PHYSICS HIGH SCHOOL

The path followed by a projectile is called its _____.A. projectile motion


B. projectile path


C. trajectory


D. path of motion

Answers

Answer 1
Answer:

The path followed by a projectile is called itstrajectory. (C)

In the most common school situation... with gravity but without air resistance, the trajectory of a projectile is the shape of an inverted parabola (nose  pointing up).  That's the result of constant horizontal velocity and accelerated vertical velocity.

Answer 2
Answer:

Answer:

Trajectory

Explanation:

Trajectory is the path followed or traced by a projectile.

It follows a parabola shape. That is the shape got in javeline.

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Which statement is true concerning the evidence for black holes?Scientists can see black holes with powerful telescopes.

Scientists can see the effect of black holes on nearby stars.

Scientists can see trails left in space by black holes.

There is no evidence for black holes.

Answers

Scientists can see the effect of black holes on nearby stars is true concerning the evidence for black holes.

If a 100-N net force acts on a 50-kg car, what will the accelaration of the car be?

Answers

2m/s^2   how to get it: since you already know the force and mass and the formula for force is force=(mass)(acceleration) you isolate the variable of acceleration which is a by dividing (m)(a) by (m) which equals f/m=a then you plug in your known numbers where they go so f=100N m=50kg   100N/50kg= 2 therefore the acceleration is 2m/s^2  hope this helped you!!!

What is meant by fundamental unit? write any two difference between mass and weight.​

Answers

Answer:

Fundamental unit is any unit that is not dependent on other units and other units can be derived from them

Explanation:

Units such as Kilogram, Mass and Time are said to be fundamental units because they are independent.

Differences between Mass and weight;

1. Mass is the measure of the amount of matter in a body while weight is a measure of how the force of gravity acts upon that mass.

2. Mass is a scalar quantity while weight is a vector quantity

What makes a hypothesis testable

Answers

A hypothesis is testable when you can create an experiment to study the proposition contained within the hypothesis. For example, the hypothesis ‘Santa travels slower than a unicorn’ is testable in theory by measuring the speeds of both, but it is not truly testable because neither exists in reality.

Answer:

it must be able to be proved right or wrong - apex

Explanation:

Irregular galaxies are very large. True or False?

Answers

Answer:

False , irregular galaxies are not large galaxy.

Explanation:

False , irregular galaxies are not large galaxy.

There is no specific shape of irregular galaxies. They are one of the tiniest galaxies, filled with gas and dust. Having lots of dust and gas means there's a lot of star formation heading at these galaxies. This process can make them very clear. some examples of these type of galaxies are the Major and minor Magellanic Clouds.
it's false i hope this helps :)

Erica (39 kg ) and Danny (46 kg ) are bouncing on a trampoline. Just as Erica reaches the high point of her bounce, Danny is moving upward past her at 4.6 m/s . At that instant he grabs hold of her.

Answers

Answer:

V = 2.79 m/s

Explanation:

Momentum before = momentum after

Erica's momentum = 0

Danny momentum = 49 kg * 4.9 m/s = 240.1 kg-m/s

240.1 + 0 = (37 + 49) kg * V

86 V = 240.1

V = 2.79 m/s
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