All categories

3 years ago

Could someone help me for the first slide pls? thanks

Physics

1 answer:

ladessa [460]3 years ago

7 0

Hey there mate ;)

Given PPT image question is attached.

For answers :-

☆ The spectators in the stand are like particles in a solid because the spectators are sitting very close to each other with no spaces in between them, which is like a property in solids. 

☆ The players in the pitch are like particles in a gas because there is a large amount if space in between the players, which is like a property of gases.

☆ The spectators standing in the terraces are like particles in a liquid because there is little space in between the spectators, which is like a property of liquid.

You might be interested in

If an object is in equilibrium, which of the following statements is NOT true?

Naddik [55]

Equilibrium is when the opposing forces or influences are balanced. So it would be E!

5 0

4 years ago

slader How much energy is required to move a 1040 kg object from the Earth's surface to an altitude four times the Earth's radiu

andrew-mc [135]

Answer:

ΔU = 5.21 × 10^(10) J

Explanation:

We are given;

Mass of object; m = 1040 kg

To solve this, we will use the formula for potential energy which is;

U = -GMm/r

But we are told we want to move the object from the Earth's surface to an altitude four times the Earth's radius.

Thus;

ΔU = -GMm((1/r_f) - (1/r_i))

Where;

M is mass of earth = 5.98 × 10^(24) kg

r_f is final radius

r_i is initial radius

G is gravitational constant = 6.67 × 10^(-11) N.m²/kg²

Since, it's moving to altitude four times the Earth's radius, it means that;

r_i = R_e

r_f = R_e + 4R_e = 5R_e

Where R_e is radius of earth = 6371 × 10³ m

Thus;

ΔU = -6.67 × 10^(-11) × 5.98 × 10^(24)

× 1040((1/(5 × 6371 × 10³)) - (1/(6371 × 10³))

ΔU = 5.21 × 10^(10) J

7 0

3 years ago

What is Newton's Third law of motion? Explain how this roller coaster

Ivenika [448]

Answer:

Newton's third law of motion says, "For every action there is an equal and opposite reaction." So that applied to the student's roller coaster, between the marble and the track. When the marble went up and down the hill, it created different forces onto the track.

Explanation:

mark as brainiest

6 0

2 years ago

In each of the four situations below an object is experiencing (nearly) uniform circular motion. State what force is providing t

Stells [14]

Answer:

Explanation:

Given that a centripetal force is a form of force that gives rise or causes a body to move in a curved path.

Hence;

1. When a car is being driven around a track, it is the FORCE OF FRICTION that is acting upon the turned wheels of the vehicle, which transforms into the centripetal force required for circular motion.

2. When a ball being is swung on the end of a string, TENSION FORCE acts upon the ball, which transforms the centripetal force required for circular motion.

3. When the moon is orbiting the earth, it is the FORCE OF GRAVITY acting upon the moon, which transforms the centripetal force required for circular motion.

4. A rotating wheel on the other hand has NO centripetal force because centripetal force is pull towards the center of a motion. However the speed of the object is tangent to the circle, while the direction of the force is also perpendicular to the direction of the rotating wheel.

4 0

3 years ago

How are inertia and momentum related?

Ipatiy [6.2K]

Explanation:

My sources says "Inertia is an intrinsic characteristic of the object related to its mass. Inertia tells you how much force it will take to cause a particular acceleration on the object. Momentum is a function of an object's mass and velocity. Momentum is a measure of the kinetic energy of the object."

Hopes this helps!

If you feel this answer is correct please mark my answer as the most brainliest, please and thank you!

4 0

3 years ago