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
KIM [24]
2 years ago
13

Friction _____.

Physics
1 answer:
quester [9]2 years ago
8 0

Answer:

all above

Explanation:

friction is necessary to live

You might be interested in
Which is one way scientists indicate how precise and accurate there experimental measurements are
kherson [118]
They do the method 3 times to be sure. Because if you do it once, that could mean anything. If you do it twice, it may or may not have the same result. If you do it 3 times and it matches one of the previous answers, then it's likely that it's correct.
8 0
3 years ago
As the elephant falls from 10 m does it lose or gain KE? Explain.
ivolga24 [154]

He loss KE hope this helps

7 0
3 years ago
Read 2 more answers
Luigi twirls a round piece of pizza dough overhead with a frequency of
viva [34]

The linear speed of the pepperoni is 0.628 m/s. Its direction is tangential to the circle.

We know that;

v = rω

r = radius of the piece = 10 cm or 0.1 m

ω = angular velocity

We have to convert 60 revolutions per minute to radians per second

1 rev/min = 0.10472 rad/s

60 revolutions per minute = 60 rev/min × 0.10472 rad/s/1 rev/min

= 6.28 rad/s

v =  0.1 m ×  6.28 rad/s

v = 0.628 m/s

The direction of this velocity is tangential to the circle.

Learn more: brainly.com/question/4612545

5 0
2 years ago
During each cycle, a refrigerator ejects 610 kJ of energy to a high-temperature reservoir, and takes in 505 kJ of energy from a
jenyasd209 [6]

Answer

A. the work done on the refrigerant in each cycle is 105kJ

B the coefficient of performance of the refrigerator is 4.8

Explanation

Given data

Work done at high temperature T2 Qh=610kJ

Work done at low temperature T1 Ql=505kJ

We know that the net work done by the refrigerator is expressed as

Wnet= Qh-Ql

=610-505

=105kJ

Also we know that the coefficient of performance is expressed as

COP= Ql/Wnet

COP= 505/105

= 4.8

8 0
2 years ago
What was the dwarf planet discovered in AZ? ​
Lerok [7]

Answer:

Pluto.

Explanation:

an observary in Flagstaff, Arizona, discorvered it.

6 0
2 years ago
Other questions:
  • Two coils that are separated by a distance equal to their radius and that carry equal currents such that their axial fields add
    8·1 answer
  • A handle or knob is fixed at free end of door.why?
    8·1 answer
  • How long does it take light from the sun to reach earth?
    12·2 answers
  • A 10-newton force is applied to a 2-kg block. The block slides across the floor at a constant speed of 5 m/s. What is a valid co
    12·2 answers
  • Most of the elements (85%) in the periodic table are.
    9·2 answers
  • A motorcyclist heading east through a small town accelerate at constant 4.0meter per seconds square after he leaves the limits.
    12·1 answer
  • Two similar waves X and Y travel through the same medium. Wave X has a frequency of 200 hertz and a
    11·1 answer
  • An object is moving in a straight line at constant speed. A resultant torce begins to act upon
    6·1 answer
  • Twin skaters approach each other with identical speeds. Then, the skaters lock hands and spin. Calculate their final angular vel
    14·1 answer
  • car starts from rest and reaches a velocity of 10 m/s in 10s a) Draw the v against t graph for the motion of the car? b) From th
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!