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
STatiana [176]
3 years ago
7

An object is moving at 100 m/s and comes to a stop in 25 seconds. What is its acceleration?

Physics
1 answer:
BARSIC [14]3 years ago
3 0

Answer:

-4m/s²

Explanation:

a = Δv/t

Our change in velocity is equal to v₂-v₁, which in this equation is 0 m/s - 100 m/s, so our change in velocity is -100m/s. Now plug that and our time into the equation, like so:

a = (-100m/s)/(25s) a= -4m/s².

You might be interested in
What is the magnitude of the displacement of a car that travels half a lap along a circle of radius of 150m?
Lisa [10]
It would be equal to 2r = 2* 150 = 300m
6 0
3 years ago
Resistance increases with the length of the wire
Marta_Voda [28]
If the length of the wire increases, then the amount of resistance will also increase.

1. Take a long piece of wire and cut it 10 pieces. Those pieces should all be different sizes, one should be 5___ (units in meter, cm, inches, etc.), and the next should be 5 ___ (units in meter, cm, inches, etc.) more than the one before.
2. Take one piece of wire and measure the resistance using ___ and record the results in the data table.
3. Repeat the previous step with all the pieces of wire.
4. Compare and contrast the results you have found.

I hope this helps a bit :)
4 0
4 years ago
What is a concentration?​
Tresset [83]

Answer/Explanation:

In chemistry, concentration is the abundance of a constituent divided by the total volume of a mixture. Several types of mathematical description can be distinguished: mass concentration, molar concentration, number concentration, and volume concentration.

A concentration refers to a subject or study within a specific major. As part of the degree coursework, concentration classes count toward your major requirements as well.

8 0
3 years ago
Read 2 more answers
Explain: What happens to the velocity of a stream as the size of the sediment increases?
artcher [175]

Answer:

Also, as stream depth increases, the hydraulic radius increases thereby making the stream more free flowing. Both of these factors lead to an increase in stream velocity. The increased velocity and the increased cross-sectional area mean that discharge increases.

8 0
3 years ago
a man stands in a lift going downward with uniform velocity. he experiences a loss of weight at the start but not when lift is i
AnnyKZ [126]

Answer:

It is explained in the explanation section

Explanation:

When the lift starts going downwards, it will start accelerating downwards. After a while, it will start moving with a constant velocity.

Constant velocity means that acceleration is zero and so the man will not feel any weight loss.

Now, Once the lift achieves constant velocity the acceleration is zero hence he will not experience any weight loss.

However, when the lift is in uniform motion, the lift and the man will fall down with an acceleration(a) that is less than that due to gravity(g) . Thus, the man will feel an apparent weight F which is not equal to zero.

6 0
4 years ago
Other questions:
  • 9. A child standing on a bus remains still when the bus is at rest. When the bus moves forward and then slows down, the child co
    12·1 answer
  • A cotton garment cannot keep us warm in winter as a woolen sweater can. Give <br> reason.
    5·2 answers
  • The kinetic energy of a ball with a mass of 0.5 kg and a velocity of 10 m/s isJ.
    14·1 answer
  • 3/50 The standard test to determine the maximum lateral acceleration of a car is to drive it around a 200-ft-diameter circle pai
    15·1 answer
  • 1. What quantity of heat is required to raise
    14·1 answer
  • Read this because I need help pleaseeeeee !!!
    10·1 answer
  • Explain the arguments for and against the theory that animals have the capacity for language, like humans.
    5·1 answer
  • Vitellium (Vi) has the following composition:
    15·1 answer
  • The pressure at the bottom of a cylindrical container with a cross-sectional area of 45.5 cm2 and holding a fluid of density 420
    8·1 answer
  • Help please!!!!!!!!! I will mark brainliest!!!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!