If the speed of an object is doubled, its kinetic energy will

1.increase

2.decrease.

3.remain the same

Janelle made a hypothesis bout the uneven temperatures inside her house during winter. she believes that 50% of the ducts are blocked and she plans to investigate. if she wants to prove her hypothesis using scientific processes what should she do next?

If element x has 99 protons how many electrons does it have

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?