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(a) What is the escape speed on a spherical asteroid whose radius is 804 km and whose gravitational acceleration at the surface is 0.943 m/s2?
(b) How far (in km) from the surface will a particle go if it leaves the asteroid's surface with a radial speed of 897 m/s?
(c) With what speed will an object hit the asteroid if it is dropped from 1390 km above the surface?
You are to build a box whose height is 0.280 times its length. In order for the box to have a given volume while using a minimum amount of cardboard, what should be the ratio of the width of the box to its length.
On a cool morning, while the temperature is 12.0 deg Celsius, you measure the pressure in your car tires to be 20psi. After driving 40.0 mi on the freeway, the temperature of your tires is 56deg Celsius. What pressure will your tire gauge now show..
What is the magnitude of the force that maintains circular motion acting on puck.
The mass of a string is 1.00 10-3 kg, and it is stretched so the tension in it is 120 N. What is the length of the string
The catapult on an aircraft carrier can take an aircraft from 0 to 216 mph in 8 seconds, at which time the aircraft launches
q1. it is 140 cm from your eyes to your toes. youre standing 186 cm in front of a tall mirror. how far is it from your
A 4.50 kg counterweight is attached to a light cord, which is wound around a spool. The spool is a uniform solid cylinder of radius 6.00 cm and mass 1.80 kg. What is the net torque on the system about the point O
Three forces are applied to an object. Force F1 has a magnitude of 20.3 newtons (20.3 N) and is directed 30.0° to the left of the +y axis.
a 5.0*10^2 N laod is lifted 6.0 m with a pulley. the force exerted on the pulley rope is 165 N and the efficiency is 65 %. how far is the rope pulled
A potter's wheel -- a thick stone disk of radius 0.500 m and mass 120 kg -- is freely rotating at 50.0 rev/min. Find the effective coefficient of kinetic friction between the wheel and the rag
a square loop of wire of side L = 0.25m and resistance R = 0.2 ohms. A constant magnetic field B1 points through the left half of the loop in the negative z direction, What is rate of change in flux through the loop
A source emits sound uniformly in all directions. There are no reflections of the sound. At the distance r1 from the source the sound is 3.9 dB louder than it is at a distance r2 from the source. What is the ratio r1/r2.
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