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A286-kg motorcycle is accelerating up along a ramp that is inclined 29.5°above the horizontal. The propulsion force pushing the motorcycle up the ramp is 3178 N,and air resistance produces a force of 234 N that opposes the motion. Find the magnitude of the motorcycle's acceleration.
A truck is traveling at 13.1 m/s down a hill when the brakes on all four wheels lock. The hill makes an angle of 15 ° with respect to the horizontal. The coefficient of kinetic friction between the tires and the road is 0.815. How far does the ..
Write an expression for the torque required to rotate the cylinder surrounded by a fluid.
question the heat of fusion for thallium is 21 jg and its heat of vaporization is 795 jg. thalliums melting point is
The electric field between two identical but opposite charges, at seventh-fifteenth the distance from the negative charge to the positive charge, is 3.50 x 105 N/C, Evaluate what is the magnitude of each charge
a charge of q is located at the origin while an identical charge is located on the x axis at x 0.60 m. a third charge
Two friends enter the Boston marathon. The first friend runs at a constant speed of 0.500 m/s. The second friend holds a speed of 1.00 m/s. how many hours would he be waiting once he stops
a parallel-plate capacitor has plates with an area of 1.3times10-2m2 and a separation of 0.83mm. the space between the
A 90.0kN spaceship comes in for a vertical landing. From an initial speed of 1.00 km/s, it comes to rest in 1.50min with uniform acceleration. What braking force must its rockets provide
What average force is necessary to bring a 49.9-kg sled from rest to a speed of 3.1 m/s in a period of 19.9s? Assume frictionless ice. ___ N in the direction of the sled's motion
A 33 rpm phonograph record reaches its rated speed 1.8 s after it is turned on. What was the angular acceleration
A heavy meter stick has a rest mass of 1 kg. When the meter stick is thrown past you, you measure the mass to be 2kg. Assuming the meter stick is thrown horizontally, what would you measure its length to be?
A 150-? resistor is connected in series with a 0.250-H inductor. The voltage across the resistor is vR = (5.70 V)cos[(445 rad/s)t]. Determine the inductive reactance of the inductor
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