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A motor pulls a ski tow rope moving 10 skiers at a time (each 75kg) up a slope of 20 degrees at a constant 2m/sec speed. If the coefficient of friction is .1 between the skiers and the snow, how much work must the motor perform to pull them 200 meters along the slope AND what is the minimum power the motor must have to accomplish this?
A goose flying toward you at 11.4m/s emits a squawk, which you hear at 262Hz, Find the wavelength of the sound you hear
a particle is moving in the xy plane with constant acceleration. at t=0, it has a velocity of v=(4.00i-5.00j) m/s. At t=4.00 s, determine the acceleration of the particle (magnitude and direction)
The magnetic field has been measured to be horizontal everywhere along a rectangular path x = 22 cm long and y = 5 cm high. Along the bottom the average magnetic field B1 = 1.3 10-4 tesla, along the sides an average magnetic field B2 = 1.0 10-4 te..
imagine 1.0 stock tank barrel oil and 1000 scf gas that have been produced were somehow put back to reservoir at certain condition of pressure, what is the oil formation and solution gas oil ratio
What is the net electric force acting on particle.
A train has a speed of v = 66.5 km/h. If the acceleration experienced by the passengers is to be less than 0.35 g, find the smallest radius of curvature R acceptable for the track
An object with a charge of -4.4?C and a mass of 1.7×10?2kg experiences an upward electric force, If the electric charge on the object is doubled while its mass remains the same, find the direction and magnitude of its acceleration
An aluminum wire has a cross-sectional area of 2.70x 10^-6 m^2 and carries a current of 7.50 A. The mass density of aluminum is 2.70 g/cm^3. find the average speed of the electons in the wire.
When a wavelength is 300nm, its stopping potential is 1.10V. When it is changed to 200nm, the stopping potential is 3.06V. What value does this experiment yield for Planck's constant
Two equally charged particles, held 22.4 cm apart, are released from rest. The initial acceleration of the first particle is observed to be 4.0 m/s2 and that of the second particle is 6.0 m/s2. If the mass of the first particle is 3.40 x 10-7 kg, ..
A torque of 2.2 N.m is applied to a spherical shell of radius 0.25 m. what is the mass of the disk
A student records the temperature of the gas is as he increases the pressure inside the container and plots the data in the graph shown below, How many moles of gas are inside the container
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