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
ivann1987 [24]
3 years ago
15

What is second law of netwons​

Physics
2 answers:
yuradex [85]3 years ago
7 0

Explanation:

Newton's second law says that when a constant force acts on a massive body, it causes it to accelerate.

seropon [69]3 years ago
3 0

Answer:

Explanation:

Newtons second law of motion is,

                       F  =   ma

or force is equal to mass times acceleration.

You might be interested in
Two charges separated by one meter exert a 9 N force on each other. If the charges are pushed to a 3 meter separation, the force
tamaranim1 [39]

Answer:

False

Explanation:

The formula of force that exists between two charges is expressed as;

F = kq1q2/r²

If two charges separated by one meter exert a 9 N force on each other, the;

9 = kq1q2/1²

9 = kq1q2 ..... 1

If the charges are pushed to a 3 meter separation, then;

F =  kq1q2/3²

F =  kq1q2/9 .... 2

Divide both equations;

9/F = (kq1q2)/ kq1q2/9

9/F =  kq1q2 * 9/ kq1q2

9/F = 9

F = 9/9

F = 1N

Hence if the charges are pushed to a 3 meter separation, then the force on EACH charge will be 1N. Hence the answer is False

3 0
3 years ago
The magnet has an unchanging magnetic field: very strong near the magnet, and weak far from the magnet. How did the magnetic fie
STatiana [176]

Answer:

<em>The magnetic field through the coil at first increases steadily up to its maximum value, and then decreases gradually to its minimum value.</em>

<em></em>

Explanation:

At first, the magnet fall towards the coils;  inducing a gradually increasing magnetic field through the coil as it falls into the coil. At the instance when half the magnet coincides with the coil, the magnetic field magnitude on the coil is at its maximum value. When the magnet falls pass the coil towards the floor, the magnetic field then starts to decrease gradually from a strong magnitude to a weak magnitude.

This action creates a changing magnetic flux around the coil. The result is that an induced current is induced in the coil, and the induced current in the coil will flow in such a way as to oppose the action of the falling magnet. This is based on lenz law that states that the induced current acts in such a way as to oppose the motion or the action that produces it.

3 0
3 years ago
A 400.0 kg storage box is held 10 m above ground by a forklift. What is its gravitational potential energy? (PE = mgh)
castortr0y [4]

Answer: D.) 39,200 J

Via the equation of potential energy PE = mgh where m is mass, g is the average gravity on earth and h is the height.  In this case m = 400 kg, g = 9.8, h = 10 m thus:

P.E.=(400kg)(9.8\frac{m}{s^2} )(10m)=39,200 J

P.E.= 39,200 Joules

7 0
3 years ago
Read 2 more answers
if you have to apply 40 n of force on a crowbar to lift a 400 n rock what is the actual machanical andvatage of the crow bar
Eduardwww [97]
M.A. = 400/40

M.A. = 10

Hope this helps!
7 0
3 years ago
Which of these best describes heat? total thermal energy degree of warmth transfer of thermal energy average kinetic energy
Papessa [141]

Total thermal energy is the answer to your question.

3 0
3 years ago
Other questions:
  • When viewed from Earth, Mars appears to change colors. This most likely happens because
    7·1 answer
  • If you ran 15 km/h for 20 min, how much distance would you cover?
    11·1 answer
  • A block is initially at position x = 0 and in contact with an uncompressed spring of negligible mass. The block is pushed back a
    13·1 answer
  • The furnace keeps houseAat 25◦C, while thefurnace in houseBkeeps it at 20◦C. Which house requires heat to be supplied by its fur
    7·1 answer
  • Which pair of objects will have the least gravitational attraction to each other
    10·1 answer
  • Kepler’s first law states that:
    7·1 answer
  • How high above the ground would a 10 kg object needs to be to have the same GPE as the 30 kg object in the example
    13·1 answer
  • Helpppp plzzzzz for 20 points
    6·1 answer
  • Question 8
    7·1 answer
  • Sound travels at a rate of 340 m/s in all directions through air. Matt rings a very loud bell at one location, and Steve hears i
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!