3 years ago

Why do some coastal cities experience a moderation of temperature from water?

Physics

1 answer:

valentinak56 [21]3 years ago

5 0

Because of their different climates?

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Give two examples of contact force and non contact force

Crank

Answer:

Explanation:

The two examples of contact forces are frictional force and applied force. The two examples of noncontact forces are gravitational force and magnetic force.

5 0

2 years ago

You apply the same force to two objects. Object 1 has mass M and object 2 has mass 5M. The acceleration of object 2 is

Hitman42 [59]

five times that of object l

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3 years ago

The force of gravity acting<br> on a child's mass on earth is 490 newtons. what's the child's mass?

UNO [17]

F = m • a

What we know:
- Gravity: 9.8 m/s
- Force: 490 N

Equation derived:
m = F/a
m = 490/9.8
= 50 kg

6 0

3 years ago

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The question is in the attachment.

sammy [17]

Answer:

Correct answer: Yes, with acceleration a = 10 m/s²

Explanation:

By definition acceleration is equal.

a = ΔV / Δt = (V₂ - V₁) / (t₂ - t₁)

a = (10 - 0)/ (1 - 0) = (20 - 10)/ (2 - 1) = ........ (50 - 40)/ (5 -4) = 10 m/s²

a = 10 m/s²

God is with you!!!

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4 years ago

Explain why the speed of light is lower than 3.0 × 108 m/s as it goes through different media.

alexandr1967 [171]

Answer:

air or vacuum is the least refractive index medium of most rare medium

all other medium has more value of refractive index and hence the speed will be less than the speed of the air

Explanation:

As we know that speed of light in any medium and speed of light in air is related to each other by the equation

$v = \frac{c}{\mu}$

here we know that

$c = 3 \times 10^8 m/s$

[tex]\mu [tex] = refractive index of the medium

so we know that air or vacuum is the least refractive index medium of most rare medium

all other medium has more value of refractive index and hence the speed will be less than the speed of the air

4 0

3 years ago

Read 2 more answers