A toy helicopter flies forward with a force of 15 N into an oncoming wind of 10 N. The force of gravity pulls the helicopter down with a
force of 5 N, but the propeller is providing an upward force of 10 N.
Which of the following accurately describes the helicopter's force?
(1 point)
The toy helicopter is flying forward with a force of 15 N and upward with a force of 10 N.
O The toy helicopter is flying forward with a force of 10 N and upward with a force of 5 N.
O The toy helicopter is flying forward with a force of 15 N.
O The toy helicopter is flying forward with a force of 5 N and upward with a force of 5 N.

The given statement is false. All veterinarians require a license to practice medicine.

The study of animals is called veterinary science. In veterinary medicine, the complete care of animals takes place. All the medicine's complete care and protection are given to the animals.

For veterinary science the medical certificates and training required. Proper training and internships are given to the doctors to treat the animals. Without proper treatment it is not possible to treat animals.

Therefore, The given statement is false. All veterinarians require a license to practice medicine.

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The tension in the high wire strung between two buildings due to weight of Arlene is equal to 2879 newton.

A free body diagram or known as FBD is a diagrammatic representation of all the forces acting on the body at the moment without taking into consideration the surrounding of the object.

Tension is a vector quantity which is a manifestation of force in string or wire a tension is always a pulling force.

Given:

Mass of the lady = 51 kg

Acceleration due to gravity= 9.8 u

Distance between the two buildings= 13m

The given situation is an example of balance force in which the sin component of the tension in the high wire is balancing the weight of the lady

Weight of the lady = m × g

Where,

T is tension in the high wire

m the mass of the lady

g is acceleration due to gravity

Weight of the lady = 51 × 9.8

Weight of the lady = 499.8

According to the question-

T × sin 10° = m × g

T × 0.1736 = 499.8×9.8

T = 2879 newton

Therefore, The tension in the high wire strung between two buildings due to weight of Arlene is equal to 2879 newton.

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Three objects are connected by light threads. The object weighing 5.00 kg and the object weighing 4.00 kg are connected by a string.

acceleration: the rate at which the speed and direction of a moving object vary over time. A point or object going straight ahead is accelerated when it accelerates or decelerates. The pulling force transmitted axially by a string, cable, chain, or other similar one-dimensional continuous object, or by each end of a rod, or another similar three-dimensional object, is referred to as tension.  The action-reaction pair of forces acting at the ends of the aforementioned elements can also be used to describe tension.

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Answer:

Messages are sent through a variety of : Messages

The speed of 36- year-old South African Mzwakhe Khanyile who ran 100.0 miles in 17 hours and 30 minutes is 5.714 miles/hr.

Speed is defined as the rate of change of distance travelled with respect to time. Mathematically -

s = Δd/Δt

Given in the question is a 36- year-old South African Mzwakhe Khanyile who ran 100.0 miles in 17 hours and 30 minutes. From this we can write-

Distance [d] = 100 miles

Time [t] = 17.5 hours

Mzwakhe Khanyile started running from d = 0 miles at time t = 0 hr.

The speed of Mzwakhe Khanyile will be -

s = Δd/Δt

s = (100 - 0)/(17.5 - 0)

s = 100/17.5

s = 5.714 miles/hr

Therefore, the speed of 36- year-old South African Mzwakhe Khanyile who ran 100.0 miles in 17 hours and 30 minutes is 5.714 miles/hr.

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Writing in an online journal is different from writing in a paper one in the following way: it is easier to communicate online (option B).

A journal is a newspaper or magazine dealing with a particular subject.

A journal is an efficient medium to communicate the findings or results of an investigation to the public.

However, a journal can be virtual (online) or paper (hard copy). In this 21st century, it is easier to communicate to the masses online because more audience will be captured.

Therefore, writing in an online journal is different from writing in a paper one in the following way: it is easier to communicate online.

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The vector arrow representing an acceleration of magnitude 3 m/s² and different from vector arrow representing a negative acceleration of magnitude 3 m/s² so they are perpendicular forming a 90-degree angle between each other. Hence, option C is correct.

A vector has both magnitude and direction. It is frequently depicted as an arrow with a length proportionate to the magnitude and a direction matching the magnitude of the quantity. A vector lacks position, but possesses magnitude and direction. In other words, if a vector is shifted parallel to itself, its shape remains unchanged as long as its length remains constant.

According to the question,

The acceleration of magnitude 3 m/s² and different form the vector arrow representing a negative acceleration of magnitude 3 m/s².

Hence, they are perpendicular, forming a 90-degree angle between each other.

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Because gravity pulls it towards the ground and makes the distance it can cover in one second decrease. Or you can say Due to symmetry in the motion.

Hope this helps, please give me brainliest if I'm correct. :)

The speed of an object in the air begins to decrease after it is thrown because the force of gravity makes it accelerate in a downward direction.

There are a lot of pushes and pulls in the cosmos. Even if it's just the ground, we are constantly pulling or pushing something. The strong force, the weak force, the electromagnetic force, and the gravitational force are the only truly fundamental forces in physics from which everything else is generated.

Any pair of mass-containing objects will gravitationally pull toward one another. The gravitational force is referred to as attractive because it continually tries to pull masses together rather than push them apart. In truth, you and everything else in the universe is being pulled in different directions. It is known as Newton's Universal Law of Gravitation.

So, when the object is thrown straight up into the air with its initial speed gravity starts acting due to which its speed will slow down after some time, and then it will come back down on the surface.

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Malcolm's mother has schizophrenia, as does his cousin. Malcolm fears he has inherited the "schizophrenic gene" and will develop schizophrenia. Genetic factors create a predisposition or likelihood-not a certainty-that certain behaviors or disorders will develop.

Schizophrenia is a severe mental illness that causes its victims to perceive reality in peculiar ways. Schizophrenia can result in severely illogical thinking and behavior, incapacitating hallucinations, and delusions that make it difficult to carry out daily chores.

Even though there is no known cure for schizophrenia, it is controllable and controlled with medication and behavioral therapy, especially when it is identified and treated early.

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Answer:

They can be hunted, captured, and taken anytime in the United States without a permit.

Explanation:

Pigeons are not considered game birds.

Many years before newton wrote this law, of motion stated the same idea as the principal of inertia.

Newton's first law states that if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.

Newton's first law of motion is also called law of inertia because it depends on mass of the object.

Thus, many years before newton wrote this law, of motion stated the same idea as the principal of inertia.

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The contact force (in N) between each pair of boxes is mathematically given as

F_{ab} = 3.56 N

F_{bc} = 1.2 N

Generally, Any force that is generated as a consequence of two objects coming into touch with one another is referred to as a contact force. Contact forces are present everywhere and are the cause of the vast majority of macroscopic groupings of matter's obvious interactions with one another.

In conclusion, The equation for is  Acceleration of the system is mathematically given as

a = 8.25 / (5.85 + 2.95 + 1.50)

a= 0.8 m/s^2

Therefore

F_{ab} = (Mb + Mc)*a

F_{ab} = (2.95 + 1.50) * 0.8

F_{ab} = 3.56 N

F_{bc} = Mc * a

F_{bc}= 1.5 * 0.8

F_{bc} = 1.2 N

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Answer:

Convection!

Explanation:

This is convection because, when the air touches the ice cube it gets cooler, moves up, and drags in the fresh air to be cooled down once again. This cycle continues until the whole ice cube had been melted!

6,240,000,000,000,000,000 electrons

Answer:

KE= 1,536,000,000 Joules

Explanation:

The equation to find Kinetic Energy (KE) is

[tex]KE=\frac{1}{2}mv^{2} \\[/tex]

You are given

m=480,000.0 kg

v= 80 m/s

Substitute the values into the equation and solve for KE

[tex]KE= \frac{1}{2}* 480000*80^{2}[/tex]

KE= 1,536,000,000 Joules

The change in the speed of a projectile is because the force of gravity only acts in a downward direction.

A projectile motion is a type of motion, in which object thrown or projected into the air, is subject to only the acceleration of gravity as the only force.

A projectile motion is a motion that occurs in a plane. Motion in a plane is also referred to as a motion in two dimensions.

The reference point of a projectile motion will be the origin and the two coordinate axes X and Y.

When an object is thrown upwards, the force of gravity tends to oppose the motion of the object, this causes the speed of the object to decrease and eventually become zero at the maximum height.

As the object begins to descend, the speed starts to increase because force of gravity is acting in the same direction as the object's motion.

Horizontal velocity of a projectile does not change, because force of gravity only acts in a downward direction.

Thus, the change in the speed of a projectile is because the force of gravity only acts in a downward direction.

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The acceleration of the car if it arrives at the bottom of the hill is a = 0.204 m/s².

Given data,

time = 7s

speed = 35 m/s

distance = ?

acceleration = ?

To find distance using the formula,

speed = d / t

d = s / t

d = 35 m/s / 7s

d = 5 m

To find acceleration using formula,

d = ut + 1/2at²

So putting the data in this formula we get,

5 = 0 x 7 + 1/2 a 7²

5 = 1/2 a 7²

a = 5 / (1/2 x 49)

a = 5 / 24.5

a = 0.204 m/s²

Any process where the velocity changes is referred to as acceleration. There are only two ways to accelerate: changing your speed or changing your direction, or changing both. This is because velocity is both a speed and a direction.

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The scientific reason for the change is that baking soda underwent a chemical change to evolve a gaseous carbon dioxide.

A chemical change is any process in which reactants are changed into products by the breaking or creation of chemical bonds.

In a chemical change, the chemical bonds in the reactants are broken and rearranged to form new substances called products. One of the evidences that a chemical change has occurred is gas evolution.

According to this question, a student adds baking soda to vinegar and observes that a large amount of gaseous carbon dioxide is released.

Therefore, it can be said that the scientific reason for the change is that baking soda underwent a chemical change to evolve a gaseous carbon dioxide.

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Answer:

H = Vav t

Vav = 630 ft / 6 sec = 105 ft/s

Check:

H = Vav * t = 105 ft/sec * 6 sec = 630 ft

A ball is dropped from the second floor and falls then the ball's velocity is positive  and acceleration is negative.

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The voltage produced by the first battery is 0.32 volt greater when compared to the voltage produced by the second battery

From the question given above, the following data were obtained:

We can obtain how great the voltage of the first battery is compared to the voltage if the second battery as follow:

How great is the voltage of first = Volatge of first - voltage of second

How great is the voltage of first = 3.12 - 2.8

How great is the voltage of first = 0.32 volt

Thus, the voltage of the first battery is greater than the voltage of the second battery by 0.32 volt

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Answer:

20 seconds

360 meters

Explanation:

On a distance-time graph:

Therefore:

Convert Bus A's given speed of 54 km/h into m/s by dividing by 3.6:

[tex]\implies \sf 54\; km/h=\dfrac{54}{3.6}=15\:m/s[/tex]

Therefore:

So the y-intercept is (0, 60) and the gradient is 15.

Substitute this information into the slope-intercept form of a linear equation to create an equation representing the motion of Bus A:

[tex]\boxed{y=15x+60}[/tex]

Convert Bus B's given speed of 36 km/h into m/s by dividing by 3.6:

[tex]\implies \sf 36\; km/h=\dfrac{36}{3.6}=10\:m/s[/tex]

Therefore:

So the y-intercept is (0, 160) and the gradient is 10.

Substitute this information into the slope-intercept form of a linear equation to create an equation representing the motion of Bus B:

[tex]\boxed{y=10x+160}[/tex]

To find the time when Bus A is at the same position as Bus B, substitute Bus A's equation into Bus B's equation and solve for x:

[tex]\implies 15x+60=10x+160[/tex]

[tex]\implies 15x+60-10x=10x+160-10x[/tex]

[tex]\implies 5x+60=160[/tex]

[tex]\implies 5x+60-60=160-60[/tex]

[tex]\implies 5x=100[/tex]

[tex]\implies \dfrac{5x}{5}=\dfrac{100}{5}[/tex]

[tex]\implies x=20[/tex]

Therefore, the two buses are at the same position 20 seconds after they start moving.

To find their position at this point, substitute x = 20 into one of the equations and solve for y:

[tex]\implies y=10(20)+160[/tex]

[tex]\implies y=200+160[/tex]

[tex]\implies y=360[/tex]

Therefore, the two buses are at the same position at 360 m from the origin.

Bus A overtakes Bus B 20 seconds after they start moving and at 360 m from the origin.

The correct answer is 97.8 m.

The speed of an object is the rate at which it travels from one place to another in a set period of time. Since it only describes the amplitude of an object's motion and not its direction, it is a scalar quantity. The S.I. unit of speed is m/s.

Initial horizontal velocity u = 20 ms^-1

height, y = 120m

To cover 120m time taken be t sec,

now taking, g = 10 m/s^2

y = 1/2 g t^2

t^2 = 2y / g

t^2 = (2 × 120) / 10

t^2 = 240 / 10

t^2 = 24 s

t = √24

t = 4.89 sec

In 1 sec distance covered is,

x = ut

x = 20 × 4.89

x = 97.8 m

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Answer:

Buoyant force = g M / V * V = g d V where d is the mass / volume (density)

Fw = g * Vw * dw         buoyant force of water on block (10 N)

Fbr = g * Vw * dbr        buoyant force of brine on block

Fbr / Fw = 1.2        buoyant force of brine is 1.2 times that of water

Buoyant force of brine = 10 * 1.2 N = 12 N

Thus, the block will weight 90 - 12 = 78 N submersed in brine

a. The magnitude of the electric force on the bead is 1.0545 × 10⁻⁵ N  and its direction is to the right.

b. The work done on the bead is  2.025 × 10⁻⁶ J

c.  The change in electric potential energy (in J) as the bead moves from A to B is  -2.025 × 10⁻⁶ J

d. The potential difference (in V) between A and B is -60 V

The magnitude of the electric force on the charge is given by F = qE where

So, substituting the values of the variables into the equation, we have

F = qE

F = 37.0 × 10⁻⁹C × 285 N/C

= 10545 × 10⁻⁹ N

= 10.545 × 10⁻⁶ N

= 1.0545 × 10⁻⁵ N

Since the electric field is pointing to the right and the charge is positive, so, the direction of the electric force is to the right.

So, the magnitude of the electric force on the bead is 1.0545 × 10⁻⁵ N  and its direction is to the right.

The work done on the bead by the electric force is W = Fd where

So, substituting the values of the variables into the equation, we have

W = Fd

= 1.0545 × 10⁻⁵ N  × 0.192

= 2.02464 × 10⁻⁶ J

≅ 2.025 × 10⁻⁶ J

So, the work done on the bead is  2.025 × 10⁻⁶ J

From work-energy principles, the work done by the bead, W equal the change in electric potential energy of the bead ΔU.

ΔU = -W

Since W = 2.025 × 10⁻⁶ J

ΔU = -W

= -2.025 × 10⁻⁶ J

So, the change in electric potential energy (in J) as the bead moves from A to B is  -2.025 × 10⁻⁶ J

The potential difference between A and B is given by ΔV = ΔU/q where

So, substituting the values of the variables into the equation, we have

ΔV = ΔU/q

ΔV =  -2.025 × 10⁻⁶ J/37.0 × 10⁻⁹C

= -0.06 × 10³ V

= -60 V

So, the potential difference (in V) between A and B is -60 V

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