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
finlep [7]
3 years ago
14

Please help!!!!!!!

Physics
1 answer:
kkurt [141]3 years ago
7 0
The answer is A. The ball exerts an equal backward force on the racket. Newton’s 3rd Law: to every action there is an equal and opposite reaction.
You might be interested in
What do you think would happen if the voltage were swept very quickly?
amm1812
Whatever depends on the voltage would change very quickly i guess
8 0
3 years ago
A set of twins works in the willis tower, a very tall office building in chicago. one works on the top floor and the other works
emmasim [6.3K]
...................................................
3 0
3 years ago
How do you convert mass to weight and visa versa
Darina [25.2K]
To change from mass to weight is Fw = 30 kg * 9.8 m/s^2 = 294 N. To change from weight to mass divide by gravity (9.8 m/s^2).
6 0
3 years ago
Read 2 more answers
A 82-kg skydiver has a speed of 40 m/s at an altitude of 490 m above the ground. Calculate the total mechanical energy of the sk
Sav [38]

Answer:

ME=459,364J

Explanation:

Mechanical Energy=Potential Energy+ kinetic Energy

m=82kg,g=9.8N/kg,h=490m,v=40m/s

To calculate Kinetic Energy:-

KE=\frac{1}[2}mv^2\\=\frac{1}{2}\times82kg \times(40m/s)^2\\=65600J

To calculate Potential Energy:-

PE=mgh\\=82kg \times9.8N/kg \times490\\=393764

therefore,

ME=KE+PE\\=65600+393764\\=459364J

The skydiver's total mechanical energy is 459365J

8 0
3 years ago
Think about the types of forces holding the atoms together in different chemicals. Are there any patterns that can be drawn from
Leya [2.2K]

Hello. You did not enter the data to which this question refers, which makes it impossible for it to have an exact answer. However, I will try to help you in the best possible way.

The forces that hold the elements together are called intermolecular forces. They are formed by covalent bonds between the molecules and can be called: dipole-induced (occurs between nonpolar molecules that have a negative pole and a positive pole) and dipole-dipole (occurs between polar moileculas, except when hydrogen is present).

5 0
3 years ago
Other questions:
  • My older son Ben is quite a good juggler. He got in some trouble once when he left a set of clear acrylic juggling balls, like t
    6·1 answer
  • Where does the energy of water at the top of the waterfall come from?
    13·1 answer
  • A horizontal board of length 6.1 m and mass 12.8 kg rests on two supports. The first support is at one end of the board. The sec
    12·1 answer
  • A plane traveling at a constant speed is able to travel 600 miles in 5 hours. how fast was the plane flying?
    7·1 answer
  • A GIAC credential holder may submit a technical paper that covers an important area of information security. If the paper is acc
    11·1 answer
  • stephen buys a new moped . he travels 4km south and then 6km east. how far does he need to go to get back where he started??
    8·1 answer
  • Show which of the following functional forms work or do not work as solutions to this differential equation (known as 'the wave
    12·1 answer
  • The SI unit for speed is
    9·2 answers
  • Two charged particles, with charges q1=q and q2=4q, are located at a distance d= 2.00cm apart on the x axis. A third charged par
    11·1 answer
  • I have this bigfoot worksheet for science. It says, "When designing an experiment, which two groups must be involved?" Can you h
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!