Saturday
August 2, 2014

Posts by Merlin


Total # Posts: 10

History
Thnk you alot :)

History
Thabk You Ms. Sue

History
pre columbian to 1877 In the North American colonies

History
what was the development of the slavery system?

Human geography
Identify the principles of human geography

physics
A 85 kg rock climber first climbs 50 m up to the top of a quarry, then descends 75 m from the top to the bottom of the quarry. If the initial height is the reference level, find the potential energy of the system (the climber plus Earth) when the climber is at the top. Find th...

physics
An engine moves a boat through the water at a constant speed of 16 m/s. The engine must exert a force of 7.0 103 N to balance the force that water exerts against the hull. What power does the engine develop? answer:___ kW

physics
A 187 W motor will lift a load at the rate (speed) of 6.58 cm/s. How great a load can the motor lift at this rate?

physics
Wayne pulls a 305 N sled along a snowy path using a rope that makes a 45.0° angle with the ground. Wayne pulls with a force of 42.3 N. The sled moves 16 m in 3.0 s. What power does Wayne produce?

physics
An 850 N sled is pulled a distance of 180 m. The task requires 1.20 104 J of work and is done by pulling on a rope with a force of 125 N. At what angle is the rope held? answer: ____ ° (with the horizontal)

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