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What is the annual petroleum consumption of the United States, and where does this petroleum originate? Include all sources supplying a significant fraction of the US consumption (5% or more).
Ship moving initially at 10.7 m/s due North, drifts due NE at the same speed. To correct the bearing, the captain accelerates the engine and turns the rudder NW. If the engines deliver a constant acceleration of 4.4 m/s2, how long will it take to a..
q1. an elevator cable can withstand a maximum tension of 19500n before breaking. the elevator has a mass of 480 kg and
How long must a 0.60-mm-diameter aluminumwire be to have a 0.50 A current when connected to the terminals ofa 1.5 V flashlight battery
Over a time interval of 1.92 years, the velocity of a planet orbiting a distant star reverses direction, changing from +22.2 km/s to -20.5 km/s. Find (a) the total change in the planet's velocity (in m/s) and (b) its average acceleration (in m/s2) du..
The inner and outer surfaces of a 5m x 6m brick wall of thickness 30 cm and thermal conductivity 0.69 W/(m x degree C) are maintained at temperatures of 20C and 5C. Determine the rate of heat transfer through the wall in W.
Two tiny conducting spheres are identical and carry charges of -21.4C and +51.0C. They are separated by a distance of 3.30 cm. (a) What is the magnitude of the force that each sphere experiences?
A newly discovered planet has a mean radius of 7380 km. A vehicle on the planet\'s surface is moving in the same direction as the planet\'s rotation, what is the period of the planet\'s rotation
A light commuter rail train usually accelerates at a rate of 2.15 m/s^2 and usually decelerates with a rate of 3.20 m/s^2, The train can stop in 10.5 seconds from its top speed in an emergency. How far would it travel during this braking period
A hydrometer is used to measure the specific gravity of liquids. For a sure liquid a hydrometer reading indicates a specific gravity of 1.15. What is the liquid's density and specific weight? State the answer in SI units.
A microwave oven with microwaves 12.2 cm long has a power output of 760 Watts. Find the number of photons emitted per second
In a historical movie, two knights on horseback start from rest 74 m apart and ride directly toward each other to do battle. How far from Sir George's starting point do the knights collide
A block of mass 10 kg is resting on a frictionless ramp. The ramp is free to slide on a horizontal, frictionless table and has a mass of 40 kg. What is the acceleration of the ramp
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