Three point masses of 2kg each are located on the x-axis at the origin, at x=0.20m, and at x=0.50m. Find the center of mass of the system? 25. A 15g bullet traveling at 500m/s strikes an 0.8 kg block of wood that is balanced on the table edge 0.8m above the ground . If the bullet buries itself in the block. Find the distance D at which the block hits the floor?

A12-kg bag of groceries is tossed onto a table at 4.0 m/s and slides to a stop in 2.2 s . modify the equation fδt=δ (mv) to find the force of friction.

In which situation has the independent variable for the experiment been changed? check all that apply. changed from counting the number of duckweed at day 0 and day 14 to counting them every day changed from testing duckweed growth in beakers to testing duckweed growth in large outdoor tanks changed from testing the effect of ph on duckweed growth to testing the effect of light levels on duckweed growth changed from testing the effect of acid ph on duckweed growth to testing the effect of basic ph on duckweed growth

Aperson standing in a canoe exerts a force of 700 n to throw an anchor over the side. find the acceleration of the canoe if the total mass of the canoe and the person is 100 kg?