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
erastova [34]
3 years ago
9

1. A roller coaster car rapidly picks up speed it as it rolls down a slope. As it starts

Physics
1 answer:
goldfiish [28.3K]3 years ago
6 0

Answer:

Average acceleration = 6m/s²

Explanation:

Given the following data;

Initial velocity, u = 4m/s

Final velocity, v = 22m/s

Time, t = 3 seconds

To find the average acceleration;

Acceleration = (v - u)/t

Substituting into the equation, we have;

Acceleration = (22 - 4)/3

Acceleration = 18/3

Acceleration = 6m/s²

You might be interested in
HELP FAST!!!!!
Paul [167]
Mirror: Reflects off of
Glass of water: Goes through
Dark Fabric: Absorbs into
4 0
3 years ago
Read 2 more answers
A pebble is released from rest at a certain height and falls freely, reaching an impact speed of 6 m/s at the floor. Next, the p
Anna71 [15]

Answer:

Explanation:

Let h be the height .

initial velocity in first case u = 0

final velocity v = 6 m /s

acceleration due to gravity g = 9.8 m /s²

v² = u² + 2 g h

6² = 0 + 2 x 9.8 x h

h = 1.837 m .

For second case u = 3 m /s

v² = u² + 2 gh

= 3² + 2 x 1.837 x 9.8

= 9 + 36

= 45 m

v = 6.7 m /s

8 0
3 years ago
What is the atomic mass of oxygen?​
lianna [129]

Answer:

atomic \: mass \: of \: oxygen = 15.99aproximtly = 16 \\ thank \: you

8 0
3 years ago
Read 2 more answers
Maxwell shoots a rubber band at his friend Jimmy. Which type of energy is converted into kinetic energy?
Leokris [45]

A stretched rubber band is storing <em>elastic potential energy. (A)</em>

3 0
3 years ago
A 2500-kg car falls over a cliff and converts 1000,000J of PE into KE.
MArishka [77]

B is correct makes more sense

7 0
3 years ago
Other questions:
  • In a decompostion reaction, the reaction decays 21.2 times more rapidly at 22°C then at 4 °C. What is the overall activation ene
    6·1 answer
  • Two electrons in a vacuum exert force of F = 3.8E-09 N on each other. They are then moved such that they are separated by x = 8.
    13·1 answer
  • Where is date that can be controlled placed on a line graph ?
    13·1 answer
  • A wave with a period of 1⁄3 second has a frequency of A. 67 Hz. B. 33 Hz. C. 300 Hz. D. 3 Hz.
    13·1 answer
  • A motorcycle has a mass of 2.50×10^2. A constant force is exerted on it for 60.0s. The motorcycles initial velocity is 6.00 m/s
    10·1 answer
  • In the visible spectra of stars, absorption lines of hydrogen are produced when atoms are excited from n = 2 to higher levels (t
    5·1 answer
  • which type of precipitation would likely be falling from cumulus clouds with a ground air temperature of 14 degree c .. A) snow.
    14·1 answer
  • HELP ME ASAP!!!! PIC IS DOWN BELOW!
    8·2 answers
  • Two football players run down the field. One has a mass of 70 kg and the other has a mass of 100 kg. Which player will be harder
    13·1 answer
  • What's an easy way to create an interference pattern of waves?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!