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
Nikitich [7]
2 years ago
7

PLZ HELP ME WITH THIS QUESTION! NO LINKS!!will give 5 stars and brainliest ​

Physics
2 answers:
Rufina [12.5K]2 years ago
8 0

Answer:

It is four

Explanation:

You don't need any work to be done, you just kinda slide it off your arms and it could possibly be 5 bcs the backpack falls itself due to the laws of gravity but you do need to throw it

ohaa [14]2 years ago
3 0
The answer is: Option 4
You might be interested in
if you push your chair across the floor at a constant velocity how does the force of friction compare with the force you exert?
Alik [6]
-- If velocity is constant, then there is no net force
on the chair.

-- If there is no net force on the chair, then friction
must exactly balance out your push.

-- The force of friction is exactly equal in magnitude
to your push, and in exactly the opposite direction.
5 0
3 years ago
Read 2 more answers
What is the kinetic energy of a 74.0 kg skydiver falling at a terminal velocity of 52.0m/s?
skad [1K]

Answer:

100,048

Explanation:

K.E = 1/2 m (v)^2

K.E = 1^/2 * 74 * (52)^2

K.E = 100,048J =100.048kJ

8 0
3 years ago
A person, with a mass of 50.0 kg, stands on a weighing scale in a lift which is moving
svet-max [94.6K]

Answer:

D

Explanation:

Because I just had that answer

6 0
3 years ago
To be effective, an exercise program must be?
ExtremeBDS [4]

To be effective, an exercise program must have an aerobic form, portion for strength enhancement, and a stretching part. These three things are essential because they each target specific improvements in your body. For example, aerobics can help you maintain your body’s fitness or make it better. This usually targets your heart rate and ensures that you burn fat while doing so. Second is strength enhancement; this will make sure that your body becomes better – not just in a feeble state. Lastly is stretching, your muscles are like rubber bands. You cannot end or start your exercise program without stretching simply because they can damage your muscles as well. Aside from this, stretching can stop you from shocking your body into a physical activity, which may cause you to lose consciousness or have undue stress and fatigue. 

3 0
3 years ago
Read 2 more answers
What type of charges attract each other
Ksivusya [100]

Answer:

opposite charges attract each other while same charges repel each other.

~batmans wife dun dun dun.....

4 0
3 years ago
Other questions:
  • Which of the following represents a system that is completely open?
    9·2 answers
  • The magnetic field is strong near the ____ of a magnet.
    7·1 answer
  • You are standing in a street corner. And egg falls and splats on the street. Being an expert in egg disintegration you estimate
    14·1 answer
  • How does subjustion change the ocean florr<br><br> this is acctualy in science
    7·1 answer
  • A watermelon cannon fires a watermelon vertically up into the air at a velocity of +9.5m/s, starting from an initial position of
    11·1 answer
  • Let's take two balls, each of radius 0.1 meters and charge them each to 3 microCoulombs. Then, let's put them on a flat surface
    8·1 answer
  • One cubic meter (1.0 m3
    11·1 answer
  • A 28 kg student stand on the surface of the Earth. What is the magnitude of the
    7·1 answer
  • If a rock is thrown vertically upward from the surface of Mars with velocity of 20 m/s, its height (in meters) after t seconds i
    15·1 answer
  • Cindy runs 500 meters every morning. It takes her 2 hours to complet
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!