vaelriacb1767 vaelriacb1767

02-07-2017
Physics

contestada

An object lifted 10 meters gains 200 j of potential energy. if the same object is lifted 20 meters, its potential energy gain is

Respuesta :

15-07-2017

Ep1=mgh1
200J=m*9.81m/s2*10m
200J=m*98.1m2/s2
m=200J/(98.1m2/s2)
m=2.04kg
Ep2=mgh2
Ep2=2.04kg*9.81m2/s2*20m
Ep2=400J

Answer Link

Otras preguntas

How do I solve 39x-3y=21

A glass plate whose index of refraction is 1.57 is immersed in a liquid. The surface of the glass is inclined at an angle of 54° with the vertical. A horizontal

How do you write 625.31% as a decimal?

Determine if the expression wx2 is a polynomial or not. If it is a polynomial, state the type and degree of the polynomial.

A man (mass=68 kg) on a parachute is falling at terminal velocity (v=59 m/s) At which rate do the internal energy of the man and of the air around him increase

If you are convicted of drinking alcohol while you were driving, you will be fined ______ if it was your first offense.

Increased activity in the ________ during REM sleep may best explain why dream images are often accompanied by a strong emotional tone. pineal gland suprachiasm

I do not understand this. (-3 3/7) + 1/2

Scientists like Hermann Ebbinghaus, Jean Piaget, and Kurt Lewin paved the way for _____ by renewing interests in mental events such as perception, memory, and s

Apes are able to express and communicate emotion due to their highly developed _______. Olfactory senses. Brains, facial muscles, teeth, and grammatically corre