How did humans decide how long a year should be

When nuclear fission occurs some mass is lost where does that mass go

Describe how the T Tauri star stage in the life of a low-mass star can lead to the formation of a Herbig-Haro (H-H) object.

Using the periodic table, determine which material is most likely to be a good insulator.

Wo stars that are bound together by gravity and orbit a common center of mass are known as A. constellations. B. binary stars. C. galaxies. D. meteoroids.

A 2700 Ohm resistor and electric circuit draws a current of 2.4 Milliamperes the total charge that passes through the resistor in 15 seconds is

According to a rule-of-thumb, every 5 seconds, between a lightning flash and the following thunder gives the distance to the flash in miles.

What should a free-body diagram look like for a skydiver that is still speeding up as he falls? There is an arrow up for air resistance and an arrow down for gravity. The arrows are the same length.

As a rocket moves farther and farther upward from the launch pad, what happens to the strength of Earth's gravitational field around the rocket? a. It gets weaker. b. It grows stronger. c. It remains constant.

Sully uses a battery and a coil of wire to create an electromagnet. Using the same materials, if he wants to increase the strength of his electromagnet, he must the number of loops in the coil of wire along its length.

How long does it take for light from a star that is 8 light years away to reach Earth? Question 7 options: 8 earth minutes 16 earth minutes 8 earth years 16 earth years