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A uniform board is leaning against a smooth vertical wall. The board is at an angle above the horizontal ground. The coefficient of static friction between the ground and the lower end of the board is 0.440. Find the smallest value for the angle , such that the lower end of the board does not slide along the ground.
A worker pushes horizontally on a large crate with a force of 297 N, and the crate is moved 4.8 m. How much work was done.
wo small metallic spheres, each of mass m = 0.220 g, are suspended as pendulums by light strings of length L, How long are the strings
You shine violet light through a diffraction grating (200 lines/cm) on a screen 2.0 m from the grating. The width of the light beam is 0.15 mm. How many slits will the light pass through
A suitcase is pulled by a tether that makes a 60 degree angle with the horizontal. what is the magnitude of the pull
However, the current begins to decrease as the resistive element warms up. When the toaster reaches its final operating temperature, the current has dropped to 1.53 A.
Two physical pendulums (not simple pendulums) are made from meter sticks that are suspended from the ceiling at one end. Determine the period of the metal pendulum
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 18.0 cm, Find the electric field just outside the paint layer
A 380 turn solenoid of length 38.0 cm and radius 2.80 cm carries a current of 4.90 A. find the magnetic field strength inside the coil
A freight train has a mass of 2 multiplied by 107-kg. If the locomotive can exert a constant pull of 12.50 multiplied by 105-N, how long would it take to enhancement the speed of the train from rest to 85.00 km/h.
An ideal gas is taken through a quasi-static process described by P = alphaV2, How much work is done on the expanding gas in this process
An electron is released from rest at the negative plate of a parallel plate capacitor. How fast is the electron moving just before it reaches the positive plate
Imagine a very long, uniform wire that has a linear mass density of 0 . 0012 kg / m, What is the magnitude of the current in the wire that keeps it levitated just above the ground
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