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The mass of Mars is 640x10^23 kg and its radius is 337x10^6 m. (G =6.67*10^-11 Nm^2/kg^2)
a) Calculate the acceleration of gravity at the surface of Mars.
b) Calculate the orbital period for a surface-skimming orbit.
C) Calculate the escape velocity for Mars.
A turbine in an electric power plant rotates at 3600 rpm. Discover its angular speed in radians/second, and decide the linear speed of a point 72cm from the axis of rotation. The power plant shuts down, and the turbine coast to a halt in 590s. If the..
A 0.750 kg ball falls directly down onto concrete, hitting it with a speed of 12.0 m/s and rebounding directly upward with a speed of 3.00 m/s. What is the impulse on the concrete
Travelling at the speed of 14.10 m/s, driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of kinetic friction between the tires and the road is 0.650. What is the speed of automobile after 1.130 s have elapsed..
A rocket is used to place a synchronous satellite in orbit about the earth. what is the orbital speed of the satellite in orbit
A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.843 rad/s. You, with a mass of 71.9 kg, estimate the total angular momentum of the system
A small button placed on a horizontal rotating platform with diameter 0.316 m will revolve with the platform when it is brought up to a rotational speed of 39.0 rev/min, How far from the axis can the button be placed
A wire encloses an irregularly shapedsurface that is symmetric about the z-axis and lies in thexz-plane. A 2A current flows through the wire. What is the area it encloses
The second person, on the opposite side of the lock, pulls at an angle of 45o. Illustrate with what force should the second person pull so that the net force on the raft is in the forward direction?
Suppose that a disk rotates through two revolutions in 4.2 seconds. What is its displacement in radians in this time
Water flowing through a garden hose of diameter 2.79 cm fills a 24.0-L bucket in 1.30 min. What is the speed of the water leaving the end of the hose
A small glass bead charged to 6.9nC is in the plane that bisects a thin, uniformly charged, 10-cm-long glass rod, What is the total charge on the rod
At the factory, a noon whistle is sounding with the frequency of 464 Hz. As a car travelling at 76 km/h approaches the factory, driver hears the whistle at frequency fi. After driving past the factory, the driver hears frequency ff. What is the chang..
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