A4-kg block is connected by means of a massless rope to a 2-kg block as shown in the figure. complete the following statement: if the 4-kg block is to begin sliding, the coefficient of static friction between the 4-kg block and the surface must be

The summit of chimborazo, in ecuador, which is at a distance of about 6,384 km from the earth’s center. the bottom of the mariana trench, in the western pacific ocean, which is nearly 6,370 km from the center of the earth. on the surface of earth on the equator line.

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?

5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.