A45-year-old woman wants to increase her physical activity to the meet the general guidelines recommended by the united states department of agriculture and the american college of sports medicine. which of the following routines would meet the recommendations? a. 1 hour a week of bicycling b. 1 hour a week of tennis c. 1 hour and 15 minutes a week of golfing d. 1 hour and 15 minutes a week of swimming

At what point the certain object feels zero garvitational force between earth and the moon. take the required information from the book.required: distance away from earth or moon

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.

Amajor difference radio waves, visible light, and gamma rays is the of the photons, which results in different photon frequencies and wavelengths