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
gulaghasi [49]
3 years ago
8

What is not changed when work is done by a machine?

Physics
2 answers:
Irina18 [472]3 years ago
8 0
B) The amount of work done
san4es73 [151]3 years ago
6 0
Your answer is B
hope this helps
:):):):):):):)
You might be interested in
A stationary 90 kg baseball pitcher throws a 0.15 kg baseball forward
Marina CMI [18]

Answer: momentum = 6kgm/s

Explanation:

given that the baseball pitcher is at stationary position, his velocity will be equal to zero. If velocity is zero, his linear momentum will therefore equal to zero.

Linear momentum is the product of mass and velocity. Given that the baseball has

Mass M = 0.15 kg

Velocity V = 40 m/s

Momentum = MV

Momentum = 0.15 × 40 = 6 kgm/s

4 0
3 years ago
Answer the question based on this waveform.
Nuetrik [128]

Answer:

Cannot be determined from the given information

Explanation:

Given the following data;

Velocity = 24 m/s

Period = 3 seconds

To find the amplitude of the wave;

Mathematically, the amplitude of a wave is given by the formula;

x = Asin(ωt + ϕ)

Where;

x is displacement of the wave measured in meters.

A is the amplitude.

ω is the angular frequency measured in rad/s.

t is the time period measured in seconds.

ϕ is the phase angle.

Hence, the information provided in this exercise isn't sufficient to find the amplitude of the waveform.

However, the given parameters can be used to calculate the frequency and wavelength of the wave.

6 0
3 years ago
Each value in nature has a number part, called its____<br> and a dimension, or unit
saul85 [17]

Answer:

<u>Magnitude</u>

Explanation:

Each value in nature has a number part, called its magnitude and a dimension called its unit.

For example,

The length of an object is 10 cm. It means that 10 shows the magnitude of length and cm shows its unit.

7 0
3 years ago
What is the evidence proving that we're in the 6th mass extinction?
Sveta_85 [38]

Answer:

Global warming and climate change

8 0
3 years ago
Which statement about thermal energy is true?
NNADVOKAT [17]

Answer:Thermal energy is a measure of a substance 's specific heat

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Two charges repel one another at 5N, if the distance between them is 2m and the force increases to 25N, what is the new distance
    12·1 answer
  • Please answer as soon as possible. <br><br> A Physics question about electricity and circuits.
    11·1 answer
  • What travels on a wave
    11·1 answer
  • Write a 150 word paragraph or two that describes at least three everyday things that exist or occur because of science. Make sur
    5·2 answers
  • What are two ways to increase the energy of a wave​
    6·1 answer
  • How can we magnitise and demagnitise a magnet at the same time
    9·2 answers
  • Explain the why a constant speed has a slope of 0 on a graph of speed v.time.
    12·1 answer
  • Hey guys I need help please help me what do y’all think it is I need help And I’m struggling
    6·2 answers
  • RIDDLE
    13·1 answer
  • In which of the following situations is the Doppler Effect absent?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!