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3 years ago

How long does it take a 100 kg rocket to increase speed from 10

Physics

1 answer:

oee [108]3 years ago

5 0

Answer:

76 seconds

Explanation:

Using the formula t=vf-vo/a, where t=time, vf= final velocity, v0= initial velocity, and a= acceleration, we can solve for your problem.

Plug in known variables...

t=200-10/a

we can solve for a by using the formula F=ma where f=force, m= mass, and a=acceleration and rearranging it to solve for a.

a=F/m

Plug in known variables...

a=250N/100kg

a=2.5m/s^2

Plug in our newly found acceleration of 2.5 m/s^2 into our first equation and solve....

t=190/2.5

t=76 seconds

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3 years ago

Review. (c) Assume the dipole is a compass needle-a light bar magnet-with a magnetic moment of magnitude μ . It has moment of in

hammer [34]

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$T = \frac{ Id^{2}\theta }{dt^{2} }$

$-\mu B\theta=\frac{ Id^{2}\theta }{dt^{2} }$

$\frac{d^{2}\theta }{dt^{2} } = -(\frac{\mu BI}{\theta} )$

By Comparing the above equation with the SHM equation

$\frac{d^2 \theta} {dt^{2} } = -\omega^{2} \theta$

$\omega^{2} =\frac{ \mu B}{I}$

Frequency = $\frac{\mu}{2\pi }$

= $\frac{\sqrt{\frac{\mu B}{I} } }{2\pi}$

= $\frac{1}{2\pi } \sqrt{\frac{\mu B}{I} }$

To learn more about a magnetic moment, visit:

brainly.com/question/17000031

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8 0

1 year ago

A dog runs 50 meters north 40 meters east and 20 meters south what is the displacement

Allisa [31]

So....
imagine the x and y axis or draw it on a piece of paper, a white board or even on your wall if you like. I'm kidding just draw it on a piece of paper

50m up and 20m down
the dog's displacement is 50 - 20 which is 30
your answer is 30m north

3 0

3 years ago

Bailey walks to the pizza place for lunch. To get there, she walks 3 km East, then 8 km south, and then 3 Km East again

sveticcg [70]

Answer:

Total distance she cover = 14km

Magnitude of displacement = 10 km

Direction of her displacement is East-south

Explanation:

Given:

Distance travel (East) = 3 km

Distance travel to south = 8 km

Distance travel (East) = 3 km

Computation:

Total distance she cover = 3km+8km+3km

Total distance she cover = 14km

Magnitude of displacement = $\sqrt{(3+3)^2+(8)^2}\\$

Magnitude of displacement = 10 km

Direction of her displacement is East-south

8 0

4 years ago

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VMariaS [17]

Answer:

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4 years ago