Which statement best defines specific heat? (a) the amount of heat required to increase the temperature of 1 mol of a substance by 1 °c.(b) the amount of heat required to increase the temperature of a specific object, such as a calorimeter, by 1 °c.(c) the amount of heat required to increase the temperature of 1 l of a substance by 1 °c.(d) the amount of heat required to increase the temperature of 1 g of a substance by 1 °c.

Thomas his older brothers, who own a junk yard, on the weekends to earn extra money. he likes to them push broken-down cars to the back of the junk yard because it makes him feel strong. last saturday, they pushed three cars with different weights, and he noticed he used different amounts of force for each one. the cars were the following weights: white car: 2,700 kg red car: 1,500 kg blue car: 2,100 kg think about how much force is needed to move each car. which correctly lists the cars in order from the most to least amount of force needed to move them? a) white, blue, red b) blue, red, white c) red, white, blue d) white, red, blue

What can you increase the strength of an electromagnet by

What happens when the vapor pressure of a liquid is equal to the external pressure?