Sudhi is studying the motion of a toy car. she places the car in the middle of a ramp and releases it. which best describes the reference point in this scenario?

Answers

Answer 1

Answer:

From the motion of the toy car, the reference point of this scenario is the starting position of the car.

What is reference point?

The reference point of an object is defined as the position through the measurement of an object is taken.

In studying the motion of a toy car, if she places the car in the middle of a ramp and releases it, we can conclude that the reference point of this scenario is the starting position of the car.

The starting position of the car will serve as point of reference because, the distance, speed, and time of motion of the car can be obtained with respect to the starting point.

Learn more about reference point here: brainly.com/question/2037494

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Answer 2

Answer: Thank you for posting your question here. Below are the choices that can be found elsewhere:

a. the top of the ramp
b. the bottom of the ramp
c. the ending position of the car
d. the starting position of the car

I think the answer is D which is the starting position of the car. I hope it helps.

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two plane mirrors are at right angles to each other. a man stands between them and combs his hair with his right hand. in how many of the images will he be seen using his right hand? none 1 2 3

Answers

Explanation:

In the first two images the comb would be in the left hand of the man. The image which appears in between those two images has the comb in its right hand. Therefore, the images in which he will be seen using his right hand is one.

What is scientific concensus?

Answers

Scientific Consensus is primarily a position, judgment, or a opinion of scientist in a particular area of there studies. So more or less like a opinion of the matter, its like saying, I don't agree with your study, and I think it should have been done another way.

A bullet leaves a gun with a horizontal velocity of 100 m/s. Calculate the distance it would travel in 1.3 seconds. a 1247 m
b 0.013 m
c 130 m
d 76.92 m

Answers

Answer:

Option C is the correct answer

Explanation:

We have equation of motion , $s= ut+(1)/(2) at^2$ , s is the displacement, u is the initial velocity, a is the acceleration and t is the time.

In this case initial velocity = horizontal velocity = 100 m/s, acceleration = 0 $m/s^2$ , we need to calculate displacement when time = 1.3 seconds.

Substituting

$s= 100*1.3+(1)/(2) *0*1.3^2 = 130 meter$

So, bullet will travel a distance of 130 meter in 1.3 seconds.

Option C is the correct answer

Force of attraction between the Earth(m=5.98x10^24) and a 70 kg student. distance of 6.38x10^6

Answers

F=G(m₁m₂/r²)
= 9.81(70*5.98x10²⁴/6.38x10⁶)
=9.81(6.56x10³¹)
=6.44x10³²

A boat loaded with a barrel of water floats in a swimming pool. When the water in the barrel is poured overboard, the swimming pool level will _____.Question 6 options:

fall

remain unchanged

rise

Answers

Answer: Remain unchanged

Explanation:

The boat with water barrel overboard floats in swimming pool when weight of the water displaced by the boat is equal to the buoyant force acting on the boat.

When the water in the barrel is poured overboard, the level of the swimming pool level would remain unchanged as the weight of the boat with the water and barrel would remain unchanged ( as the density and volume of the whole system remains same) and hence, the weight of the water (of the swimming pool) displaced by the boat would remain same.

A boat loaded with a barrel of water floats in a swimming pool. When the water in the barrel is poured overboard, the swimming pool level will remain unchanged.

A suitcase had a width of 55 cm. Which unit conversion fraction should you use to find the width in inches?A. 1 cm/2.54 in

B. 1 in/2.54 cm

C. 2.54 cm/1 in

D. 1 in/1 cm

Answers

The answer is B.

When you multiply 55 cm by 1in/2.54 cm, the unit cm cancels leaving only in.

55 cm is thus 21.654 in.

Answer:

B. $(1 in)/(2.54 cm)$

Explanation:

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