171060332 171060332

02-04-2021
Physics

contestada

What is the mass of an object moving at a speed of 9.0 m/s with a kinetic energy of 200 J?

Group of answer choices

2.5 kg

4.9 kg

44 kg

1.2 kg

0.81 kg

Respuesta :

shaunahollland shaunahollland

02-04-2021

Ek= 1/2mv²
200=1/2 m(9 ²)
200=1/2(81)m
200=40.5m
m=200/40.5
m=4.93kg

Answer: 4.9 kg (second option)

Answer Link

Otras preguntas

Which example is the best for propaganda? A. A picture of a leader vacationing at a beach B. A leader giving a speech at local high school graduation C. A pictu

What is groundwater?

All citizen 18 years old can vote

When did d-day take place and which three allied countries contributed the most troops for the landings

What is 5 25/27 as an improper fraction?

Simplify for answer to question

Which process is responsible for moving carbon from a producer/herbivore/carnivore/decomposer back into the atmosphere? Question 3 options: PHOTOSYNTHESIS: wher

will I have access to an online person in two hours

Is expelled a transitive or intransitive verb?

Which of the following best explains the U.S Supreme Court decision in Bush v. Gore? (3 points) A.) It decided that Florida’s first recount should resume in all