What is 1960 in scientific notation

A wrecking ball has a mass of 650 kg. it swings from a cable that is 21 m long. the centripetal force on the ball is 56 n. what is the tangential speed of the wrecking ball?

Which of the following is the correct SI unit to use in measuring the mass of a boulder?

Consider a mixture of air and gasoline vapor in a cylinder with a piston and an original volume of 42.5 cm³. The combustion of this mixture releases 925 J of energy. What volume will the gas expand to against a constant external pressure of 1.

A force that pushes or pulls is known as O A. an expected force. B. a reaction force. OC. an applied force. a positive force.

1. Which of the graphs correctly displays the positions of the motorcycle and car as functions of time? 2. How long does it take from the moment when the motorcycle starts to accelerate until it catches up with the car? In other words, find t2-t1 3.

Salt water has greater density than fresh water. A boat floats in both fresh water and in salt 12) water. Where is the buoyant force greater on the boat?

A 1000-kg space probe is motionless in space. to start moving, its main engine is fired for 5 s during which time it ejects exhaust gases at 5000 m/s. at the end of this process it is moving at 20 m/s. the approximate mass of the ejected gas is:

In the fishbowl, the glass, water, rocks, and plastic plants are in thermal equilibrium. This situation means the temperature of the rocks is? F. If the water is 75 degrees

An archer shoots an arrow at a 75.0 m distant target; the bullâs-eye of the target is at same height as the release height of the arrow. (a) at what angle must the arrow be released to hit the bullâs-eye if its initial speed is 35.

Which of the following is considered a contact forces?1) the force between two magnets. 2) the gravitational pull of a planet. 3) friction between an object and air. 4) the force between two charged particles.