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
Paul [167]
3 years ago
12

HELP DUE TODAY

Physics
1 answer:
olga2289 [7]3 years ago
3 0
The answer is B I think sorry if it’s wrong
You might be interested in
An airplane accelerates from a velocity of 22 m/s to 40 m/s with an acceleration of 2 m/s2. How long does it
andrey2020 [161]

The time it takes the plane to change its velocity is 9s.

<h3>What is time?</h3>

Time can be defined the measured or measurable period during which an action, process, or condition exists or continues.

To calculate the time it takes the airplane to change its velocity, we use the formula below.

Formula:

  • t = (v-u)/a.......... Equation 1

Where:

  • a = Acceleration
  • v = Final velocity
  • u = Initial velocity
  • t = time

From the question,

  • v = 40 m/s
  • u = 22 m/s
  • a = 2 m/s²

Substitute these values into equation  1

  • t = (40-22)/2
  • t = 18/2
  • t = 9s

Hence, the time it takes the plane to change its velocity is 9s.

Learn more about time here: brainly.com/question/2854969

4 0
1 year ago
An electric motor rotates 60 times per second if the alternating current source is 60 Hz. How many times will an electric motor
valentina_108 [34]

Answer:

180,000

Explanation:

Frequency is a quantity that is measured in Hertz [Hz] and it represents the number of rotations per second.

A motor with a frequency of 50 Hz will rotate 50 times per second.

Since we don't want to know how many times it rotates per second, but per hour. The first step is to find how many seconds there are in an hour and then multiply that amount by 50.

Seconds in an hour:

there are 60 seconds per minute, and 60 minutes per hour, thus there are

60*60 = <u>3,600 seconds in an hour</u>

We know that the motor will rotate 50 times per second so to find the number of rotations in 1 hour =  3,600 seconds we multiply:

50*3,600 = 180,000 rotations

8 0
3 years ago
A. How does doubling the height of the cylinder affect its GPE?
vampirchik [111]

The answer would be:

Doubling the height will increase the amount of Joules produced.


8 0
3 years ago
How can the rate of a reaction be increased?
OlgaM077 [116]

The Answer Is Lowering the amount of reactants

7 0
3 years ago
Read 2 more answers
Which of the following forms matter?<br> A. Proteins<br> B.atoms<br> C.cells<br> D. DNA
Artemon [7]

Answer:b) atoms

Explanation:which are in turn made up of protons, neutrons and electrons

8 0
2 years ago
Read 2 more answers
Other questions:
  • In what way are liquids different from
    10·2 answers
  • A gas is in a sealed container.Part ABy what factor does the gas temperature change if the volume is doubled and the pressure is
    14·1 answer
  • You are sliding across a hockey rink and catch a hockey puck as you continue to slide. What type of collision is this?
    5·2 answers
  • The Greek philosopher Democritus coined what word for a tiny piece of matter that cannot be divided?
    6·2 answers
  • A light bulb provides a resistance of 20 Ω to the 30 A current that runs through it. Determine the voltage of the battery in the
    15·2 answers
  • A 5 kg block is sliding on a horizontal surface while being pulled by a child using a rope attached to the center of the block.
    13·1 answer
  • An aeroplane accelerates from rest to 65 m/s for take-off. It travels for
    15·1 answer
  • What formula can I use to solve speed and temperature in soundwave​
    8·1 answer
  • A car has a mass of 1000 kg and a momentum of 12 000 kg m / s.<br> What is its kinetic energy?
    7·1 answer
  • Which best explains horatio’s error? magnetism is not produced by electric currents unless the wire is coiled. the magnetic fiel
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!