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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 car of mass 960 travels at a speed of 30 along the straight road. The driver sees a red traffic light ahead, and applies brakes. The coefficient of friction between the car tyres and the road is 0.88. Take the acceleration due to gravity to be 9.80..
from the top of a pole 4.8m about the ground, he was able to leave the pole with a speed of 4.82m/s at an angle of 7 degrees from vertical, find th total horizontal distance traveled for the vault
An R = 49.8 ? resistor is connected in series with a C = 12.1 ?F capacitor and a 105 Hz, 110 V source. Calculate the current in the circuit
A spring of force constant k=2.5*10^2 N/m is suspended form a rigid support. An object o mass 1.00 kg is attached to the uns How far below the starting point is equilibrium position for the object.
rob and dave run a 100-m race crossing the finish line in a dead heat both taking 10.0s. they each accelerate uniformly
Suppose the traffic light is hung so that the tensions T1 and T2 are both equal to 84.7 N. Find the new angles they make regarding the x axis. (By symmetry, these angles would be the same.)
The Earth can be approximated as a sphere of uniform density, rotating on its axis once a day. The mass of the Earth is 5.97×1024 kg, the radius of the Earth is 6.38×106 m, and the time of rotation for the Earth is 24.0 hrs.
A physical pendulum is made by drilling a hole through a uniform wooden disk of radius R a distance (alpha)*R from the disk's center. What must alpha be to miniumze the disk's period of oscillation
The jet accelerates uniformly, and during that time, the pendulum oscillates about the equilibrium position shown by the solid line, with D = 0.370 m. find the magnitude of the plane's acceleration.
A transformer on a pole near a factory steps the voltage down from 3600 V (rms) to 120 V (rms). determine the power delivered to the primary
Two projectiles are thrown with the same initial speed, one at an angle with respect to the level ground and the other at angle 90 degree. Both projectiles strike the ground at the equivalent distance from the projection point. Are both projectiles i..
What velocity would a proton need to circle Earth 1400 km above the magnetic equator, where Earth's magnetic field is directed horizontally north and has a magnitude of 4 x10-8 T .
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