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A delivery truck travels 30 blocks north, 20 blocks east, and 24 blocks south. Suppose the blocks are similar length.
Find the magnitude of its final displacement from origin?
Find the direction of its original displacement from origin?
A 41.0 mA current is carried by a uniformly wound air-core solenoid with 455 turns, a 10.0 mm diameter, and 13.0 cm length. Compute the magnetic field inside the solenoid
A stone is dropped from the top of a cliff. The splash it makeswhen striking the water below is heard 7.6 s later. How high is the cliff
The angular speed of a propeller on a boat increases with constantacceleration from 10.9 rad/s to 24.0 rad/s in 2.20 revolutions. What is the acceleration of the propeller
A step-down transformer (turns ratio = 1:6) is used with an electric train to reduce the voltage from the wall receptacle to a value needed to operate the train. What is the current in the primary coil
When ultraviolet light with a wavelength of 254 nm falls upon a clean metal surface, What is the photoelectric threshold wavelength for this metal
The spin cycles of a washing machine have two angular speeds, 437 rev/min and 641 rev/min. The internal diameter of the drum is 0.620 m. Find the laundry's maximum tangential speed
If the energy removed from an engine as heat during one cycle is3.4x102 J, how much energy should be added to the engine through one cycle in order for it to operate at 25 percent efficiency? Answer in units of J.
An electric dipole with dipole moment P=(3.24 i + 4.30 j)(1.56 x 10^-30 C*m) is in an electric field E=(4055 N/C) i, What is the potential energy of the electric dipole
A fish swimming in a horizontal plane has a velocity vi = (3.3i + 1.6j) m/s at a point in the ocean where the position relitive to a certian rock is ri = (10.5i - 3.9j) m. After the fish swims with a constant acceleration for 20.6 s, it's velocity..
A 150 g copper bowl contains 220 g of water, both at 20.0ºC. A very hot 300g copper cylinder is dropped into the water, What was the original temperature of the cylinder
The concepts for finding the change in length of a rod.
A spaceship has a length of 300m, measured in its own reference frame. It is traveling in the positive x direction at a speed of 0.8c relative to the earth. how long does this light pulse take to reach the tail
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