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
Svetradugi [14.3K]
3 years ago
7

A TV has a power of 130 watts and an efficiency of 80 percent. How much

Physics
1 answer:
elena55 [62]3 years ago
3 0

Answer:

I think A. 104.0 W is wasted add heat.

Explanation:

130 W x 80% = 130 W x 0.8

= 104.0 W

You might be interested in
What is a non contact force that attracts all objects to the centre of the earth
beks73 [17]

Answer:

<em>Gravity</em><em>.</em><em> </em><em>The</em><em> </em><em>weight-force</em><em> </em><em>or</em><em> </em><em>weight</em><em> </em><em>of</em><em> </em><em>an</em><em> </em><em>object</em><em> </em><em>is</em><em> </em><em>the</em><em> </em><em>force</em><em> </em><em>because</em><em> </em><em>of</em><em> </em><em>Gravity</em><em>,</em><em> </em><em>which</em><em> </em><em>acts</em><em> </em><em>on</em><em> </em><em>the</em><em> </em><em>object</em><em> </em><em>attracting</em><em> </em><em>it</em><em> </em><em>towards</em><em> </em><em>the</em><em> </em><em>centre</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>earth</em><em>.</em>

<em>Hope</em><em> </em><em>this</em><em> </em><em>helps</em><em>,</em><em> </em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>x</em>

4 0
3 years ago
GUYS PLEASE HELP!! The number of individuals that die in a population in a certain time period is the _______ WHAT IS IT!? Pleas
ryzh [129]
I think it "Death rate" but I am not very sure though.
3 0
3 years ago
What is terrestrial radiation?
Feliz [49]
C) Radiation that comes from Earth...... Hope it helps, Have a nice day :)
6 0
2 years ago
Read 2 more answers
Energy is conserved. This means that in any system, _________. a) energy is constantly recycled b) total energy input equals tot
tangare [24]

Answer:

b) total energy input equals total energy output

Explanation:

The first law of thermodynamics is a generalization of the conservation of energy in thermal processes. It is based on Joule's conclusion that heat and energy are equivalent. But to get there you have to get around some traps along the way.

From Joule's conclusion we might be tempted to call heat "internal" energy associated with temperature. We could then add heat to the potential and kinetic energies of a system, and call this sum the total energy, which is what it would conserve. In fact, this solution works well for a wide variety of phenomena, including Joule's experiments. Problems arise with the idea of ​​heat "content" of a system. For example, when a solid is heated to its melting point, an additional "heat input" causes the melting but without increasing the temperature. With this simple experiment we see that simply considering the thermal energy measured only by a temperature increase as part of the total energy of a system will not give a complete general law.

Instead of "heat," we can use the concept of internal energy, that is, an energy in the system that can take forms not directly related to temperature. We can then use the word "heat" to refer only to a transfer of energy between a system and its environment. Similarly, the term work will not be used to describe something contained in the system, but describes a transfer of energy from one system to another. Heat and work are, therefore, two ways in which energy is transferred, not energies.

In an isolated system, that is, a system that does not exchange matter or energy with its surroundings, the total energy must remain constant. If the system exchanges energy with its environment but not matter (what is called a closed system), it can do so only in two ways: a transfer of energy either in the form of work done on or by the system, either in the form of heat to or from the system. In the event that there is energy transfer, the change in the energy of the system must be equal to the net energy gained or lost by the environment.

6 0
3 years ago
When using the given diagram, the following steps prove the Pythagorean theorem.
Marat540 [252]

Answer:

It's B

Explanation:

7 0
3 years ago
Other questions:
  • A closed system is BEST described as
    5·1 answer
  • A charged ball is moving horizontally and perpendicular to a magnetic field of 0.8 Tesla. The ball has a mass of 0.007 kg and ha
    6·2 answers
  • A ball is thrown upward from the top of a 25.0 m tall building. The ball’s initial speed is 12.0 m/sec. At the same instant, a p
    10·1 answer
  • Suppose astronomers discover a radio message from a civilization whose planet orbits a star 35 light-years away. Their message e
    11·1 answer
  • Help me please!! 15points
    13·1 answer
  • PLZ HELP ON #22-26!!!! <br><br>Please explain why and how you got your answer.
    13·1 answer
  • billy bob joe's truck has a mass of 3,800 g and an acceleration of 4.5 m/s^2. what is the force of the truck? (you will have to
    10·1 answer
  • Suppose 2.10 C of positive charge is distributed evenly throughout a sphere of 1.30-cm radius. 1) What is the charge per unit vo
    15·1 answer
  • State any 3 properties of an ideal gas as assumed by the kinetic theory.​
    12·1 answer
  • What is gravity???☺️<br>​
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!