What is the change in internal energy if 60 J of heat are added to a system

and the system does 40 J of work on its surroundings? Use AU = Q-W.

Which claim about the forces acting on the horse must be true? Choose 1 answer: Choose 1 answer: (Choice A) A There is not enough information. (Choice B) B There is no net force on the horse. (Choice C) C There is a net force on the horse.

Given that the electric potential is 7.3*10-2 V higher outside the cell than inside the cell, and that the cell membrane is 0.10 μm thick, calculate the work that must be done (in joules) to move one sodium ion from inside the cell to outside.

What is the rate of heat conduction (in W) through the 3.50 cm thick fur of a large animal having a 1.70 m2 surface area? Assume that the animal's skin temperature is 33.0°C, that the air temperature is - 5.

Which of the following do you calculate what are your divided the total distance travelled by the total travel time

Explain at least three ways trees assist in keeping high water quality?

A group of lions is chasing a zebra. The lions are most likely responding to which kind of stimulus

A ray diagram is shown What does e, represent? index of refraction index of reflection angle of incidence angle of refraction Mark this and retum Submit Save and Exit

Which renewable resource could become a nonrenewable resource if used faster than Earth's ability to replenish its supply? A. water B. manganese C. sunlight D. wind

Which rule for assigning oxidation numbers is correct Hydrogen is usually - 1. Oxygen is usually - 2. Apure group 1 element is + 1. Amonatomic ion is 0.

What word means to move from one place to another