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The centers of a 7.0kg lead ball and a 140g lead ball are separated by 13cm .
A) What gravitational force does each exert on the other?
B) What is the ratio of this gravitational force to the weight of the 140g ball?
What is the velocity of observer B relative to observer A . A diver shines a light up to surface of a flat glass-bottomed boat at an angle of 36 relative to the normal.
The driver of a 1250 kg car, initially traveling at 10.1 m/s, applies the brakes, bringing the car to rest in a distance of 25.0 m
The coefficients of friction for plastic on wood are μs = 0.50 and μk = 0.40. How much horizontal force would you want to apply to a 4.0-lb plastic calculator to start it moving from rest.
A cannon ball of mass 10 kg is launched at its melting point with an initial velocity of 100 m/s. If all of its kinetic energy is converted to heat energy, causing the cannon ball to completely melt but not increase in temperature, what is the lat..
A red laser from the physics lab is marked as producing 632.8-nm light. When light from this laser falls on two closely spaced slits, What is the wavelength of light produced by the pointer
The centripetal and tangential accelerations are equal
An object with a mass of 27 g displaces 306.6 ml of water when it is completely immersed. What is the buoyant force on the mass
at what height above the earth is the acceleration due to gravity 10% of its value at the surface, find the speed of a satellite orbiting at that height?
What is the magnitude of the normal force that each brake pad applies to the rim . find the length of the meterstick as measured in frame S1 according to classical physics. Reply in units of m.
What must be the magnifying power of the eyepiece if the total magnification of the specimen is 100X
Two infinite long wires are parallel to one another and are 5.0 cm apart. Both have current passing through them in the same direction. What is the resulting force on the 1.0 A wire
person walks 25.0° north of east for 3-km. How far would another person walk due north and due east to arrive at the equal location?
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