AnnMous AnnMous

01-05-2019
Physics

contestada

A child pushes a toy car down a hill. The child has a mass of 20 kg. The car has a mass of 1.6 kg and a speed of 7.4 m/s2. When the car has a gravitational potential energy of 30 J, what is the mechanical energy of the car?

Respuesta :

mohisbird mohisbird

01-05-2019

Answer:

The answer is 73.8 J

Explanation:

Answer Link

Otras preguntas

Does the neutron have a charge? explain your answer.

A number c divide by 6 is at least 28

A science geek brews tea at 195 ∘F, and observes that the temperature T(t) of the tea after t minutes is changing at the rate of T′(t)=−5e−0.04t ∘F/min. What is

I need help with this I can’t fail this semester......plz help me

whats 20% out of 85.00

People in the United States tend to be monochronic, meaning they view time in a relaxed way. Question 3 options: True False

-6x+14<-28 and 3x+28<25

Give at least 3 reasons why viruses are considered non-living and therefore NOT classified into the Linnaean system of life.

Hi i was wondering if you can help me with this 4x+8<4(x-9) please help me solve this and help me show the work I don’t remember how to do this

i do not understand this stuff. help me pass geometry. i need your help