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
Lerok [7]
3 years ago
7

Which is true about using energy? There is an unlimited amount of energy in the universe. When energy is used, it disappears for

ever. When energy is used, it can transform to new types but can never disappear. A falling object increases its total energy.
Physics
1 answer:
frutty [35]3 years ago
7 0

Answer:

3.  When energy is used, it can transform to new types but can never disappear.

Explanation: it can transform into heat, light, ect and will never disapear unlessed turned of.

You might be interested in
Which part of an atom has most of its mass? A. electrons B. neutrons C. nucleus D. protons
vredina [299]

<em>The </em><em>nucleus</em><em> has most of the atomic mass in an atom. The </em><em>nucleus</em><em> is made up of protons and neutrons.</em>

<em />

6 0
3 years ago
Read 2 more answers
Can someone explain how exactly to calculate the net force? Do you subtract the smaller number from the larger number? Any help
aleksley [76]

Explanation:

Let's say right is positive and left is negative.

F₁ = -150 N

F₂ = 220 N

Fnet = F₁ + F₂

Fnet = -150 N + 220 N

Fnet = 70 N

The magnitude of Fnet is 70 N, and since it's positive, the direction is to the right.

And since Fnet isn't 0, the force is unbalanced and the motion is changing.

3 0
3 years ago
PLEASE HELP ME
posledela
Low levels of fecal coliform
5 0
3 years ago
Read 2 more answers
The net flow of energy into and out of the earths system is referred to as energy budget. which type of energy is lost in space
Svet_ta [14]
D not 100% sure though.
4 0
3 years ago
An 800-kHz radio signal is detected at a point 2.7 km distant from a transmitter tower. The electric field amplitude of the sign
dimaraw [331]

Answer:

Option D is correct: 170 µW/m²

Explanation:

Given that,

Frequency f = 800kHz

Distance d = 2.7km = 2700m

Electric field Eo = 0.36V/m

Intensity of radio signal

The intensity of radial signal is given as

I = c•εo•Eo²/2

Where c is speed of light

c = 3×10^8m/s

εo = 8.85 × 10^-12 C²/Nm²

I = 3×10^8 × 8.85×10^-12 × 0.36²/2

I = 1.72 × 10^-4W/m²

I = 172 × 10^-6 W/m²

I = 172 µW/m²

Then, the intensity of the radio wave at that point is approximately 170 µW/m²

7 0
3 years ago
Other questions:
  • The children at the local park think the slide is too slow. There is too much fiction. What could you do to decrease the amount
    6·1 answer
  • If the primary of a transformer were connected to a dc power source,
    12·1 answer
  • Reaction rate depends on how many molecules come into contact with each other with enough energy to react. How would you increas
    6·1 answer
  • When lost fluid is not replaced adequately can result
    9·1 answer
  • Calculate the gravitational potential energy of the interacting pair of the Earth and a 11 kg block sitting on the surface of th
    10·1 answer
  • Monochromatic light passes through a double slit, producing interference, the distance between the slit centres is 1.2 mm and th
    15·1 answer
  • Scientists have designed solar cells to trap solar energy and convert it to _____ energy.
    15·2 answers
  • The space shuttle releases a satellite into a circular orbit 630 km above the Earth.
    12·1 answer
  • PLEASE AWNSER CORRECTLY AND ILL GIVE BRAINLIEST
    13·1 answer
  • You are riding a bicycle at 20 m/s at 10:00 am. At 10:01 am, you notice that you are traveling at 40 m/s. You are headed W. What
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!