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
Crazy boy [7]
3 years ago
10

A constant friction force of 21 N acts on a 63-kg skier for 25 s on level snow. What is the skier’s change in velocity?

Physics
1 answer:
erica [24]3 years ago
4 0
The skier’s change in velocity is 8.33.../8.4 m/s.
21/63= 0.33...
0.33...x 25 s = 8.33.../8.4 m/s
You might be interested in
Help quick
Yanka [14]

C it reduces the amount of useful work done on objects move it up the ramp

8 0
3 years ago
at a certain moment, an object has an amount of 200 of motion energy and 400 of gravitational potential energyThe object is also
Radda [10]

Answer:

twice as much energy

Explanation:

8 0
2 years ago
How to calculate time using power and energy
Troyanec [42]

Answer:

The formula that links energy and power is: Energy = Power x Time. The unit of energy is the joule, the unit of power is the watt, and the unit of time is the second.

Explanation:

7 0
3 years ago
The largest number of neurons within the brain and spinal cord are responsible for the central nervous system's complex internal
GREYUIT [131]

Answer: Interneurons.

These interneurons transmit impulses to other neurons and thus form a part of the reflux arc.


3 0
3 years ago
What internal process cause most earthquake
Alisiya [41]
Plate Tectonics cause most earthquakes.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Natural gas is very abundant in the United States. Compared to other fossil fuels, which describes the waste products of the com
    15·2 answers
  • If your speech changes from 10 km/h to 6 km, you have a(n) ___ acceleration. A. negative B. Positive C. Neutral D. Oscillating
    11·1 answer
  • Two point charges exert a 5.50 N force on each other. What will the force become if the distance between them is increased by a
    14·1 answer
  • A frog leaping upward off his lily pad instead of continuing on in a straight line . Which law is it ?
    15·2 answers
  • A cube of side 6.50 cm is placed in a uniform field E = 7.50 × 10^3 N/C with edges parallel to the field lines (field enters the
    14·2 answers
  • A skateboarder rolls off a ledge that is 1.12 m high, and lands 1.48 m from the base of the edge. How much time was he in the ai
    12·1 answer
  • g beats can be heard when Question 5 options: when sound waves interfere constructively when sound waves of same frequency inter
    9·1 answer
  • Which of the follbwing ways of coping with emotions is helpful?
    6·2 answers
  • A 2 kg object has a specific heat capacity of 1,700 J/(kg \cdot⋅oC)
    7·1 answer
  • What happens inside when an air-filled, sealed can, is heated?.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!