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A 1.5-kg mass attached to spring with a force constant of 20.N/m oscillates on a horizontal, frictionless track. At t=0, the mass is released from rest at x=10.0 cm (That is, the spring is stretched by 10.00cm)Determine total energy of oscillating systems and express displacement as a function of time?
A. The rate of hydrogen fusion (proton-proton chain) near 10^7 K increases with temperature as T^5. If you raise the temperature of the hydrogen-burning core by 10 percent, how much does the hydrogen fusion energy increase?
A particle falls in Earth's gravity. The force of air resistance is F = ??v v(bold) where v(bold) is the velocity, v is the speed, Suppose the initial velocity is 0. How far has the object fallen when the speed is one-half the terminal speed
A cylindrical tank with a large diameter is filled with water to a depth D = 0.25 m. A hole of cross section A = 6.1 cm2 in the bottom of the tank allows water to drain out. What is the rate at which water flows out
On a frictionless table, a glob of clay of mass 0.42 kg strikes a bar of mass 1.98 kg perpendicularly at a point 0.39 m from the center of the bar and sticks to it. At what angular speed does the bar/clay system rotate about its center of mass afte..
The current indoor world record time in the 200-m race is 19.92 s, held by Frank Fredericks of Namibia (1996), Find the mean speed in meters per second corresponding to the record time for the 200-m event
Wile E. Coyote and the Roadrunner are fictional cartoon characters. The premise of the cartoon is that Wile E. Coyote unsucessfully tries to catch the very fast, What is the velocity of the combined system of two wagons
A highway engineer wants to design a horizontal turn so that a car with mass 623 kg can go 16.8 m/s around curve. what is the smallest radius she can make the turn
A stone is being accelerated vertically upward by a string attached to it. What is the acceleration of the stone at the top of its path
You are constructing a fiber optic cable. You wish to surround the core of the cable with a cladding material such that the critical angle to go from the core to the cladding is 73.0°
five resistors are connected to a battery with an emf of 12 V and internal resistance of 1 ohm. calculate the external resistance of the circuit
An air bubble has a volume of 1.25 cm3 when it is released by a submarine 100 m below the surface of a lake. What is the volume of the bubble when it reaches the surface
A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 24.0° below the horizontal, Find the length of time the car is in the air
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