from the lower end of a light string that is 4.00 m long and has mass 0.0280 kg. You measure that it takes 0.0685 s for a transverse pulse to travel from the lower end to the upper end of the string. On earth, for the same string and lead weight, it takes 0.0370 s for a transverse pulse to travel the length of the string. The weight of the string is small enough that its effect on the tension in the string can be neglected.

Part A

Assuming that the mass of the planet is distributed with spherical symmetry, what is its mass?

Express your answer with the appropriate units.

To learn more about mass of the planet from given link

https://brainly.com/question/15071388

#SPJ4