1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
andre [41]
3 years ago
8

If a system absorbs heat and also does work on its surroundings its energy

Physics
1 answer:
VashaNatasha [74]3 years ago
7 0
This is, I think, about heat engines and the first law of thermo ?Hot reservoir supplies heat to the system at a high temperature. System does work.System rejects some heat to a cold reservoir at a low temperature.That's a word description of a thermo block diagram. And I think it refers to the "steady state". Seems reasonable that the system would have to warm up (car engines, eg), during which process the (internal ?) energy would presumably rise. In the steady state, however, the energy will presumably be constant. If it continued to rise ... the thing would overheat ????
You might be interested in
What is the process called when earth's surface is broken down into smaller pieces​
fiasKO [112]
You are LOVED and a Child of JESUS come back he has open arms God bless
6 0
2 years ago
A charge of 8.4 × 10–4 C moves at an angle of 35° to a magnetic field that has a field strength of 6.7 × 10–3 T.
sineoko [7]

Answer:10842.33m/s

Explanation:

F=qvBsine

V=f/(qBsine)

V=(3.5×10^-2)÷(8.4×10^-4×6.7×10^-3×sin35)

V=10842.33m/s

5 0
3 years ago
Two water jets are emerging from a vessel at a height of 50 centimeters and 100 centimeters. If their horizontal velocities at t
givi [52]
For t1:

t1 = square root of 2h1 / g = square root of 2 * 0.5 / 9.8 = 0.319 sec

For t2:

t2 = sqaure root of 2h2 / g = square root of 2 * 1.0 / 9.8 = 0.451 sec

Wherein:
t = time(s) for the vertical movement
h= height
g = gravity (using the standard 9.8 m/sec measurement)

d1 = 1*0.319 = 0.319 m
d2 = 0.5 * 0.451 = 0.225 m

Where:

d = hor. distance

ratio = d1:d2
= 0.319 : 0.225
=3.19 : 2.25

The answer is 3.19 : 2.25
8 0
3 years ago
Read 2 more answers
On a distance-time graph, time is shown on the y-axis.<br> A) True<br> B) False
Artist 52 [7]

Answer:

false : In distance time graph,time is shown on the x -axis

7 0
2 years ago
How is momentum conserved in a newtons cradle <br><br> when one steel ball hits the other
arsen [322]

In Newton's Cradle experiment we know that all cradles of same mass and identical to each other

Now we know that when two identical objects collide elastically then they interchange their velocity

So here we have same illustration

When Newton pulls up a cradle and release it will move hit another cradle which is at rest

Due to elastic collision between them first cradle comes to rest and another cradle will move ahead with same speed this process remains the same and one by one all cradle hit another.

So at the last the cradle at the end will move off with the same speed as the first cradle will hit with the speed.

So in this experiment the cradle at the last end will move off at same distance away from the right end as that of left end we pull the cradle.

So here we can say that in horizontal direction when all cradles are colliding each other there is no external force on the system so momentum is conserved and they all will move off with same speed and hence we observe the above condition.

8 0
2 years ago
Other questions:
  • An elementary particle of mass m completely absorbs a photon, after which its mass is 1.01m. (a) what was the energy of the inco
    12·1 answer
  • Look at the map of the United States. Which of the following would be a reasonable estimate for the amount of the U.S. coastline
    7·2 answers
  • How to find answers to webassign questions online
    6·1 answer
  • An atom has a charge of 1+. If the atoms nucleus caintains 23 protons, the atom must have how many electrons
    10·1 answer
  • Which conditions are usually the effect of a low air pressure system?
    11·2 answers
  • If Jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, ________ is being
    7·2 answers
  • If<br> an object has a volume of 2.5 mL and a mass of 10 g, what is the density of the object?
    11·2 answers
  • What is a major risk for heart disease that you cannot control A obesity b heredity c smoking d physical inactivity
    13·1 answer
  • On the periodic table , the vertical columns that extend down the periodic table are called ?
    14·1 answer
  • 5<br> b. What is the molecular shape of the molecule? (3 points)
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!