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You are researching personal watercraft (PWC) safety. These vehicles have a well known safety issue in which the rider loses stearing control when there is no thrust from the engine. You want to know for what distance the rider loses control when the machine loses thrust at top speed. The particular PWC you are testing weighs 585 lbs (has mass 265 kg) and has a top speed of 8.0 × 101 mph (36 m/s). It takes 2.0 × 101 s for the watercraft to slow to a safe 2.25 mph (1 m/s). What is the distance covered in that time? Ignore air resistance.
Light from a helium-neon laser (lamda=633nm) is incident on a single slit. What is the largest slit width
An electron is constrained to the central axis of a ring of charge 1 coulomb and of radius 1 meter. Find the frequency of oscillation of the electron in Hertz
The hunter uses a small powerboat that moves at a maximum speed of 9.5 km/h with respect to the water. Illustrate what is the minimum time necessary for crossing?
A motorboat is pointed due south, and its motor gives the boat a constant speed of 5.00 m/s through still water. Find the magnitude and direction of the boat's total velocity
A small ball rolls horizontally off the edge of a tabletop that is 1.06 m high. how long was the ball in the air
The construction of a flat rectangular roof (5.15 m × 7.44 m) allows it to withstand a maximum net outward force of of 2.33 × 104 N. At what wind speed will this roof blow outward
A simple of helium gas occupies 5 liters at 22degree C and a gauge pressure of 200,000 pascals. What is the mass of the gas
Suppose you were to disconnnect the battery (without losing any of the charge on the plates) and then remove the dielectric medium. What would be the new voltage across the plates
A block of wood has a density of 0.50 g/cm3 and a mass of 1.500 kg. What is the volume of oil that the wood displaces
A car is traveling at a constant speed of 38.8m/s on a highway. At the instant this car passes an entrance ramp, a second car enters the highway from the ramp. The second car starts from rest and has constant acceleration. What acceleration must it..
A bar is used to lift a 100 kg block of concrete. The pivot is 1.00 m from the block. Find the mechanical advantage
The random noise level of a buzzing mosquito is 32dB and that heard in a typical classroom is 71dB. How many mosquitos are required to make a noise level equivalent to that heard ina typical classroom
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