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A block of mass M=10kg is acted on by an applied forceF1 directed at 30degrees above the horizontal. The blockslides on a surface with μk=0.20 and starting fromrest, achieves a speed of 4m/s after sliding a distance d=2m. Whatis the acceleration of the block? What is the magnitude ofF1? If the force F1, is now removed, how much farther will the block slide?
A 2.05 cm tall object is placed 30.0 cm to the left of aconverging lens with a focal length f1 =18.9 cm. How tall is the final image of the object
Two boats are heading away from shore. Boat 1 heads due north at a speed of 3.2 m/srelative to the shore. Relative to boat 1, boat 2 is moving 40°north of east at a speed of 1.5 m/s.
Two small plastic balls hang from threads of negligible mass. Each ball has a mass of 0.170 g and a charge of magnitude q. Find the magnitude of the charge on the balls
A 5-kg projectile is fired over level ground with a velocity of 200m/s at an angle of 25? above the horizontal. Just before it hits the ground its speed is 150m/s.Over the entire trip the change in the internal energy of the projectile and air is:
A nickel has a mass of about 5 grams. If all of this mass could be converted to energy, how many Hiroshima sized bombs would this be
A 100-W driveway light bulb is on 10 hours per day. Assuming thepower company charges 10 cents for each kilowatt-hour of electricity used, estimate the annual cost to operate the bulb.
a garden hose with a diameter of 0.63in. has water flowingin with a speed of 0.78m/s and a pressure of 1.2 atmosphere. estimate the speed of water in the nozzle
A 1 165.0 kg car traveling initially with a speed of 25.000 m/s in an easterly direction crashes into the back of a 9 100.0 kg truck moving in the same direction at 20.000 m/s. The velocity of the car right after the collision is 18.000 m/s to the..
question1two gerbils run in place with a linear speed of 0.60 on an exercise wheel that is twisted like a hoop. find
You are standing on a sheet of ice that covers the football stadium parking lot in Buffalo; there is negligible friction between your feet and the ice. calculate with what speed do you and the ball move afterwards
On wet pavement, the coefficient of kinetic friction may be only 0.25. How fast should you drive on wet pavement
A solid disk rotates in the horizontal plane at an angular velocity of 0.049 rad/s with respect to an axis perpendicular to the disk at its center. what is the angular velocity of the disk
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