Heat/ specific heat problems
= aleeseah hammock
0.005 kg of copper was heated from 20°c to 80°c. how much energy was used to heat
cu? (specific heat capacity of cu is 385 j/kg °c)
m = 0.005kg
f =80°c
= 20°c
2= ?
= 385 5/kg°c

How many meters will a car travel if its speed is 45 m/s in an interval of 11 seconds? question 2 options: a) 450 meters b) 495 meters c) 4.09 meters d) 498 meters

Can you receive a shock severe enough to prevent you from releasing the wire from an ordinary outlet with dry hands? a. no b. yes explain

Arailroad car collides with and sticks to an identical railroad car that is initially at rest. after the collision, the total kinetic energy of the two cars is a) the same as before. b) half as much as before. c) one third as much as before. d) one fourth as much as before. e) twice as much as before.