The amount of energy needed to raise the temperature of a sample 1°c is called a. heat capacity
b. specific heat capacity
c. calorie

May someone explain how to do this question?

Identify the type of synthetic material used in each object

Question 11 of 13 (1 point) jump to question: a stairway, ladder, or ramp must be present in excavations in which of the following situations? a. all trenches must have access/egress b. the trench is more than 15 feet wide but only 1 ½ feet deep c. the trench is more than 4 feet deep and the devices must be within 25 feet of all workers