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
larisa [96]
2 years ago
14

The energy of a machine that is transformed into heat:

Physics
2 answers:
JulijaS [17]2 years ago
3 0

Answer:

is destroy.

Explanation:

Because it is one of the demerit of a machine

Rzqust [24]2 years ago
3 0

Answer: i dont know

Explanation:

You might be interested in
A plane designed for vertical takeoff has a mass of 8.0 × 10³ kg. Find the net work done by all forces on the plane as it accele
artcher [175]

Answer:

<em>the net work done after starting from rest is =  2.4 × 10⁵ J</em>

Explanation:

Work: Work can be defined as the product of force and distance. The fundamental unit of work is Joules (J),  The unit of Energy is Joules (J), as such Energy and work are interchangeable during calculation, This is illustrated below

E = W = 1/2mv².......................... Equation 1

Where m = mass of the plane, v = velocity of the plane, E = Energy, W = work done.

v² = u² + 2as ................................. Equation 2.

Where v = final velocity of the plane, u = initial velocity of the plane, a = acceleration of the plane, distance of the plane.

<em>Given: a = 1.0 m/s², s = 30 m, u = 0 m/s (at rest)</em>

<em>Substituting these values into equation 2</em>

<em>v² = 0² +2×1×30</em>

<em>v² = 60</em>

<em>v = √60</em>

<em>v = 7.75 m/s</em>

Also given: m = 8.0 × 10³ kg, and v = 7.75 m/s

<em>Substituting these values into equation 1,</em>

<em>W = 1/2(8.0×10³)(7.75)²</em>

<em>W = (4.0×10³)(60)</em>

W = 240 × 10³ J

<em>W = 2.4 × 10⁵ J</em>

<em>Therefore the net work done after starting from rest is =  2.4 × 10⁵ J</em>

4 0
3 years ago
The kinetic energy of an object is increased by a factor of 4 . By what factor is the magnitude of its momentum changed?(a) 16(b
maw [93]

The kinetic energy of an object is increased by a factor of 4 . By what factor is the magnitude of its momentum changed: 2.

<h3>What is kinetic energy?</h3>
  • A particle or an item that is in motion has a sort of energy called kinetic energy. An item accumulates kinetic energy when work, which involves the transfer of energy, is done on it by exerting a net force.
  • Kinetic energy comes in five forms: radiant, thermal, acoustic, electrical, and mechanical.
  • The energy of a body in motion, or kinetic energy (KE), is essentially the energy of all moving objects. Along with potential energy, which is the stored energy present in objects at rest, it is one of the two primary types of energy.
  • Explain that a moving object's mass and speed are two factors that impact the amount of kinetic energy it will possess.

The kinetic energy of an object is increased by a factor of 4 . By what factor is the magnitude of its momentum changed: 2.

To learn more about kinetic energy, refer to:

brainly.com/question/25959744

#SPJ4

4 0
1 year ago
Why football players boots have spikes their sole<br>Give short and sweet answer​
Marizza181 [45]

Answer:

it helps with balance and speed.

"The football shoes have spikes or studs because the studs or spikes provides larger frictional force than normal shoes while running on the grass. The studs prevents player from slipping on the grass and help to run faster and change direction quickly without slipping"

3 0
3 years ago
Read 2 more answers
Why is it correct to say that solar energy, wind energy, and some forms of water power have the same source?
Inessa [10]
Maybe because all of them come from natural elements (sun, air and water)
8 0
2 years ago
Which of the following is a good thermal insulator?*<br> Iron<br> Styrofoam<br> Silver<br> Graphite
Goryan [66]

Answer: graphite

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • A photon ionizes a hydrogen atom from the ground state. The liberated electron 11. recombines with a proton into the first excit
    5·1 answer
  • What is the main difference between protons and neutrons?
    12·2 answers
  • A force that results from charged particles is called?
    14·2 answers
  • 9. A sailor pulls a boat along a dock using a rope at an angle of 60.0° with the
    9·1 answer
  • 1. What quantity of heat is required to raise
    14·1 answer
  • You are given two rectangular blocks of shiny metal, Block A and Block B, and are asked to determine which one will float in a b
    9·1 answer
  • A _ spreads light into its own individual colors.
    14·2 answers
  • The volume of an object as a function of time calculated by V=At^3+B/t,where t is time measured in seconds and V is in cubic met
    8·1 answer
  • todos los cuerpos pueden estar sobre la tierra por la fuerza de gravedad .cuando nos caemos ,saltamos y realizamos otras activid
    12·1 answer
  • How would you use the index of refraction of salt water to find the concentration of a salt solution?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!