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A block rests on a horizontal surface, and the coefficient of static friction between the block and the surface is 0.418. The surface begins to move back and forth in the horizontal direction, vibrating in SHM with a constant amplitude of 10.8 cm but a gradually increasing frequency. Find the frequency at which the block begins to slide on the surface.
The lab experiment is repeated with the same two glass plates but with a different human hair. Calculate the diameter of the hair
Water is contained in a closed, rigid, 0.25 m3 tank at an initial pressure of 5 bar and a quality of 60%. Heat transfer occurs until the tank contains only saturated vapor. Determine the final mass of vapor in the tank, in kg, and the final pressu..
A rope exerts a constant horizontal force of 250N to pull a 60 Kg crate across the floor.
Explain what is the current in the cell during this period? Assume that the gold ions carry one elementary unit of positive charge.
What minimum constant acceleration does this need if the aircraft is to be airborne after a takeoff run of 250 m.
A car has its 0.45m long radio antenna oriented vertically upward and is traveling at highway speeds of 70 mph. Calculate the range of induced emf on the antenna
A near-sighted person might correct his vision by wearing diverging lenses with focal length f = -45cm, Use ray tracing to determine the location of the image
returns the shot with the ball traveling horizontally at 40 m/s in the opposite direction. Illustrate what is the impulse delivered to the ball by the tennis racquet?
3 point charges are placed on the x-y plane: a +50.0 nC charge at the origin, a -50.0 nC charge on the x-axis at 10.0 cm, Find the total electric force on the +150 nC charge due to the other two
A water pipe having a 2.96 cm inside diameter carries water into the basement of a house at a speed of 0.804 m/s, find water pressure and speed at the second floor
Find an action to decrease the rise time of pulses passing through an amplifier.
A race car has a mass of 718 kg. It starts from rest and travels 45.0 m in 3.0 s. The car is uniformly accelerated throughout the entire time. What net force is exerted on it.
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