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You do 9.5J of work to stretch a spring with k=210N/m, starting with the spring unstretched. How far does the spring stretch?
A 20 kg projectile is fired at an angle of 600 to the horizontal with an initial velocity of 1.6 x 102 m/s. What is the straight line displacement between the two fragments after they land
a radio wave, sent from mars to the earthwhen the two are closest to eachother, takes 3.03 minutes. calculate the distance between perihelion and aphelion for mars
An RLC circuit shown above with a peak voltage of 240 V, f = 60 Hz, R = 100 Kilo Ohms, L = 0.5 mH, C = 200 micro Farad. What is the (linear) resonant frequency of the circuit
One solenoid is centered inside another. The outer one has a length of 46.0cm and contains 6600 coils, Find the emf induced in the inner solenoid
A 2-kg block is initially at rest on a horizontal frictionless surface at x = O. What is the maximum kinetic energy of the block between x = 0 and x = 2 m
What is the wavelength of radio waves. An electron in a TV is accelerated toward the screen across a potential difference of 54.2kV. How much kinetic energy does the electron gain while accelerating.
A calorimeter contains 2000 grams of water at 0oc. a jet of stream at 100oc is passed through the water. What is the temperature of the water when 100 grams of steam have condensed in it.
A dentist uses a mirror to examine a tooth that is 0.75 cm in front of the mirror. The image of the tooth is formed 14.0 cm behind the mirror. Determine the magnification of the image
A major league catcher catches a fastball moving at 80.0mi/h and his hand and glove recoil 10.0 cm in bringing the ball to rest. If it took 0.00500s to bring the ball (with a mass of 300g ) to rest in the glove,
q1. youre driving down the highway late one night at 20 rm ms when a deer steps onto the road 35rm m in front of you.
A steel tank is completely filled with 3.00 m3 of ethanol when both the tank and the ethanol are at a temperature of 31.5?C. what additional volume of ethanol can be put into the tank
Two identical spaceships are traveling in the same direction. An observer on earth measures the first to have a speed .85c, What is the speed of the second spaceship
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