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Two satellites are in circular obits about earth. one is 150 kmabove the surface, the other 160 km. A)which satellite has thelarger orbital period? B)which one has the greater speed?
A 60.0 kg crate is slid up an inclined ramp 2m long onto a platform 1.6 m above the floor level. A 452 N force, parallel to the ramp, is needed to slide the crate up the ramp at a constant speed. How much work is done in sliding the crate up the r..
A 16.0-? resistor, a 12.0-µF capacitor, and a 17.0-mH inductor are connected in series with a 155-V generator. At what frequency is the current a maximum
The crankshaft in a race car goes from rest to 3000 rpm in 2.0seconds. What is the crankshafts angular acceleration?
An electric motor rotating a workshop grinding wheel at a rate of 9.70 101 rev/min is switched off. How long does it take for the grinding wheel to stop
The objective lens of a certain refracting telescope has a diameter of 59.0 cm. find the minimum distance between two objects on the ground
A boat has a mass of 4710 kg. Its engines generate a drive force of 3610 N due west, What is the boat's acceleration, with correct sign
If astronauts could travel at v = 0.950c, we on Earth would say it takes (4.20 / 0.950) = 4.42 years to reach Alpha Centauri, 4.20 light-years away. How much time passes on the astronauts' clocks
A 1225 kg automobile starts from rest on a horizontal road and gains a speed of 83 km/h in 38 s. What is the average power required of the car during the 38 s interval
the electric field of a charge is 1.37e07 nc at a distance 16.3 cm and points away from the charge. what is the sign
An object is placed directly between a large planet and a star. Find the distance from the planet for which the net gravitational force exerted by the planet
A rectangular container measuring 20. cm 52 cm 73 cm is filled with water. What is the mass of this volume of water in kilograms and grams
An airplane pilot tries to fly directly east with a velocity of 800.0 km/h. what is the relative velocity of the airplane to the surface of the earth
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