All categories

4 years ago

What is one helpful way friction affects a car?

Physics

1 answer:

Bezzdna [24]4 years ago

5 0

When we apply brackes. It help car to stop

You might be interested in

How are vibration waves and energy related to sounds

Lesechka [4]

In electromagnetic waves, energy is transferred through vibrations of electric and magnetic fields. ... In sound waves, energy is transferred through vibration of air particles or particles of a solid through which the sound travels.

3 0

3 years ago

Read 2 more answers

What's the answer for this question will give BRAILIEST!!!!!

fredd [130]

The third one! :) Hope you live up to what ya promised man lol.

6 0

4 years ago

Ocean waves pass through two small openings, 20.0 m apart, in a breakwater. You're in a boat 70.0 m from the breakwater and init

Klio2033 [76]

Answer:

λ = 5.65m

Explanation:

The Path Difference Condition is given as:

δ= $(m+\frac{1}{2})\frac{lamda}{n}$ ;

where lamda is represent by the symbol (λ) and is the wavelength we are meant to calculate.

m = no of openings which is 2

∴δ= $\frac{3*lamda}{2}$

n is the index of refraction of the medium in which the wave is traveling

To find δ we have;

δ= $\sqrt{70^2+(33+\frac{20}{2})^2 }-\sqrt{70^2+(33-\frac{20}{2})^2 }$

δ= $\sqrt{4900+(\frac{66+20}{2})^2}-\sqrt{4900+(\frac{66-20}{2})^2}$

δ= $\sqrt{4900+(\frac{86}{2})^2 }-\sqrt{4900+(\frac{46}{2})^2 }$

δ= $\sqrt{4900+43^2}-\sqrt{4900+23^2}$

δ= $\sqrt{4900+1849}-\sqrt{4900+529}$

δ= $\sqrt{6749}-\sqrt{5429}$

δ= 82.15 -73.68

δ= 8.47

Again remember; to calculate the wavelength of the ocean waves; we have:

δ= $\frac{3*lamda}{2}$

δ= 8.47

8.47 = $\frac{3*lamda}{2}$

λ = $\frac{8.47*2}{3}$

λ = 5.65m

3 0

4 years ago

What happens to the mass of a metal ball if its heated?

erik [133]

<span>Mass doesn't change when the temperature of the ball changes.
(Unless, of course, it gets so hot that it melts, and part of it falls off
and rolls under the table.)</span>

5 0

3 years ago

Read 2 more answers

A 2kg baseball has a momentum of 75 kg m/s. Find it’s speed

almond37 [142]

Answer:

37.5m/s

Explanation:

momentum = mass x velocity

momentum / mass = velocity = speed

75kg*m/s / 2kg = 37.5m/s

6 0

3 years ago