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
arlik [135]
2 years ago
14

A roller coaster goes from 10 m/s to 30 m/s in 5 seconds. What is it's acceleration? Vf-Vi/T

Physics
1 answer:
Olin [163]2 years ago
6 0
Acceleration = (final velocity-initial velocity)/time taken
=(30-10)/5
= 4m/s2
Hope this helps
Please mark me brainliest
You might be interested in
I need help with my physics homework agh! Please help it's due tomorrow. <br>​
storchak [24]

Rubbing both pieces cause each piece to have a negative charge.

When two parts have the same they repel each other, so holding one piece up tot he end of the other piece would push it away.

Because one piece is held in the middle by a string, it would rotate the piece in a circle.

If they held the piece to the other end of the one held by a string it would start to rotate in the opposite direction.

4 0
3 years ago
A student placed 700g of water at 28° c in the freezer.after 6 minutes and 15 seconds the water was transformed to ice.
Maru [420]

Answer:

is this the full questions

7 0
3 years ago
Reactions that release energy into the environment in the form of heat
meriva
DEFINITION:::::;;The type of reactions in which energy is releases to the environment are called Exothermic reactions.

EXAMPLE::: formation of carbon dioxide and urea formation are actually the examples of exothermic reaction..
Hope it helps
6 0
2 years ago
When an object oscillating in simple harmonic motion is at its maximum displacement from the equilibrium position, which of the
ziro4ka [17]

Answer:

E. Zero Maximum

Explanation:

At the point of maximum displacement, the speed is zero while the restoring force is maximum. In fact:

- The restoring force is given by F=kx, where k is the spring constant and x is the displacement - at the point of maximum displacement, x is maximum, so F is maximum as well

- the total energy of the system is sum of kinetic energy and elastic potential energy:

E=K+U=\frac{1}{2}mv^2+\frac{1}{2}kx^2

where m is the mass of the system and v is the speed. Since E (the total energy) is constant due to the law of conservation of energy, we have that when K increases, U decreases, and viceversa. As a result, when x increases, v decreases, and viceversa. At the point of maximum displacement, x is maximum, so v will have its minimum value (which is zero, since the system is changing direction of motion).

4 0
3 years ago
What are
koban [17]
Igfgccdfggjjkhgdsfvvjjjg
4 0
2 years ago
Other questions:
  • 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
    6·1 answer
  • When energy is transferred to air, what happens to the particles of air? (1 point) They move slower. They move faster. They cool
    8·2 answers
  • The diffuser in a jet engine is designed to decrease the kinetic energy of the air entering the engine compressor without any wo
    8·1 answer
  • A uniform electric field exists in the region between two oppositely charged plane-parallel plates. An electron is released from
    7·1 answer
  • What's is the origin of Neptune's moon Triton?​
    6·1 answer
  • Identify a source of microwaves
    15·2 answers
  • The element radon is at the opposite end of the range, with the lowest specific heat of all naturally occurring elements. Radon'
    9·1 answer
  • 2. When a fire truck moves away from you, you hear the pitch of the siren go down. This is
    7·2 answers
  • What's an easy way to create an interference pattern of waves?
    10·1 answer
  • The electrical voltage between the ends of a resistor is equal to 8 V. A student has two voltmeters available that measure up to
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!