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A truck is traveling at 11.1 m/s down a hill when the brakes on all four wheels lock. The hill makes an angle of 10.0° with respect to the horizontal. The coefficient of kinetic friction between the tires and the road is 0.725. How far does the truck skid before coming to a stop?
A 5 kg ball is thrown upward with an initial speed of 30 meters per second. Suppose there is a constant air resistance of 25N opposing the motion during its entire up and down path. How long will it take to get to the highest point in its path? How h..
A chair of weight 135 lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of = 38 directed at an angle of 42 below the horizontal and the chair slides along the floor.
a generator uses a coil that has 116 turns and a 0.455 t magnetic field. the frequency of this generator is 70.0 hz and
An unbanked circular highway curve on level ground makes aturn of 90 degrees. What is the minimum length of the curve in miles
The number of radioactive nuclei in a particular sample decreases to one-eighth of the original amount in 21 days. What is the half-life of the these nuclei
A small, square loop carries a 38 Amp current. The on-axis magnetic field strength 48cm from the loop is 7.1 nT. What is the edge length of the square
a microscope for viewing blood cells has an objective with a focal length of 0.50 cm and an eyepiece with a focal
A cylinder contains 2.25 mol of helium gas at 21.0°C. Assume that the helium behaves like an ideal gas. What is the average kinetic energy per molecule
An alloy is made of 30% gold, 20% silver and iron. The specific heats of gold, silver and iron are 0.0308, 0.056 and 0.107 cal/go C, respectively. Calculate the specific heat of the alloy
five boxes each having weight 100 n are stacked up. the bottom box is the fifths from the top. what is the magnitude of
the decay constant of radon is .181day. a sample of radon contains 6.00x108 radon atoms. how many atoms are left after
Three resistors of 40 ohms, 60 ohms and 100 ohms connected on a close circuit with 200 Volt source (assume ideal circuit). With Resistors connected in Parallel: determine the voltage drop across each resistor
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