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The label on a candy bar says 440 Calories. Assuming a typical efficiency for energy use by the body, if a 73 person were to use the energy in this candy bar to climb stairs, how high could she go?
An AC voltage with an amplitude of 129 V is applied to a series combination of a 163 ?F capacitor, a 121 mH inductor, and a 21.9 ? resistor. Calculate the power factor at this frequency
A small bag of sand is suspended by a string of length L=1.2m. A bullet of mass m=8g, moving with initial speed vi = 600m/s in the horizontal direction, Determine the mass of the sand bag
Two small spheres hang in equilibrium at the bottom ends of threads, 40.0 cm long, Find the distance between the centers of the spheres
A sledge loaded with bricks has a total mass of 17.1 kg and is pulled at constant speed by a rope inclined at 19.9° above the horizontal. What is the mechanical energy lost due to friction
A travelling at a speed of 15 m/s slams on the breaks locking the wheels of his car, What is the speed of the vehicle after 2 seconds have passed
q1. a krypton laser produces the cylindrical red laser beam 2.0mm in diameter with 2.0w of power. what is the light
A ball is rolling down a ramp. When it passes a particular point, you determine that the ball is traveling at an angular speed of 12.0 rad/s, Determine the magnitude of the balls angular acceleration
The nucleus of a helium atom contains two protons. In a simple model of this nucleus, What is the electric potential energy of the two protons
A particle whose mass is 6.0 grams and whose charge is 5 nC is released from rest when it is 20 cm from a second particle of charge 8 C. Find the magnitude of the particle's initial acceleration
Two lightbulbs operate on the same potential difference. Bulb A has four times the power output of bulb B. What is the ratio of the current in bulb A to the current in bulb B?
A long, straight wire runs along the axis of the solenoid, carrying a current of 15. Find out the magnitude of the net magnetic field a radial distance of 0.80 from the straight wire.
An ice machine converts 10 degree celsius water to 0 degree celsius ice. The ice machine has a COP of 3 and consumes elec
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