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

Find the missing angle for the rest please thanks

will give brainlest please try to do it quick im doing a test

A line passing through the point (8,-4) and has a slope of - 3/4 in slope-intercept

Read and choose the correct option. Uso ________ para cubrir mi herida. (1 point) la etiqueta las gasas las pastillas el botiquín

Which equations define y as a nonlinear function of x? Select ALL that apply.

Pomóżcie potrzebne jak najszybciej się da proszę

How do coastal wetlands protect the inland systems from wind and waves caused by storms? A) Coastal wetland trees absorb the energy of storms. B) Coastal wetlan

The Latin term for providing services without payment is O Verdict O Pro bono O Plaintiff O Deposition

Find the scale factor.

List and explain 5 facts about the 1920's