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A crane lifts a 2500-kg beam using a steel cable whose mass per unit length is 0.650 kg/m. What is the speed of transverse waves on this cable if the upward acceleration of the beam is a steady 3.00 m/s2?
An air conditioner draws 12 A at 220 V ac. The connecting cord is copper wire with a diameter of 1.450 mm. how much power does this air conditioner draw
A collapsible plastic bag contains a glucose solution. If the average gauge pressure in the vein is 13900 Pa, what must be the minimum height of the bag in order to infuse glucose into the vein? Assume that the specific gravity of the solution is ..
A transformer is to be used to provide power for a computer disk drive that needs 5.8 V (rms) instead of the 120 V (rms) from the wall outlet. determine the current in the primary
An object is in front of a converging lens (f = 0.370 m). The magnification of the lens is m = 3.60. Through what distance should the object be moved
A 6080 kg space probe moving nose-first toward Jupiter at 105 m/s relative to the Sun fires its rocket engine, ejecting 80.0 kg of exhaust at a speed of 253 m/s relative to the space probe. What is the final velocity of the probe?
while driving on the freeway at 110 kmh you pass a truck whose total length you estimate at 25 m a- .if it takes you
A wheel free to rotate about its axis that is not frictionless is initially at rest. A constant external torque of +52 N·m is applied to the wheel for 15 s, giving the wheel anangular velocity of +520 rev/min.
A 1400kg sedan goes through a wide intersection traveling from north to south when it is hit by a 2400kg SUV traveling from east to west. How fast was sedan traveling just before the collision
q1. if the accelerating plates are 1.60 apart and have a potential difference of 2.60times104 what is the magnitude of
A skier is gliding along at 3.0 m/s on horizontal, frictionless snow. He suddenly starts down a 10° incline. His speed at the bottom is 15 m/s. How long does it take him to reach the bottom
The central star of a planetary nebula emits ultraviolet light with wavelength 104nm, What is the first-order diffraction angle
Suppose that a standing wave on the flagpole gives rise to a sound wave of the same frequency. What is the lowest flagpole harmonic that the mouse can hear
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