Cake, battery, boiling water, a flying kite, a flower vase on top of a table Which of the items above have
a) Thermal energy
b) Kinetic energy
c) Gravitational potential energy
d) Chemical energy

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

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.

Why should the wavelength scale of spectroscope be calibrated