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A bridge is constructed of a material that is known to expand 0.1 cm for eeach meter in length when subjected to a temperature increase of 10 C. The bridge is measured on a winter day at -10 C and found to be 350 meters long. How much wil the bridge have expanded if it is measured on a summer day at 35 C?
Bronco Brown is mowing his lawn. He applies a force F along the handle of the lawnmower as shown. Bronco moves the mower at constant velocity. What is the magnitude of the resistance force acting horizontally on the mower
assume the roller coaster (h1 = 37 m, h2 = 13 m, h3 = 30) passes point A with a speed of 3.10 m/s. If the average force of friction is equal to one third of its weight, with what speed will it reach point B? The distance traveled is 55.0 m.
Consider a 619-N weight is being held by two cables. The left hand cable has a tension of T2 and makes an angle of ?2 with the ceiling. What is the tension of the left hand cable
A 603.7-W space heater is designed for operation in Germany, where household electrical outlets supply 230 V (rms) service. What is the power output of the heater
A rock is thrown downward into a well that is 8.90 deep. If the splash is heard 1.20 seconds later, what was the initial speed of the rock? Take the speed of sound in the air to be 343 m/s.
Prove that Wien's displacement law for? max requires that E=hv in the Planck radiation law. (Please do not give me links or a one line solution). Thanks.
a soccer ball is kicked simultaneously by bryan and anthony. bryon kicks with 700 N force to the west while anthony kicks with 800 N force to the north. calculate the net force acting on the ball
A proton traveling 3.0 E 6 m/s enters half way in a capacitor and travels 2.00 E -3 meters before crashing into the bottom plate, What is the voltage applied to the capacitor from the battery
An open train car, with a mass of 2150 kg, coasts along a horizontal track at the speed 2.43 m/s. What is the car's speed after the loading is completed
A cylindrical storage tank has a radius of 1.34 m. When filled to a height of 3.74 m, What is the density of the solvent
a pelican flying along a horizontal path drops a fish from a height of 4.7 m. the fish travels 7.7 m horizontally
The hydraulic lift in a service station is capable of raising cars with a mass up to 2000kg. calculate the diameter of the driving piston if the lifting is to be accomplished with a force not to exceed 100N
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