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From a height of 35.5m , a 1.50kg bird dives (from rest) into a small fish tank containing 53.5kg of water.
A) What is the maximum rise in temperature of the water if the bird gives it all of its mechanical energy? (In Celsius)
It is proposed that future space stations create an artificial gravity by rotating. Suppose a space station is constructed as a 1600-m-diameter cylinder, What rotation period will provide "normal" gravity
you need to store 25J of energy in the magnetic field of a solenoid. The solenoid hass 100 circular turns of diameter 5.0cm, What is the energy density inside the solenoid
A 240 kV power transmission line carrying 500 A is hung from grounded metal towers by ceramic insulators, each having a 1.20, Calculate the power dissipated by 100 of them.
Suppose 0.0450kg of steam (at 100.°C) is added to 0.450kg of water (initially at 20.5°C), Find the final temperature of the water after equilibrium is reached
A cylinder contains a piston on each side of which is one kilomole of an ideal gas. The walls of the cylinder are diathermal, What is the change in the Helmholtz potential
Explain how much force must you exert to keep the pole motionless and horizontal?
A parachutist and her parachuting equipment have the combined mass of 121 kg. Her terminal velocity is 5.30 m/s with the parachute open. Her parachute has a cross-sectional area of 35.80 m^2. The density of air at that altitude is 1.23kg/m^3. What is..
A golf ball strikes a hard, smooth floor at an angle of 30 ° and, as the drawing shows, rebounds at the same angle. The mass of the ball is 0.047 kg, its speed is 45 m/s just before and after striking the floor. What is the magnitude of the impuls..
A laser with wavelength 650 nm is incident on a single slit with width 10 mm. A screen is placed 1 m beyond the slit. How far apart will the first dark bands on either side of the central maximum be?
What is the car's maximum speed on an incline. A fire hose held near the ground shoots water at a speed of 5.4 m/s, At what angle(s) should the nozzle point in order that water land 2 m away.
slides 145m before coming to a halt. Illustrate what is the coefficient of friction between the skies and the snow?
Two ants race across a table 73cm. long. One travels at 4.18cm/s and the other at 3cm/s. When the first one crosses finish line, how far behind is the second one.
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