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A monochromatic beam of light of wavelength 720 nm is incident normally on a diffraction grating with 4,000 lines/cm. What is the angle for the first order maximum?
A rocket of mass kg is in flight. Its thrust is directed at an angle of 60 degrees above the horizontal and has a magnitude of. Find the magnitude and direction of the rockets acceleration.
A 1 kg block of Al is heated at atmospheric pressure so that its temperature increases from 22.0 degrees C to 40.0 degrees C. calculate The work done by the Al block
A ball leaves a table with an initial horizontal velocity of 2.4 m/s. The height of the table is adjustable. What is the horizontal distance between the two landing locations of the ball
An object is located 8.00 cm from a converging lens that has a focal length of 10.0 cm. The height of the object is 0.67 cm. What is the height hi of the image
A brick hangs from a string attached to the ceiling. When a horizontal force of 15 N is applied to the brick, What is the mass of the brick
If the bar has mass of 200g, a length of 15 cm, and th magnetic field has a magnitude of 0.2T, what must be the minimum current(direction and magnitude) to lift the bar
A 1.0--tall vertical tube is filled with 20o water. A tuning fork vibrating at 574 is held just over the top of the tube as the water is slowly drained from the bottom.
A 80-kg driver can decrease his rotation rate in a flip from an initial rate of 3.0rev/s to a final rate of 1 rev in 2 sec by straightening his body. find his final moment of inertia, then find his initial moment of inertia
A standing wave of frequency 3.03 Hz is set up on a string 2.6 m long with nodes at both ends and in the center
A copper (Young's modulus 1.1 x 1011 N/m2) cylinder and a brass (Young's modulus 9.0 x 1010 N/m2) cylinder are stacked end to end, Find the amount by which the length of the stack decreases
Two parallel conducting plates with the small gap of 1.0 cm are charged oppositely each other. What is the acceleration of the electron
A 10000 N car comes to a bridge during a storm and finds the bridge washed out. The 750N driver must get to the other side, What is the speed of the car just before it lands safely on the other side
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