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A car is safely negotiating an unbaked circular turn at aspeed of 19.1 m/s. The maximum static friction force acts on thetires. Suddently a wet patch in the road reduces the max. staticfrictional force by a factor of three. if the cars it to contiuesafely around the curve, to what speed must the driver slow the car.
A 12 kg object oscillates at the end of a vertical spring that has a spring constant of 1.70 x10^4 N/m. The effect of air resistance is represented by the damping coefficient b = 3N•s/m. Find the time interval that elapses while the energy of the ..
A wooden raft has a mass of 65 kg. When empty it floats in water (density 1000 kg/m3) with 41percent of its volume submerged. What mass of sand can be put on the raft without it sinking.
speed of 39.0 m/s through a school zone, exceeding the posted speed limit. Find the distance required for the policeman to overtake the motorist
A charged particle of mass 8.39×10?4 kg starts from rest and accelerates through a potential difference of +25,000 V to reach a speed of 1240 m/s
A 65.5 kg firefighter slides down a pole while a constant frictional force of 300 N retards her motion. Find the maximum distance the spring is compressed
A five-bladed airplane propeller can be thought of as identical uniform rods protruding radially from its axis. what is its rotational kinetic energy
A beam of blue light of wavelength 500 nm has an intensity of 170 W/m^2, How many photoelectrons are emitted from the potassium plate per second
What is the minimum work needed to push a 800 -kg car 860m up along a 9.0 degree incline
If an enclosed volume of ideal has is heated, raising its temperature from 10 c to 20 c, by what factor does the pressure change
Calculate the volume of a rectangular prism with a length of 5.6 cm, a width of 2.1 cm, and a height of 6.6 cm
The intensity of sunlight that reaches Earths amosphere is 1400 W/m2. What is the intensity of sunlight
Near the surface of the Earth a block of mass M is sliding down an incline with angle thetha = 30degress, what maximum height H will the block reach
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