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
almond37 [142]
4 years ago
11

A laptop computer uses 78.0 W of power. If it runs for 10.0 minutes how much energy does it use?

Physics
1 answer:
lakkis [162]4 years ago
4 0
Power consumed = P = 78.0 W
Time taken = t = 10 minutes
Energy consumed = E = ?

The power, energy and time are related by the following equation:

P = E / t 

Using the values, we get

78 = E/t

So,

E = 780

This means, 780 Joules of energy was used during the 10 minutes
You might be interested in
The closer the charged particles, the... the electrostatic force.
Anna35 [415]

Answer:

please give me brain list and follow

Explanation:

Therefore, if the distance between the two charges is doubled, the attraction or repulsion becomes weaker, decreasing to one-fourth of the original value. If the charges come 10 times closer, the size of the force increases by a factor of 100. The size of the force is proportional to the value of each charge.

4 0
3 years ago
If 51.9 C of charge are transferred in a specific lightning strike and the potential difference is ∆V = 10.93 MV, how much energ
MA_775_DIABLO [31]

Quantity of charge unloaded = 51.9 Coulombs

Potential difference = 10.93 megavolts = 1.093 x 10⁷ volts

1 volt = 1 joule per coulomb

1.093 x 10⁷ volts = 1.093 x 10⁷ joules per coulomb

Energy = (1.093 x 10⁷ J/C) x (51.9 C)

Energy = 567.267 megaJoules

That's <em>5.67 x 10⁸ Joules</em> .

==> My wife's blow-dryer is marked 1260 watts.

If the energy in this lightning strike could be collected, bottled, stored, and used as needed, it could run my wife's blow-dryer for 125 hours.  That would save us more than $30 on our electric bill !

8 0
3 years ago
Suppose a bicycle was coasting on a level surface, and there was no friction. What would happen to the bicycle?
vfiekz [6]

If there is no friction and no horizontal force acting on the bicycle, then the bicycle keeps rolling at a constant speed in a straight line, until the cows come home, Dante's Inferno freezes over, and the POTUS accepts some responsibility for his words, actions, and consequences.

5 0
4 years ago
Read 2 more answers
Which variable is directly proportional to frequency?
zhuklara [117]

For this case we have by definition:

v = λf

We observe that we have a linear relationship, where λ is the constant of proportionality.

We have then:

  • <em>v: speed of propagation of the wave </em>
  • <em>λ: wavelength </em>
  • <em>f: frequency </em>

Answer:

The variable that is directly proportional to the frequency is λ, the wavelength.

4 0
4 years ago
Read 2 more answers
Suppose the Sun were suddenly to shrink in size but that its mass remained the same. According to the law of conservation of ang
labwork [276]

I think its angular velocity would increase

8 0
4 years ago
Other questions:
  • A cylinder of radius R, length L, and mass M is released from rest on a slope inclined at angle θ. It is oriented to roll straig
    13·2 answers
  • Suppose for your cookout you need to make 100 hamburgers. You know that 2.00 pounds will make 9 hamburgers. How many pounds will
    10·1 answer
  • What happens to the movement of particles in a liquid when it is heated?
    9·2 answers
  • a car accelerates from rest at 3 m / s^2 along a straight road. how far has the car travelled after 4 s
    7·1 answer
  • (URGENT- Due today.)
    5·1 answer
  • An object of mass m is attached to a vertically oriented spring. The object is pulled a short distance below its equilibrium pos
    7·1 answer
  • PLEASE HELP!!!! :D When you look at the Sun through a filtered telescope, the visible portion of the Sun appears blotchy.
    6·2 answers
  • How long does a player sit out of a game of handball for committing a second or third foul?
    8·1 answer
  • Name two offensive strategies that can be utilized in the game of baseball
    13·1 answer
  • A bag contains lenses with focal lengths 10 cm, 20 cm and 25 cm which are not marked with their focal length. Describe a simple
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!