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A sled traveling at a speed of 5.0 m/s slows to a stop 4.0 m fromthe point where its passenger rolled off. What is the magnitude of the horizontal net force that slows the 110 N sled?
The centers of a 12 kg lead ball and a 100 g lead ball are separated by 10 cm. What gravitational force does each exert on the other
An ac generator with a frequency of 1.54kHz and an rms voltage of 22.2V is connected in series with a 1.90k, What is the power factor for this circuit
On your first trip to Planet X you happen to take along a 215 mass, a long spring, a meter stick, and a stopwatch. You're curious about the free-fall acceleration on Planet X, What is the value of gravity
A rock climber throws a small first aid kit to another climber who is higher up the mountain. What is the vertical height between the two climbers
a block mass 15.92kg supported by a vertical massless cable is initially at rest. The block is then pulled upward with a constant acceleration of 2.11m/s^2. what is the net force acting on the mass
A red car and a green car, identical except for the color, move toward each other in adjacent lanes and parallel to an x axis. What is the initial velocity of the green car
Give four examples (two of each type) of optical devices which are best understood using either Geometric Optics or Physical Optics. Justify your examples.
An apple is placed 13.6 cm in front of a diverging lens with a focal length of magnitude 22.4 cm. What is the magnification of the image of the apple
You throw a 151 g ball straight up to a height of 43.0 m. Calculate the average force exerted by your hand while you are throwing it
a billiard ball ,moving at 75cm/s hits an identical ball initially at rest and glances off at 75degrees to the original direction with a speed of 30 cm/s
A conducting sphere of radius r1 = 0.29 m has a total charge of Q = 2.2 uC, What is the total charge on sphere two, Q2 in C
The drum of the photocopying machine in the problem above has a length of 48 cm and a diameter of 9 cm. What is the total charge on the drum
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