3.) A valuable antique chest is to be moved into a truck. The weight of the chest is 1400N. To get the chest from the ground onto the truck bed, which is 1.0 meters high, the movers must decide
what to do. Should they lift it straight up, or should they push it up their 4.0-meter-long ramp?
a. Find the work required to lift it straight up at a constant velocity.
b. find the work required to slide the chest of the frictionless ramp a distance of 4.0 m

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.

What is a possible result of higher air temperature caused by global warming

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.