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A 400g mass on a spring has a speed of 95.4cm/s when it's displacement is 3.0cm and 71.4 cm/s when it's displacement is 6.0 cm what is the maximum speed of the mass?
A generating station is producing 1.90 106 W of power that is to be sent to a small town located 5.0 km away. Find the power used to heat the wires if the power is transmitted at 1050 V
A magnetic B field of strength 0.4 T is perpendicular to a loop with an area of 3 m2. If the area of the loop is reduced to zero in 0.7 s, what is the magnitude of the induced emf voltage
A model rocket rises with constant acceleration to the height of 3.7, at which point its speed is 25. what was the magnitude of the rocket's acceleration.
During basketball parctice Shane made a jump shot, releasing a0.60-kg basketball from his hands at a height of 2.0-m above thefloor with a speed of 7.6 m/s. How much energy was dissipated by air drag
A 690-W space heater is designed for operation in Germany, wherehousehold electric outlets supply 230 V (rms) service. What is thepower output of the heater when plugged into a 120-V (rms) outletin a house in the United States? Ignore the effects of ..
An athlete executing a long jump leaves the ground at a 35° angle and travels 8.30 m. If this speed were increased by just 4.0%, how much longer would the jump be
Does time dilation mean that time actually passes more slowly in moving reference frames or that it onlyseems to pass more slowly? Time in both systems passes in the samemanner.
An elastic cord vibrates with a frequency of 3.0 Hz when a .60 kg mass hangs from it. What would its grequency be if .38 kg hang from it?
A jet rises vertically, caring a load of concrete to make the foundation for a ski lift. A 35 kilogram bag of concrete is resting on a scale in the jet. what is the jet's acceleration
Red light of wavelength λ = 632.8 nm is incident on apair of slits whose separation is 0.70 mm. What is the separation of neighboring interference maxima on a screen 170 cm from theslits?( mm)
If the bullet leaves the gun at a speed of 280 m/s, by how much will it miss the target.
A disk is initially at rest undergoes constant angular acceleration. After accelerating for 3.1 s, te disk hasturned to an angle of 120 degrees. what was the angular acceleration of the disk
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