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
e-lub [12.9K]
3 years ago
13

which of the following is an example of a compound machine. a. a bicycle chain. b. a coffee mug. c. a paper cutter

Physics
1 answer:
Ann [662]3 years ago
8 0
A. a bicycle chain is an example of a compound machine
You might be interested in
How much work is done when you push a crate horizontally with 150 N across a 13-m floor
Mila [183]
Work = (force) x (distance)

When a force of 150 N pushes through a distance of 13 meters,
it does

             Work = (150 N) x (13 m) = 1,950 joules .
6 0
3 years ago
The equation for density is mass divided by volume. the mass of a substance is changed so that it is made of fewer particles. If
Finger [1]
Density is directly proportional to mass. So if there's less matter inside object, its density will also reduce.
6 0
3 years ago
Read 2 more answers
You are looking at yourself in a plane mirror, a distance of 3 meters from the mirror. Your brain interprets what you are seeing
Maslowich

Answer:6

Explanation:

5 0
3 years ago
Please help with these questions. All questions are in the image.​
S_A_V [24]

1) Average speed

2) Displacement

Explanation:

1)

Speed is a scalar quantity which gives a measure of how fast a body is moving. It is equal to the ratio between the distance travelled by an object and the time taken to cover that distance:

speed = \frac{d}{\Delta t}

where

d is the distance covered

\Delta t is the time taken

It is important to note that being a scalar, speed does not have any direction. Moreover, distance is also a scalar quantity, which corresponds to the total length of the path covered by the object, regardless on the direction taken.

So, the equation "travelled distance/elapsed time" corresponds to the average speed. (where the term average refers to the fact we are not measuring the speed at a specific instant in time, but on a certain time interval \Delta t.

2)

Velocity is a vector quantity, so it has both a magnitude and a direction.

The magnitude of the velocity is given by:

velocity=\frac{\Delta x}{\Delta t}

where

\Delta x is the change in position (or displacement) of the object

\Delta t is the time taken

And the direction of the velocity corresponds to the direction of the displacement.

We must note that while distance does not depend on the direction, displacement does. In fact, displacement measures the difference between the initial and final position of the object.

Therefore, the equation "change in position / elapsed time" is equal to the average velocity.

Learn more about speed and velocity:

brainly.com/question/8893949 (speed)

brainly.com/question/5063905 (speed vs velocity)

brainly.com/question/5248528 (velocity)

#LearnwithBrainly

4 0
3 years ago
Sound is a disturbance that travels through a medium as a
Vinvika [58]

Answer:

Sound waves. Anything that vibrates is producing sound; soundis simply a longitudinal wave passing through a medium via the vibration of particles in themedium. Consider a sound wavetraveling in air

5 0
3 years ago
Other questions:
  • Which of the following are true for E = mc2?
    7·1 answer
  • A rotating space station is said to create "artificial gravity" - a loosely-defined term used for an acceleration that would be
    9·1 answer
  • HELP PLEASE!!!!! (Apex)
    11·2 answers
  • 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
  • When the current in a coil flows in anti-clockwise direction, what pole does it create?​
    10·1 answer
  • Select the correct definition for each of the following terms:
    7·1 answer
  • The point during heat transfer at which both materials or objects are the same temperature.
    11·1 answer
  • 1. What occurs when there is a change in position of an object with respect to a reference starting point?
    10·2 answers
  • In an attempt to escape his island, Gilligan builds a raft and sets to sea. The wind shifts a great deal during the day, and he
    5·2 answers
  • Explain why the temperature is not changing at X
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!