A sailboat moves north for a distance of 10.00 km when blown by a wind 30° east of south with a force of 5.00 * 104 N. How much work was done by the wind?

Energy that does not involve the large-scale motion or the position of objects in a system is called a. potential energy. b. mechanical energy. c. nonmechanical energy. d. conserved energy.

A meter stick is hung from a string tied at the 25cm mark. A 0.50-kg object is hung From the zero end of the meter stick, and the meterstick is balanced horizontally. What is the mass of the meterstick? (a) 0.25kg, (b) 0.5kg (c) 0.75kg (d) 1.

Consider only the observed patterns of motion in the solar system. Scientifically, which of the following possible conclusions is justified from the patterns of motion alone?

A crate is dragged 4.0m along a rough floor with a constant velocity by a worker applying a force of 400N to a rope at an angle of 30∘ to the horizontal.

What does a fire burn a hole right in the middle of the chair?

A conductor, with outer surface labelled a, contains a cavity, inner surface b. In this cavity there is a conducting sphere of radius r, and surface c. The sphere carries a charge of 1 C, while the conductor a charge of 2 C.

In a frictionless environment, which energy stays the same? 1. Kinetic Energy 2. Potential Energy 3. Internal Energy 4. Total Mechanical Energy

In what order do the earth, sun, and moon line up in a totla solar eclipse

17. Ice has a water. albedo than land or O A. similar O B. opposite O c. higher O D. lower

When you put your hands on a cold object like a glass of ice water your hands become?