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Suppose a force F(t)=3.00N/S^2 t^2 - 2.00 Nis exerted on an object with a mass of 20.0 grams and an initial velocity of50.0 m/s, in the positive x direction. Use the impulse-momentum theorem to find the object’s velocity after 2.00 s.
two particles with electric charges q and 3q are separated by a distance of 2.4 m.a if q 3.7 c what is the electric
which of the following statements about the speed and acceleration of the cart just before the counterweight hits the
A 1.00 V potential difference is maintained across a 9.0 resistor for a period of 14.0 s, What total charge passes through the wire in this time interval
A 2.0 cm thick bar of soap is floating on a water surface so that 1.3 cm of the bar is underwater. What is the depth of the oil layer when the top of the soap is just level with the upper surface of the oil
A softball of mass 0.220 kg that is moving with a speed of 8.5m/s collides head-on and elastically with another ball initially atrest. compute the velocity of the target ball after the collision
suppose that we have a mixture of n2 g and o2 g of unknown composition whose total pressure is 385 torr. if all the
A magnifying glass has a focal length of 8cm. How close to an object do you need to place the magnifying glass, What type of image is this and what is its magnification
A student sees a newspaper ad for an apartment that has 1365 square feet (ft2) of floor space. How many square meters of area are there
A bowling ball (m = 7.2 kg, r = 0.11 m) and a billiard ball (m =0.38 kg, r = 0.028 m) may each be treated as uniform spheres. Whatis the magnitude of the maximum gravitational force that each canexert on the other?
Two identical masses are in a hemispherical bowl of radius R. One block is sitting at the bottom and the other is at the top. how high will each of them rise
An ideal transformer steps down 120 volts and the 2630 turn secondary supplies 12 amperes. what is the ratio of output power to input power
oppositely charged parallel plates are separated by 4.67 mm. a potential difference of 600 v exists between the
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