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A particular satellite was placed in a circular orbit about 158 mi above Earth. (a) Determine the orbital speed of the satellite. m/s (b) Determine the time required for one complete revolution.
A person decides to use an old pair of eyeglasses to make someoptical instruments. What is the maximum angular magnificationhe can produce in a telescope
The rotating sprocket tip at the end of the guide bar has a radius of 0.0343 m. Find the angular speed of the sprocket tip
A small motor draws a current of 1.75 A from a 120.0 V line. It costs $35.81 to operate the motor for 4.00 hrs at $0.0600 /kWh, What is the power output of the motor
An athlete performs a Romanian deadlift with 197 kg bar from floor to hips (0.75 m) in 2.1 seconds. How much mechanical power is generated from the athlete
What is acceleration due to gravity
q1. a 240 g block hangs from a spring with spring constant 8.0cm. at the block is 23cm below the equilibrium point and
A 330-g air track cart on a horizontal air track is attached to a string that goes over a pulley with a moment of inertia of 5.00 x 10-6 kg?m2 and a radius of 1.35 cm. Write Newton's second law equation for each of the three objects
A 34.4-kg crate rests on a horizontal floor, and a 71.8-kg person is standing on the crate. Determine the magnitude of the normal force that the floor exerts on the crate
The electric motor in a toy train requires a voltage of 3.1V .Find the ratio of turns on the primary coil to turns on the secondary coil in a transformer that will step the 110V household voltage down to 3.1V .
Under ambient conditions (T=300K), the intrinsic electron concentration of silicon is 1.45*10^10 cm^-3. Calculate the band gap energy of the semiconductor
The collision between a hammer and a nail can be considered to be approximately elastic. Estimate the kinetic energy acquired by a 12-g nail
A simple pendulum is constructed from a mass of 2 kg and a massless string of length 3.5 m. The pendulum is pulled 5.5 cm to the right and released to start the motion. What is the period of the pendulum
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