Digestive juices in the stomach contain a. sulphuric acid b. hydrochloric acid c. acetic acid d. amino acid

Explain why electric current cannot exist if a current doesn't have a voltage source.

If the spring constant k of a pogo stick is 3500 n m and the weight of the person on the pogo stick is 700 n, how much is the spring in the botom of the pogo stick compressed?

An object with a mass of 1.5 kg changes its velocity from + 15 m/s to +22 m/s during a time interval of 3.5 seconds. what impulse was delivered to the objects?