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3 years ago

Find avrage speed for a horse that traveled east 25 km in 4 hours

Physics

1 answer:

inysia [295]3 years ago

3 0

Answer:

6.25 mph

Explanation:

You would divide 25 by 4 to get the average miles per hour.

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If Mars had the same amount of mass as Earth, would it have more moons, less moons, or the same amount of moons as it has now?

Ann [662]

Answer:I think it would have the same amount of moons cause it will match the same gravity

So they would have the same moons

Explanation:

6 0

3 years ago

Please help!<br> What is momentum?

VARVARA [1.3K]

Answer:

a property of a moving body that the body has by virtue of its mass and motion and that is equal to the product of the body's mass and velocity

Explanation:

Formula:

Momentum: Mass x Velocity

Hope it helps!

8 0

3 years ago

During the French and Indian war France and Great Britain fought for control of north American territory what impacted the end o

Marta_Voda [28]

Answer:

during American War, George Washington was voted as a military chef. So USA and France decided to be allies (France lost 7years war so they wanted to revenge to Great Britain).

after revolution

In 1778, Bill of Rights was made after that, every Americans got liberty, New laws with president and their own country (USA).

4 0

3 years ago

The tub of a washing machine goes into its spin cycle, starting from rest and gaining angular speed steadily for 6.00 s, at whic

MatroZZZ [7]

Answer:

$N = 42 rev$

Explanation:

As we know that initial angular speed of the tub was zero and then it increases uniformly to 4 rev/s in t = 6.00 s

so we will have

$\theta_1 = \frac{\omega_f + \omega_i}{2} t$

$\theta_1 = \frac{2\pi f_2 + 2\pi f_1}{2}(t)$

$\theta_1 = \frac{2\pi \times 4 + 0}{2}(6)$

$\theta_1 = 75.4 rad$

Now when the tub will comes to rest uniformly after opening the lid in time interval of t = 15 s

then we have

$\theta_2 = \frac{\omega_f + \omega_i}{2} t$

$\theta_2 = \frac{2\pi f_2 + 2\pi f_1}{2}(t)$

$\theta_2 = \frac{2\pi \times 4 + 0}{2}(15)$

$\theta_2 = 188.5 rad$

Now total angular displacement of the tub is given as

$\theta = \theta_1 + \theta_2$

$\theta = 75.4 + 188.5$

$\theta = 263.9 rad$

so number of revolutions is given as

$\N = \frac{\theta}{2\pi}$

$N = 42 rev$

3 0

3 years ago

A 10kg box accelerates forward at a rate of 12 m/s^2. What is the force acting on the box?

Allushta [10]

Answer:

120N

Explanation:

Newton's second law formula: F= ma

given that m = 10 kg, a = 12 m/s^2

F = ma = 10 kg * 12 m/s^2 = 120 kgm/s^2 = 120 N

5 0

3 years ago