11-04-2019
Physics

contestada

What is the change in internal energy if 20 J of heat is released from a system and the system does 50 J of work on the surroundings?
A.-80 J
B.-20 J
C.80 J
D.20 J

Respuesta :

jackspetici585 jackspetici585

18-04-2019

Answer:

C. 80 J

Explanation:

dU = dq + w

dU = -20 J + (-60 J) = -80 J

Answer Link

Otras preguntas

Solve for x. Triangle length 18 then 14 with 90 degree vertical and x is angled from length 18

Triangles ABC and DEC are similar. Side DE is 1.8 feet, side EC is 4 feet, and side BE is 0.8 foot. right triangle ABC with segment DE drawn so that point D is

If logical flaws exist, identify the flaw in the following argument: "According to the most recent statistics from the Centers for Disease Control, West Vir

Find the surface area of the cylinder. Round your answer to the nearest tenth. A cylinder with diameter of 8 millimeters and height of 12.2 millimeters.

Xavier is 55 years old. Overall, he is healthy except he does have some difficulty urinating. When he visited his doctor for an annual exam, the doctor performe

A trapezoid has an area of 56 square kilometers. One base is 2.4 kilometers long. The height measures 10 kilometers. What is the length of the other base? kilom

Which set of ordered pairs represents a function

I forgot my password how do I reset it on brainly?

Thabo states that Y=5x 10 is correct is Thabo correct is Thabo correct show calculation

Identify relevant and complex healthcare ethical dilemma facing APRNs. Eloquently Conduct an in-depth exploration of the literature on the ethical dilemma selec