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An airplane sends out a radar pulse of frequency4.5x1010Hz. The signal returns to the plane 0.6 ms later. What is the wavelength of the wave? How far is the object that reflected the wave?
a 2.00 kg block is pushed against a spring with negligible mass and force constant k 400 nm compressing it 0.220m.
An AC voltage source, with a peak output of 120V, results in dissipation of energy in a resistor at rate of 100W. What is the value of the resistance
A sample of an unknown substance appears to weigh 15.3 N in air and 9.16 N when immersed in a solvent with density 1.20 g/mL. Find the density and volume of the sample
A layer of oil with density 800 kg/m^3 floats on top of a volume of water with density 1,000 kg/m^3. What is the density of the block
a 730.0 n man carrying a 1.9 kg physics textbook stands at the center of a frozen pond of radius 10.0 m. he is unable
Two asteroids of equal mass collide with a glancing blow. Asteroid A, which was originally traveling at 40.0 m/s, is deflected 30.0? from its original direction, Find the speed of each asteroid after the collision
Calculate the magnetic moments that are possible for the n=3 level of Hydrogen, making use of the quantization of angular momentum. You may neglect the existence of spin. Compare this with the Bohr prediction for n=3.
during an earthquake a tall building sways back and forth every 6.0 seconds. the top moves a maximum 2.4m from
A particle of mass "m" moves in a straight line with retardation proportional to its displacement. Find the expression for loss of KE for any displacement "x"
A 100g aluminum (c=900J/kg C) calorimeter contains 250 g of water (c = 4186J/kg C). The two substances are in thermal equilibrium at 10 degrees C. Two metallic blocks are placed in the water.
A particle travels horizontally between two parallel walls separated by 18.4 m. It moves toward the opposing wall at a constant rate of 7.7 m/s. What will be its speed when it hits the opposing wall
question1one end of a horizontal string of linear density 6.9times10-4 is attached to a small-amplitude mechanical 150-
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