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500 kg satellite moves in a circular orbit of 4.8 x 106 m above the surface of the earth. What is the orbital speed of the satellite? The radius of the earth is 6.38 x 106 m (Use the satandard values of G and mass of the earth)
The upper end of the string wrapped around the cylinder below is held by a hand that is accelerated upward so that the center of mass of the cylinder does not move as the cylinder spins up. (c) Find the acceleration of the hand.
A 4.20–kg block is set into motion up an inclined plane with an initial speed of vi = 7.40 m/s (see figure below). The block comes to rest after traveling d = 3.00 m along the plane, which is inclined at an angle of ? = 30.0° to the horizontal.
voltage amplifier stages having the characteristics show in the following table are available. the signal source has
A 30-06 bullet has a mass of 0.010 kg. If the average force on the bullet is 7200 N, what is the bullet's average acceleration?
A soccer ball is kicked with an initial horizontal velocity of 19.0 m/s and an initial vertical velocity of 13.0 m/s. How far from where it was kicked will the ball land
A thin film of oil (n = 1.30) is located on smooth, wet pavement. When viewed perpendicular to the pavement, How thick is the oil film
A cyclist starts from rest and coasts down a 6.5? hill. The mass of the cyclist plus bicycle is 95kg. The cyclist has traveled 270m. What was the net work done by gravity on the cyclist
In a Carnot cycle the area for each transformation corresponds to the following work: (a) isothermal expansion: 31,165 J, (b) adiabatic expansion: 21,517 J, (c) isothermal compression: 24,282 J, (d) adiabatic compression: 21,517 J. Calculate (1) the ..
A current of 7.93 A in a solenoid of length 14.2 cm creates a 0.327-T magnetic field at the center of the solenoid. How many turns does this solenoid contain
An airplane can be made invisible to radar by coating the plane with a thin layer of an antireflective material. How many dark fringes are observed when 600 nm light illuminates the slides from directly above
If a positron (a positively charged particle with the mass of the electron) and a proton go through the same potential difference, By what factor is the wavelength shorter
A current of 0.307 A through your chest can send your heart into fibrillation, ruining the normal rhythm of heartbeat and disrupting the flow of blood (and thus oxygen) to your brain.
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