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A 10720 kg sailboat is moving through the waters of the Atlantic. Initially, the boat is traveling at 35 mph, 33 degrees East of North. After 4 minutes, the boat is travelng at 25 mph, 27 degrees West of North. Three forces are acting on the boat,
• Force due to resistance from the water: 10 N, 20 degrees S of W •Force from an auxiliary motor: 7 N, 31 degrees E of N
• Force due to the wind: Fwind What is the net force (Fnet) acting on the boat? ? N ? degrees N of E What is the force of the wind (Fwind) on the boat? ? N ? degrees N of E
calculate the total mechanical energy of the glider at any point in its motion. Calculate the maximum speed of glider.
A Mercedes-Benz 300SL (m = 1750 kg) is parked on a road that rises 10° above the horizontal, What is the static frictional force that the ground exerts on the tires
Find the electric field inside the cylinder
In one frame of reference(say H), two events occur at the same point in space, but are separated by a time interval of 100 nanoseconds
What is the charge on negative electrode. Find out the wavelength.
A wire, 24 m long, moves at 4.8 m/s perpendicularly through a 0.59 T magnetic field. What emf is induced in the wire
The minimum distance required to stop a car moving at 42.0 mi/h is 39.0 ft. What is the minimum stopping distance for the same car moving at 67.0 mi/h, assuming the similar rate of acceleration.
A black thin-walled cylindrical can, 10.0 cm in diameter and 20.0 cm tall is filled with water at 100°C and suspended in a 20°C room. Determine the initial rate of heat transfer due to radiation
An aquarium contains a 5 - cm layer of water ( n = 1.333) floating on top of carbon tetrachloride ( n = 1.461) what is the angle of refraction into the air
the supersonic aircraft concorde has a length of 61.5m when sitting on th ground on a typical day when the temperature is 15.0 degrees C. what is the temperature of the concordes skin in flight
An electric motor rotating a workshop grinding wheel at a rate of 9.90 x 10^1 rev/min is switched off. Assume the wheel has a constant negative angular acceleration of magnitude 1.70 rad/s2.
Battery-powered electricity is very expensive compared with that available from a wall receptacle. Estimate the cost per kWh of an alkaline D-cell
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