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
STALIN [3.7K]
3 years ago
5

What forces come in pairs? Give an example help ASAP

Physics
1 answer:
kondor19780726 [428]3 years ago
3 0
Action and reaction forceZ
You might be interested in
You walk with a velocity of 2 m/s north. You see a man approaching you, and from your frame of
solong [7]

Answer:

The velocity of the man from the frame of  reference of a stationary observer is, V₂ = 5 m/s

Explanation:

Given,

Your velocity, V₁ = 2 m/

The velocity of the person, V₂ =?

The velocity of the person relative to you, V₂₁ = 3 m/s

According to the relative velocity of two

                                V₂₁ = V₂ -V₁

∴                               V₂ =  V₂₁ + V₁

On substitution

                                 V₂ = 3 + 2

                                      = 5 m/s

Hence, the velocity of the man from the frame of reference of a stationary observe is, V₂ = 5 m/s

8 0
3 years ago
A 12.0-g bullet is fired horizontally into a 112-g wooden block that is initially at rest on a frictionless horizontal surface a
sergiy2304 [10]
The speed would be in a decimal? Or do you want it in a fraction?
7 0
2 years ago
A student drops an egg from the roof of their house onto a trampoline. The egg feels a change in momentum of 2.2 kg^ * m/s in 1.
geniusboy [140]

Answer:

F = m a = m v / t       where v is the change in velocity in time t

F = p / t       since m v is equal to p

F = 2.2 (kg m / s) / 1.1 s = 2 kg-m / s^2 = 2 N

Or you can use the impulse equation

8 0
2 years ago
Lab report: Magnetic and Electric Fields . physical science edge 2020
katrin2010 [14]
Magnetic fields are an area around a magnetic material or a moving electric charge with which the force of magnet
5 0
3 years ago
Read 2 more answers
An airplane engine starts from rest; and 2 seconds later, it is rotating with an angular speed of 300 rev/min. if the angular ac
elena-s [515]

First of all, we need to convert the angular speed from rev/min into rev/s:

\omega_f=300 rev/min=5 rev/s

The angular acceleration is the variation of angular speed divided by the time:

\alpha=\frac{\omega_f-\omega_i}{t}=\frac{5 rev/s-0}{2 s}=2.5 rev/s^2

And this is constant, so we can use the following equation to calculate the angle through which the engine has rotated:

\theta(t)=\frac{1}{2}\alpha t^2 =\frac{1}{2}(2.5 rev/s^2)(2 s)^2=5 rev

so, 5 revolutions.

3 0
3 years ago
Other questions:
  • When compared to other types of waves, electromagnetic waves differ because they are
    11·1 answer
  • Consider the circuit below, which is powered by a 6-v battery. switch s is opened at t = 0 after having been closed for a long t
    13·1 answer
  • An airplane flies 21 km in 30 minutes. What is its average speed in kilometers per hour?
    10·2 answers
  • A mass weighing 32 pounds stretches a spring 2 feet. Determine the amplitude and period of motion if the mass is initially relea
    15·1 answer
  • At the county fair, Chris throws a 0.12kg baseball at a 2.4kg wooden milk bottle, hoping to knock it off its stand and win a pri
    14·1 answer
  • The work done on a box moved 3 meters by a force of 6 newtons is  newton-meters.
    14·1 answer
  • Which of the following is most likely to be an observation made by a physiologist
    11·1 answer
  • An ice skater is spinning at 6.00 rev/s with his moment of inertia being 0.400 kg/m2. Calculate his new moment of inertia if he
    10·1 answer
  • An electron moving horizontally enters a redion whre a constant manetic fiedld B exists posinit upward. What is tge direction of
    12·1 answer
  • A projectile is launched straight upward at 50 m/s. Neglecting air resistance its speed upon returning to its starting point is:
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!