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An automobile can be considered to be mounted on four identical springs as far as vertical oscillations are concerned. The springsof a certain car are adjusted so that the oscillations have afrequency of 2.62 Hz. (a) What is the spring constant of each spring if the mass of the car is 1910 kgand the mass is evenly distributed over the springs? (b) What will be the oscillation frequency (in Hz) if five passengers, averaging 80.8 kg each, ride in the car with an even distribution of mass?
The hydrogen atom consists of a proton of mass 1.67*10^-27Kg and an orbiting electron of mass 9.11*10^-31kg. In one of it's orbits, the electron is 5.3*10^-11m from the proton. what is the mutual attractive gravitational force between the electron..
A 40-kg firl and an 8.4-kg sled are on the surface of a frozen lake, 15 m apart. By means of a rope the girl exerts a 5.2-N force on the sled, How far from the girl's intial position do they meet
A 2.1 kg block of wood rests on a long tabletop. A 22.7 g bullet moving horizontally with a speed of 168 m/s is shot into the block and sticks in it. obtain magnitude of frictional force between block and table
The moon is observed using a telescope that has an objective lens with a focal length of 3.0 m and an eyepiece with a focal length of 7.5 cm. What is the angular diameter of the moon
An alien spaceship traveling at 0.610c toward the Earth launches a landing craft. What speed do the Earth-based observers measure for the approaching landing craft
Two charges, -15 and +3.7 µC, are fixed in place and separated by 2.8 m. (a) At what spot along a line through the charges is the net electric field zero? Locate this spot relative to the positive charge. (Hint: The spot does not necessarily lie b..
A 120-V rms voltage at 60.0 Hz is applied across an inductor, capacitor and a 100-? resistor in series. what is the rms value of the current in this circuit
A piece of glass has a temperature of 80.6 ° C. Liquid that has a temperature of 43.0 ° C is poured over the glass, determine the specific heat capacity of the liquid
a mirror with a 30 radius of curvature produces an image that is 24 cm in front of the mirror and inverted. where is the object that produced the image located
A large 2.00×104 aquarium is supported by four wood posts (Douglas fir) at the corners, By how much is each post compressed by the weight of the aquarium
You melted a copper cylinder of volume 15.0 cm3 to fabricate a thin wire of diameter 0.02 mm. What will be the length of wire formed
The 500[m] Short Track speed skating Olympic world record is 39:937[sec] held by American JR Celski. Calculate JR's average speed in [miles=hr] during his record- setting performance.
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