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A 6.25-kg block is sent up a ramp inclined at an angle θ = 36.5° from the horizontal. It is given an initial velocity v0 = 15.0 m/s up the ramp. Between the block and the ramp, the coefficient of kinetic friction is μk = 0.444 and the coefficient of static friction is μs = 0.790. How far up the ramp (in the direction along the ramp) does the block go before it comes to a stop?
The bullet penetrates into the block and stops due to itsfriction with the block. Calculate the total energy of the composite system at any timeafter the collision
Find out the constant force that must be exerted on him to bring him to rest in a distance of 1.2 m in a time interval of 0.20 s.opposite the fullback's direction of motion.
The volume of a monatomic ideal gas increases by a factor of 4 in an adiabatic expansion. Determine by what factor does its pressure change
the primary coil of a certain transformer has an inductance of 3.75 h and a resistance of 36.2 olms. if the primary
Two identical small insulating balls are suspended by separate 0.22-m threads that are attached to a common point on the ceiling. Each ball has a mass of 8.10 10-4 kg.
Two protons are moving directly toward one another. When they are very far apart, their initial speeds are 2.14 x 106 m/s. What is the distance of closest approach
the dome of a van de graff generator receives a charge of 2.0 x 10-4 c. find the strength of the electric field a
How long would it take a 750W electric heating plate to bring one liter of water to boil from 20 degrees celcius? If energy costs $0.15/kWhr, how much does it cost to boil the water?
A placekicker must kick a football form a point 36.0 (about 40 yards) from the goal. By how much does the ball clear or fall short of clearing the crossbar
question a 75kg student is standing atop a spring in an elevator that is accelerating upward at 3.0ms2 the spring
A charge of +5 C is located at the origin, and a charge of -20 C is located at x = 2 m, i.e., 2 m away from the origin on the x-axis. where along the x-axis in units of meters is the Coulomb force equal to zero
What is the frequency of a spring with spring constant 420 N/m that has attached a mass of 3.5 kg and initially displaced 0.25 meters. what is the maximum kinetic energy this mass obtains
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