A plane designed for vertical takeoff has a mass of 7.7 Ã 103 kg. find the net work done on the plane as it accelerates upward at 1.4 m/s2 through a distance of 31.0 m after starting from rest. answer in units of j.

A rocket, initially at rest on the ground, accelerates straight upward from rest with constant (net) acceleration 39.2 m/s^2. The acceleration period lasts for time 10.0 ss until the fuel is exhausted. After that, the rocket is in free fall.

Carbon dioxide is added to the atmosphere: a) as a by-product of solar energy b) from the burning of fossil fuels c) from hydroelectric power plants and dams d) as a waste product from nuclear power plants

A cosmic ray electron moves at 6.5 x 106 m/s perpendicular to the Earth's magnetic field at an altitude where field strength is 1.24 10-5 T. What is the radius (in meters) of the circular path the electron follows? The charge of an electron is 1.

Compare the atomic models developed by Thomson and Rutherford.

A regulation basketball has a 32 cm diameter and may be approximated as a thin spherical shell. How long will it take a basketball starting from rest to roll without slipping 4.8 m down an incline that makes an angle of 39.

A container can be made from steel [β = 36 * 10-6 (C°) - 1] or lead [β = 87 * 10-6 (C°) - 1]. A liquid is poured into the container, filling it to the brim.

Which solution has the greatest number of hydroxide ions? baking soda, pH = 9 milk, pH = 6 tomato juice, pH = 3.5 vinegar, pH = 2A substance is boiled repeatedly and stirred, but the solute never mixes with the solvent.

Part of the suns energy that reaches the Earths surface is absorbed by land and water as heat. The earths surface then releases heat back into the atmosphere Which of the following is true about this solar energy that is absorbed and released by

When Emeka was first training his dog, Smooches, to heel he would give Smooches a treat when she stayed close during walks. Now Smooches stays right by Emeka's side, even when she is not on her leash. In this case, a.

What must vectors have in common in order to be added?