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A 1500 kg artificial satellite will appear to be stationary to anobserver on Earth if its period is exactly equal to Earth'srotation period, i.e one day. (a) What must the orbitalradius of such a satellite be? and (b) What will be its orbitalspeed?
A 2360{\rm kg} satellite used in a cellular telephone network is in a circular orbit at a height of 750{\rm km} above the surface of the earth. What is the gravitational force on the satellite
A 78.05kg fisherman is sitting in his 33.25kg fishing boat along with his 13.49kg tackle box. What is the recoil speed of the fisherman and his boat
A projectile is fired at v0 = 394.0 m/s at an angle of θ = 64.2o with respect to the horizontal, How far will the projectile travel in the horizontal direction, R
A spool of wire of mass 6.9 kg and radius 0.28 m is unwound under a constant wire tension 15 N. Assume the spool is a uniform solid cylinder that rolls without slipping. Find the friction force on the bottom of the spool
A 0.25-kg mass is hanging from a spring with spring constant 15 N/m. What is the resulting angular frequency of the oscillation
An oversimpliefied model of the hydrogen atom has the electron orbiting the nucleus's proton at a distance of approximately 5.29x10^-11 m. how much force is needed to keep the electron in a circular orbit
Three vectors have the same magnitude of 18 units. They make angles of ?, 2 times ? and 3 times ? with respect to the x axis, where ? = 14 o. What is the y-component of their vector sum
an asteroid has a mass of 3.66 x 1020 kg and a radius of 8.2 x 105 m. if a 25 kg mass is dropped from 10 m above the
A worker pushed a 27 kg block 7.6 m along a level floor at constant speed with a force directed 32° below the horizontal. What was the increase in thermal energy of the block-floor system?
a 25 microf capacitor charged to 4.2 kv and a second 50 microf capacitor charged to 6.3 kv are connected to each other
A sinusoidal wave travels along a string. The time for a particular point to move from maximum displacement to zero is 0.14 s. What are the (a) period and (b) frequency? (c) The wavelength is 2.5 m; what is the wave speed?
a train is traveling down a straight track at 27 ms when the engineer applies the brakes resulting in an acceleration
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