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3 years ago

What would have the greatest gravitational pull on each other?

Physics

1 answer:

denpristay [2]3 years ago

5 0

Answer:

Jupiter

Characteristics of a Dwarf Planet

One of Sir Isaac Newton's accomplishments established that the gravitational force between two bodies is proportional to their masses. All other things being equal, the planet with the strongest pull is the one with the largest mass, which is Jupiter.

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Steven carefully places a 1.65-kg wooden block on a frictionless ramp, so that the block begins to slide down the ramp from rest

nadya68 [22]

Answer:

a. Gravity and c. Spring

Explanation:

Formula for work energy $W = \vec{F} \bullet \vec{S} = FScos(\alpha)$

whereas F is the force acting on the block, S is the distance traveled, and $\alpha$ is the angle between 2 vectors F and S.

If F is perpendicular to S, then

$\alpha = 90^o$

$cos(\alpha) = cos(90^o) = 0$

$W = FS*0 = 0$

a. Normal force is the reaction force acting from the ramp back on the wooden block. This force is perpendicular to the direction of sliding. Therefore this force would do no work.

b. Gravity is the force acting downward, this would have an angle of $90^o - 58.3^o = 31.7^o$ degrees so the work is non-zero.

c. Spring force would have the same direction as sliding so the work is non-zero.

d. Friction force would have the same direction as sliding. However, as this is a frictionless ramp, the friction coefficient would be 0. Friction force would also be zero and so as its work.

5 0

4 years ago

Help needed

MakcuM [25]

Answer: Atmosphere and geosphere.

Geo-sphere is the solid part of the earth. Hydrosphere is the water part. The living things on the earth make up the biosphere. The gases, water vapors etc make up the atmosphere. When a volcanic eruption adds carbon dioxide to the air, the carbon-dioxide is being added from geosphere to the atmosphere. Hence, there is interaction between atmosphere and geosphere.

6 0

4 years ago

A van travels 24 km with a constant speed of 65 km/h and another 50 km with a constant speed of 80 km/h. How long did it take fo

Bess [88]

I don't know the answer to that

7 0

4 years ago

What determines an object’s velocity?

joja [24]

Answer:

I think it's 3) speed and direction

8 0

3 years ago

Select the correct answer.

Nastasia [14]

The force of a test charge would be doubled if the electric field is doubled.

Answer: Option A

<u>Explanation:</u>

Electric field is the region or range up to which a charge particle will have its influence of electric energy on another charged particles. So the experienced force by the test charge up to a certain range is defined as the electric field of that charged particle.

This means that the electric field strength is inversely proportionate to the test charge and directly proportionate to the force acting on the test charge. As ,

$E=\frac{\text { Force }}{\text { Test charge }}$

So, force will be product of electric field strength with test charge. Thus,

$\text { Force } \propto \text { Test charge and Force } \propto \text { Electric field }$

So, if there is increase in the electric field, then there will be increase in the force of the test charge. Thus, if the electric field is doubled thereby the force of a test charge will also be doubled.

4 0

4 years ago