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
V125BC [204]
3 years ago
6

Pls help i’m begging you

Physics
1 answer:
stiv31 [10]3 years ago
3 0

Answer:

true,true,false,true

Explanation:

You might be interested in
What does it mean when work is positive?
jenyasd209 [6]
Both positive work and negative work have meaning: Positive work follows when the force has a component parallel to the displacement. Positive work adds energy to a system. Negative work follows when the force has a component opposite or against the displacement.
7 0
2 years ago
In the waves lab you change blank to see how it would affect wave speed​
GaryK [48]

where is the question in this ????

7 0
3 years ago
When the weight of the object increase block what is the force of friction applied? Explanation?
erik [133]

Answer:

There is absolutely No relationship between the weight of an object (which is constant) and the frictional force. If a block is sliding on a surface, that surface will be exerting a force on the block. That force can be resolved into a component parallel to the surface (which we call the frictional component), and a component perpendicular to the surface (called the normal component). For many situations, we find experimentally that the frictional component is approximately proportional to the normal component. The frictional component divided by the normal component is defined to be a quantity called the coefficient of kinetic or sliding friction. The coefficient of kinetic friction obviously depends on the nature of the surfaces involved. The normal component on an object can be decreased if you pull in the direction of the normal component (the weight does not change). However pulling this way on the object not only decreases the normal component, but it also decreases the frictional component since they are proportional. This is why it is easier to slide something if you pull up on it while you push it. If you push down, the normal and frictional components increase so it is harder to slide the object. The weight of an object is the downward force exerted by Earth’s gravity on that object, and it does not change no matter how you push or pull on the object.

8 0
2 years ago
Suzette had prepared the graph below to add to her lab
Charra [1.4K]

Answer:

A title

Explanation:

Because this is middle school.

4 0
3 years ago
Read 2 more answers
The image shows the positions of a car on a roller coaster track. Arrange the cars in order based on their gravitational potenti
RideAnS [48]

Correct order, from lowest potential energy to highest potential energy:

E - C - D - B - A

Explanation:

The gravitational potential energy of the car is given by:

U=mgh

where

m is the car's mass

g is the gravitational acceleration

h is the height of the car relative to the ground

In the formula, we see that m and g are constant, so the potential energy of the car depends only on its height above the ground, h. The higher the car from the ground, the larger its potential energy. Therefore, the position with least potential energy will be E, since the height is the minimum. Then, C will have more potential energy, because the car is at higher position, and so on: the position with greatest potential energy is A, because the height of the car is maximum.

5 0
3 years ago
Read 2 more answers
Other questions:
  • A diver shines light up to the surface of a flat glass-bottomed boat at an angle of 30° relative to the normal. If the index of
    9·1 answer
  • Suppose that the distance an aircraft travels along a runway before takeoff is given by Upper D equals (5 divided by 3 )t square
    10·1 answer
  • If all else stays the same, which would cause an increase in the gravitational force on a space shuttle?
    12·2 answers
  • Research has found that the greatest risk of developing a major depression occurs between the ages of 15-24 and 35-44. Your age
    7·1 answer
  • Help! Please???
    5·1 answer
  • A force that causes an object to change its motion is called?
    8·1 answer
  • Dana is on a train traveling at a speed of 20 km/h. Dana walks from the front of the train to the back of the train at a speed o
    10·1 answer
  • A rock is thrown straight up with an initial velocity of of 24.9m/s^2 . what maximum height will the rock reach before starting
    9·1 answer
  • Why did Rita's hands get hot when she rubbed them ?
    6·2 answers
  • A light ray is incident on a smooth surface at an angle of 25 degrees with the surface. What is the angle of incidence?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!