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2 years ago

Please help on this one?

Physics

2 answers:

SSSSS [86.1K]2 years ago

8 0

I think it would be near the sun due.to high rays of sun

marusya05 [52]2 years ago

4 0

when the comet is close to the sun it will have the highest velocity due to its gravitational pull and the suns rays.

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A baseball starts from rest and rolls 40.0 m down a hill in 10.0 seconds what is the acceleration

Stella [2.4K]

Acceleration is velocity over time. in order to find velocity, you divide distance over time
$v = \frac{d}{t} = \frac{40}{10} = 4 \\ a = \frac{v}{t} = \frac{4}{10} = 0.4 \: \frac{m}{ {s}^{2} }$

3 0

2 years ago

Cutting down trees can decrease the amount of water vapor entering the air through the processes of ____?

AlexFokin [52]

✿ Transpiration is the process by which water is carried through plants from roots and release water vapor through their leaves.

✿ Cutting down trees can decrease the amount of water vapor entering the air through the processes of Transpiration

5 0

2 years ago

According to Einstein's special theory of relativity, in which frames of reference will all laws of physics apply?

kenny6666 [7]

Answer: Within any frame of reference that is accelerating

Special relativity was proposed on 1905 by Einstein, who developed his theory based on the following two postulates:

1. The laws of physics are the same in all inertial systems. There is no preferential system.

2. The speed of light in vacuum has the same value for all inertial systems.

Focusing on the first postulate, it can be affirmed that any measurement on a body is made with reference to the system in which it is being measured.

Now, taking into account that an inertial reference system is the one that complies with the principle of inertia:

"For a body to have acceleration, an external force must act on it."

The correct answer is

Within any frame of reference that is accelerating

3 0

2 years ago

Read 2 more answers

The coordinates of a bird flying in the xy plane are given by x(t)=αt and y(t)=3.0m−βt2, where α=2.4m/s and β=1.2m/s2. Calculate

yuradex [85]

The derivative of the function space as a function of time is equal to a function of speed as a function of time.

$x(t)=2.4t \\ \frac{x(t)}{t}=t \\ v_{x}(t)=t \\ \\ y(t)=3-1.2\times t^2 \\ \frac{y(t)}{t}=1.2\times2t \\ v_{y}(t)=2.4t$

The velocity vector is given by the vector sum of the velocities of both axes.

$v_{R}^2(t)=v_{x}^2(t)+v_{y}^2(t) \\ v_{R}^2(t)=(t)^2+(2.4t)^2 \\ \boxed {v_R(t)=2.6t}$

If you notice any mistake in my english, please let me know, because I am not native.

4 0

3 years ago

Read 2 more answers

The passengers are facing forward in the direction that the train is moving. What will happen to the passengers sitting on a tra

marysya [2.9K]

Passengers which are facing forward in the direction that train is moving, their bodies will move forward in application of sudden stop of train.

<h3>What is force of inertia?</h3>

Force of inertia is the force which acts in the opposite direction of the force of acceleration acting on the body.

Given infroamtion-

The passengers are facing forward in the direction that the train is moving.

The train comes to a sudden stop.

Lets see what happens step wise-

Here, the train in moving in the forward direction and the passengers are also facing forward in the direction that the train is moving.

Now the train comes to a sudden stop. By this sudden stop the train stops suddenly but all the object including the passengers is still travelling forward due to the inertia force.

Thus all the passenger will tend to move in the direction as they are still travelling.

Hence, passengers which are facing forward in the direction that train is moving, their bodies will move forward in application of sudden stop of train.

Learn more about the force of inertia here;

brainly.com/question/10454047

6 0

2 years ago