What is the reason behind the tail of a comet moving away from the Sun?
A The gravity of Jupiter pulls it away from the Sun.
The nucleus of the comet propels it away from the Sun.
C. The radiation pressure and solar wind propels it away from the Sun.
B.
D.
No valid hypothesis has been made yet.

If an object with an initial temperature of 300 k increases its temperature by 1°c every minute, by how many degrees fahrenheit will its temperature have increased in 10 minutes? (a) 6°f (b) 10°f (c) 18°f (d) 30°f

Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.

The ability to make things happen is also called a. heat b. force c. matter d. energy