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
mr Goodwill [35]
3 years ago
11

By what means can the internal energy of a closed system increase?.

Physics
2 answers:
kirill115 [55]3 years ago
7 0

Answer:

when work is done on the system or heat comes into the system

Verizon [17]3 years ago
4 0

Answer:

if it becomes an open system or heat is added

Explanation:

You might be interested in
Convert 525 pounds to kilograms using dimensional analysis setup
kobusy [5.1K]
You can do it I believe in you
6 0
4 years ago
. A rope is being used to pull a mass of 10 kg vertically upward. Determine the tension on the rope, if starting from rest, the
telo118 [61]

\text{Given that,}\\\\\text{Mass, m =10 kg}\\\\\text{Time, t = 8 sec}\\\\\text{Velocity, v = 4~m/s}\\\\\text{When a body is moving upwards,}\\\\\text{Tension,}~ T=mg +ma\\\\~~~~~~~~~~~~~~~=mg+m\left(\dfrac{v-u}t \right)\\\\~~~~~~~~~~~~~~~=10(10)+10\left(\dfrac{4-0}8\right)\\\\~~~~~~~~~~~~~~~=100+10\left(\dfrac 12\right)\\\\~~~~~~~~~~~~~~~=100+5\\\\~~~~~~~~~~~~~~~=105~N

5 0
2 years ago
At what distance will a 80 W lightbulb have the same apparent brightness as a 120 W bulb viewed from a distance of 40 m
liq [111]

Answer:

32.6mm

Explanation:

Using area of a sphere(bulb) = 4πr²

So A is proportional to radius²

So the Energy will be proportional to r²

But 120/80 = 1.5 is the energy factor so

Using

1.5/d² = 1/r²

1.5/40²= 1/r^2

r = √( 40²/ 1.5)

r = 32.6m

4 0
3 years ago
The diameter of a 12-gauge copper wire is 0.081 in. The maximum safe current it can 17) carry (in order to prevent fire danger i
Soloha48 [4]

Answer:

0.44m/s

Explanation:

drift velocity=I/nAq

diameter 12 gauge

wire=0.081inches=0.081*2.5=0.2025cm radius=0.10125cm area=pi*R^2 =20/8.5*10^22*3.14*0.10125^2*10^-4*1.6*10^-19*

V = 0.44m/s

6 0
4 years ago
Why are male genitals outside the body?
BigorU [14]
Because if they were in the inside, then they would not be able to sexually reproduct and could not have offspring. 
7 0
3 years ago
Other questions:
  • A baseball is moving at a speed of 2.2\,\dfrac{\text{m}}{\text{s}}2.2 s m ​ 2, point, 2, space, start fraction, m, divided by, s
    9·1 answer
  • VTheStampy is this right and what do I do next?
    9·1 answer
  • A damped oscillator is released from rest with an initial displacement of 10.00 cm. At the end of the first complete oscillation
    11·1 answer
  • Based on the solubility chart, which of the listed salts is the most soluble at 25 °C?
    11·2 answers
  • How does speed affect momentum
    14·2 answers
  • What is the maximum number of f orbitals that are possible in a given shell?
    6·1 answer
  • Which part of the iceberg displaces water equal in weight to the buoyant force
    6·2 answers
  • A ground-fault circuit interrupter is a (an) _____. A)wire that provides an easier path for a current to take if a short circuit
    8·2 answers
  • What's a definition of caught​
    7·1 answer
  • What is the best way to determine levelness?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!