A hill is 200 m long and makes an angle of 12 with the ...

[jace]

A hill is 200 m long and makes an angle of 12 with the horizontal. As a 50-kg jogger runs up the hill, how much work does gravity do on the jogger?
 a. 98,000 J
  c. 20,000 J
  b. -20,000 J
  d. zero

Question 2

In an isochoric process where the pressure increases from to , does the internal energy of the system increase or decrease and does the temperature increase or decrease?
 a. The internal energy increases and the temperature decreases.
  b. The internal energy increases and the temperature increases.
  c. The internal energy decreases and the temperature decreases.
  d. The internal energy decreases and the temperature increases.

[polinasid]

Answer to Question 1

B

Answer to Question 2

B

[jace]

Thank you!

[polinasid]

Always glad to help...