Physics
Physics, 18.03.2021 03:00, mattgraham366

7. Through the process of doing work, energy can move between the environment and the system as the result of
a. forces
C. momentum
b. matter
d. impulse
8. If the environment does work on the system, the quantity of work is
a. negative
C. Zero
b. positive
d. undetermined
9. If the environment does work on the system, the energy of the system
a. decreases
b. increases
10. If the system does work on the environment the end sy of the system
a. decreases
b. increases
11. In the equation W - Fd, Fd holds only for
c. remains the same
d. cannot be determined
C. is undetermined
d. remains the same
forces exerted in the direction of displacement
C. gravitational
d. positive
a. constant
b. frictional
12. In the equation W = Fd cos , angle is the angle between F and the
a X-axis
b. y. axis
c. direction of the displacement
d. vertical direction

answer
Answers: 3

Other questions on the subject: Physics

image
Physics, 22.06.2019 01:30, kaylin28
Astone is dropped with no initial velocity from the top of a cliff and hits the ground a time of 3.9 s later. what is the height of the cliff, in units of meters? you may assume that air resistance is negligible. give the answer as a positive number question 15 a figure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 200 o 20.9 12000 o 3.33
Answers: 2
image
Physics, 22.06.2019 05:30, ecob35
What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?
Answers: 3
image
Physics, 22.06.2019 07:00, luisr0754
Critical mass is the of material required to produce a chain reaction. a.) minimum amount b.) atomic mass c.) precise amount d.) maximum amount
Answers: 1
image
Physics, 22.06.2019 15:20, mjwaple57
Acarpenter builds an exterior house wall with a layer of wood 2.9 cm thick on the outside and a layer of styrofoam insulation 2.3 cm thick on the inside wall surface. the wood has k=0.080w/(m⋅k), and the styrofoam has k= 0.010 w/(m⋅k). the interior surface temperature is 19.0 ∘c , and the exterior surface temperature is -15.0 ∘c . a.)what is the temperature at the plane where the wood meets the styrofoam? celsius b.)what is the rate of heat flow per square meter through this wall? /m^2
Answers: 2
Do you know the correct answer?
7. Through the process of doing work, energy can move between the environment and the system as the...

Questions in other subjects: