A shopper pushes a 5.32 kg grocery cart with a 12.7 N force directed at -28.7 below horizontal. A friction force of 8.33 N pushes back against the motion. What is the acceleration of the cart in m/s^2

Can you think of a way a rock unit with an older fossil could be above a rock until with a younger fossil? describe the scenario.

A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive