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A uniform cylindrical satellite has four tangential rockets. mass = 3600, radius = 4.0m, what is the required steady force of each rocket if the satellite is to reach 32 rpm in 5.0 min?
A wooden raft has a mass of 55 kg. When empty it floats in water (density 100 kg/m^3 with 64% of its volume submerged. What mass of sand can be put on the raft without it sinking
An object is moving in a circular path of radius 4.00 m. If the object moves through an angle of 30.0 degrees, then what is the tangential distance traveled by the object
The function y(x, t) = (25.0 cm) cos(?x - 26?t), with x in meters and t in seconds, describes a wave on a taut string. What is the transverse speed for a point on the string at an instant
Scientists want to place a 3800.0 kg satellite in orbit around Mars. They plan to have the satellite orbit at a speed of 2462.0 m/s in a perfectly circular orbit. What is the acceleration of the satellite in orbit
A car is travelling at 26 m/s when the driver spots a large pothole in road a distance 34 m ahead. She at once applies her brakes. If her acceleration is -7.5 m/s2, does she manage to stop before reaching the pothole.
It takes 2.80 s for a small ball with a mass of 0.060 kg released from rest from a tall building to reach the ground. Calculate the height from which the ball is released
A slab of material has parallel faces. One coincides with the xy-plane while the other is given by z=t. Find the volume and surface densities of bound charge
As the refrigerant passes through the compressor, heat transfer to the surrounding occurs at a rate of 0.32 kJ/s. Determine at steady state the power input to the compressor, in kW.
Consider a generator with a 300 turn coil on its armature and a uniform magnetic field of 4.6 T. The diameter of the coil is8.0 cm, In order to generate 385 VRMS, how fast do we need to rotate the coil
An astronaut weighs 92.5 kg on earth. While floating in space he pushes the side of his spaceship with a force of 150 N for .20 seconds. Find the change of momentum of the astronaut
A 600nm laser hits glass with an incident angle of 30°. If the glass has and index of refraction of 1.7, determine The velocity of light inside the glass
A police car has a 1000Hz siren. It is traveling at 35m/s on a day when the speed of sounds through air is 350m/s. What change of frequency does the observer hear
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