Ask question

Ask question

All categories

2 years ago

11

1-A car with momentum 19016 kg*m/s has a mass of 1300kg. What is the speed

1 answer:

Ymorist [56]2 years ago

6 0

The speed would be 130 mph because the car is very heavy

You might be interested in

Which object will be the easiest for a magnet to pull? a 1-gram piece of paper, a 2-gram eraser, a 3-gram steel paper clip, a 4-

Vlad1618 [11]

Steel paper clip because it can be moved by the magnet and it is lighter than the iron nail

6 0

2 years ago

A speedboat travels from the dock to the first buoy, a distance of 20 meters, in 18 seconds. It began the trip at a speed of o m

MArishka [77]

If you or any else needs the answer for this it is C. +1.11 m/s.

5 0

2 years ago

Read 2 more answers

How many degrees are in each quadrant <br> A: 90°<br> B: 30°<br> C: 180°<br> D: 360°

Airida [17]

In one quadrant there are 90 degrees.

8 0

2 years ago

Why heat capacity for polymer higher than metal?

jok3333 [9.3K]

Because polymers are covalently bonded material, and metals are metalicly bonded material.

Covalent bonds do not let atoms exchange electrons like metalic bonds do.

4 0

2 years ago

A hollow cylinder of mass 2.00 kg, inner radius 0.100 m, and outer radius 0.200 m is free to rotate without friction around a ho

Aneli [31]

Answer:

h=2.86m

Explanation:

In order to give a quick response to this exercise we will use the equations of conservation of kinetic and potential energy, the equation is given by,

$\Delta PE_i + \Delta KE_i = \Delta PE_f +\Delta KE_f$

There is no kinetic energy in the initial state, nor potential energy in the end,

$mgh+0=0+KE_f$

In the final kinetic energy, the energy contributed by the Inertia must be considered, as well,

$mgh = (\frac{1}{2}mv^2+\frac{1}{2}I\omega^2)$

The inertia of the bodies is given by the equation,

$I=\frac{m(R_1^2+R^2_2)}{2}$

$I=\frac{2(0.2^2+0.1^2)}{2}$

$I=0.05Kgm^2$

On the other hand the angular velocity is given by

$\omega =\frac{v}{R_2}=\frac{4}{1/5} = 2rad/s$

Replacing these values in the equation,

$(0.5)(9.8)(h) =\frac{1}{2}*0.5*4^2+\frac{1}{2}*0.05*20^2$

Solving for h,

$h=2.86m$

5 0

2 years ago