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
malfutka [58]
3 years ago
9

Sort these statements about machines based on whether they are correct or incorrect.

Physics
2 answers:
insens350 [35]3 years ago
8 0

as well.

1. Correct

Explanation

An inclined plane is a flat  surface which lie at an angle, Its one end is higher than the other this inclined plane is used as an aid for raising or lowering a load. Staircase also work in similar manner

2. Correct

Explanation

yes all simple machine have a fulcrum

3. Incorrect

Explanation

when we swim that time our arms and legs 'push' the water due to which water displaced in backward direction so her we applied a positive work on the water. According to Newton's Third Law,same magnitude of work is done by water in opposite direction to push us back on our arms and legs. therefore water also does positive work on us.

4. incorrect

Explanation

The force exerted by a machine on an object is input force

5.  Incorrect

Explanation

when the input force is greater than the output force that time machine have mechanical advantage of less than 1.


givi [52]3 years ago
8 0

Answer: I just took the test! I hope this helps.

<em>Correct-</em>

When a person swims through  water, no work is done.

All simple machines have a fulcrum.

A machines power depends on how fast the machine is able to do work.

<em>Incorrect-</em>

A staircase is an example of an inclined plane.

The force exerted by a machine on an object that's lifted or moved is the output force.

All machines have a mechanical advantage of 1 or more than 1.

You might be interested in
Please helppppppp!!!!!!!!!!!!!!
azamat

Answer:

circuit breaker

Explanation:

A circuit breaker is a device used for electrical safety. It consists of a switch designed to protect an electrical circuit from damage that may result from heating due to overload in the circuit.

Its basic function is to interrupt current flow through its switch that consists of metal stripe which bends when it gets hot.

Fuse has similar action with circuit breaker, the only difference is that fuse can only be used once because it melts when it gets hot.

Therefore, the correct answer is "circuit breaker"

8 0
3 years ago
How could you tell whether or not you are in a magnetic feild
Aleks04 [339]
Magnetic fields are areas where an object exhibits a magnetic influence. The fields affect neighboring objects along things called magnetic field lines. A magnetic object can attract or push away another magnetic object. You also need to remember that magnetic forces are NOT related to gravity. The amount of gravity is based on an object's mass, while magnetic strength is based on the material that the object is made of. 
7 0
3 years ago
Sam shared with his class that he lives on Oak Street. Sam is likely how old?
Lyrx [107]

D FOUR years old hope this helps


mark brainliest please

4 0
3 years ago
Read 2 more answers
When a can is crushed did it undergo a physical change
brilliants [131]
Because even though  the object got crush and misshape it still has the same identity. the identity never change
4 0
3 years ago
Find Vxl and Vyl of a pumpkin launched at a velocity of 55 m/s at an angle of 20 degrees
Vinvika [58]

Answer:

             

Explanation:

is  A projectile is any object on which the only force acting is gravity and air resistance (drag).

Examples of projectiles are:

baseballs and softballs in the air after being hit by the bat

golf balls hit by a club

objects dropped from aircraft, such as people (skydivers), bombs, crates of food being dropped to refugees

objects launched by cannons, such as cannonballs, shells, and circus performers

Once the baseball, softball, golf ball, skydiver, bomb, crate, cannonball, shell, or clown are no longer touching the bat, club, aircraft, or cannon, and are in the air with only gravity and slight air resistance acting on it, then it is a projectile.

Here is an online projectile motion applets to play with, just for fun.

Unless otherwise stated in a particular problem or discussion, we will be ignoring the effects of air resistance.

The key to understanding the motion of projectiles is that the horizontal motion and the vertical motion of the projectile are independent of each other. So we can write separate equations for the displacement of the projectile in the horizontal (x) and vertical (y) directions.

                         

The only common variable between these two equations is t, the time. Because in projectile problems there is usually no acceleration (i.e. we ignore air resistance) in the horizontal direction, we can write

           

The velocity components follow the same equations we used for one-dimensional motion.

                             

Because there is usually no acceleration in the x direction, the x-velocity is constant.

3 0
3 years ago
Other questions:
  • Which kind of storm do you think would cause damage over a larger area A cyclone or a tornado why
    12·2 answers
  • A man has a mass of 110kg. What is his weight?
    8·1 answer
  • The motorcycle travels with a constant speed v0 along the path that, for a short distance, takes the form of a sine curve. Deter
    5·1 answer
  • How is lightning related to static electricity?
    9·1 answer
  • If you double the net force on an object what is the result of the acceleration
    11·1 answer
  • A stationary rock on a hill has
    5·2 answers
  • Which of the following describes a magnet that only has a field when a current is present? permanent magnet magnetic domain elec
    11·1 answer
  • . Which of the following is NOT a property of water? A. Ability to dissolve many substances B. Constant volume upon freezing C.
    14·2 answers
  • How does a proper warm up affect blood flow
    14·1 answer
  • Which list includes the phase changes that require a loss of energy (heat)?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!