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A geostationary communications satellite orbits the earth directly above the equator at an altitude of 34800 . Calculate the time it takes for a signal to travel from a point on the equator to the satellite and back to the ground at another point on the equator exactly halfway around the earth. (See Appendix E in the textbook.)
You need to design an industrial turntable that is 50.5 cm in diameter and has a kinetic energy of 0.205 J when turning at 42.0 rpm, What must be the moment of inertia of the turntable about the rotation axis
A magnetic field is perpendicular to the plane of asingle-turn circular coil. The magnitude of the field is changing,so that an emf of 0.80V and a current of 3.2 A are induced in the coil.
A 500 gram mass is used as a pendulum bob so that itforms a pendulum that is 2.0000 metres long. How high is the pendulum bob above its originalposition?Draw a digram in which variables are clearly illustrated
An golf ball sits on the optical axis of a spherical mirror at a distance of 17 cm. A virtual image is formed a distance of 6 cm away from the mirror. What is the mirror's focal length (include sign if negative)
In a lightning bolt, a large amount of charge flows during a time of 2.1 x 10-3 s. How much charged has flowed during the lightning bolt?
An artificial satellite circling the Earth completes each orbit in 133 minutes. Find the altitude of the satellite
A water pipe is inclined 32.0° below the horizontal. The radius of the pipe at the upper end is 3.00 cm. If the gauge pressure at a point at the upper end is 0.117 atm, what is the gauge pressure at a point 2.65 m downstream, where the pipe has narro..
Consider a frictionless track. A block of mass m1=10.0kg is released from A, at a height h=17.0m. It makes a head-on elastic collision at B with a block of mass m2=22.0kg that is initially at rest. Calculate the maximum height to which m1 rises after..
A vertical spring with a spring constant of 480 N/m is mounted on the floor. From directly above the spring, that is unstrained, a 0.150 kg block is dropped from rest.
A small solid ball is released from rest while fully submerged in a liquid and then its kinetic energy is measured when it has moved 5 cm in the liquid. What is the density of the ball
A 1000kg truck is driving up a 10 degree slope. A 10g ornament hangs by a massless string from the rear-view mirror in truck.
If it takes you about 2 minutes to fill your 12 gal (or 0.48 m3) gas tank. Estimate the velocity of the gas as it leaves the nozzle
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