Which of the following is equal to an impulse of 9 units

Becky has a shower and uses 20,000g of water with a specific heat capacity of 4200J/KG. When the water is supplied with 336,000J of energy, it heats up to 50^c. What is the startig temperature of the water?

What is resistance? Difference between resistance and resistivity.

A 98 kilogram man is accelerating forward at a rate of 1.2 m/s2. What is the unbalanced force necessary to produce the movement?

Mass is the amount of matter in an object. Which statement is true?

Which of the following statements about language is true? a There is a direct relationship between a specific word and the object or idea it represents. b All the languages in the world are symbolic except for Asian languages.

High energy environments are most likely to contain which one of the following? a. large particles such as gravel b. silt-sized particles c. manganese nodules d. cosmogenous sediments e. clay-sized particles

Which description explains the flow of heat? from cold to hot from hot to cold from cool to warm from cold to warm

Stars set about how many minutes earlier each day? A. 8 B. 6 C. 4 D. 2

Which statement about polymers is true? 1. Polymers are substances that have relatively large molecules. 2. Oil and gas are the starting materials for making all polymers. 3. Fabrics such as cotton and silk are synthetic polymers. 4.

Can the world run out of carbon? Explain why you answered the way you did