What force is required to accelerate a body with a mass of 15 kilograms at a rate of 8 m/s 2?

a) 23 n
b) 23kg
c) 120 n
d) 1.875 kg

Which type of basaltic lava flow has a fairly smooth

Which of the following is the main energy source for the sun? a. fission of hydrogen b. fusion of hydrogen c. fusion of helium d. fission of iron

Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)