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The rotational velocity of a merry-go-round increases at a constant rate from 0.6 rad/sec to 1.8 rad/s in a time of 4 s.
What is the rotational acceleration of the merry-go-round?
A pipe with a 2m diameter carries water having a velocity of 4 m/s. What is the mass flow rate of the water in kg/s at the following temperatures.
A 150 Newton horizontal force pushes a 20 kg mass sitting on a horizontal surface. Additionally, the horizontal surface exerts a 50 Newton frictional force on the mass. find the hydroxide-ion concentration of this solution
A bunch of grapes is placed in a spring scale at a supermarket. The grapes oscillate up and down with a period of 0.64s, What is the mass of the grapes
A 10 g bullet traveling at 360m/s strikes a 8.0kg , 0.90-m-wide door at the edge opposite the hinge. What is the angular velocity of the door just after impact
The scalar product of vectors and is +51.0. Vector has magnitude 9.00 and direction 28.0 west of south. If vector has direction 36.0 south of east, what is the magnitude of.
A satellite has a mass of 102 kg and is located at 2.02 106 m above the surface of Earth. find the magnitude of the gravitational force on the satellite
a 70kg person stands on a diving board 4m long. the boards mass is 25kg and is bolted to two supports. calculate the force on the board at each of the supports
q1. cannon at the top of a 147 m high cliff fires at a pirate ship. the cannonball has an initial velocity of 114 ms at
After the Sun exhausts its nuclear fuel, its ultimate fate might be to collapse to a white dwarf state. In this state, it would have about the same mass as it has now, but its radius would be equal to the radius of the Earth.
A 3.0cm x 3.0cm parallel-plate capacitor has a 2.0 spacing. The electric field strength inside the capacitor is 1.3×10^5 V/m How much charge is on each plate
A laser beam is incident on two slits with a separation of 0.175 mm, and a screen is placed 4.85 m from the slits. estimate the wavelength of the laser light
A rocket burns fuel at a rate of 200 kg/s and exhausts the gas at a relative speed of 4.0 km/s. Find the thrust of the rocket
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