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
damaskus [11]
3 years ago
14

A(n) ? can be used to represent the direction and strength of a force

Physics
2 answers:
ExtremeBDS [4]3 years ago
6 0
Units of force are the newton pound.
dsp733 years ago
6 0
Units of force are the newton pound.
You might be interested in
The food calorie, equal to 4186 J, is a measure of how much energy is released when food is metabolized by the body. A certain b
d1i1m1o1n [39]
It’s definitely gonna be A
5 0
2 years ago
What does this tell you about the direction and magnitude of the acceleration acting on the cannonball throughout its duration o
Lyrx [107]

Answer:

Direction remains the same but velocity changes.

Explanation:

This tell us about the direction and magnitude of the acceleration acting on the cannonball throughout its duration of flight that its direction remains the same but its magnitude of the acceleration is continuously changing. The cannonball moves in the direction in which the cannon was fired while the velocity is highest after the fire but decreases when goes higher and when it comes back to the ground so its velocity increases against so we can say that both positive and negative acceleration occurs. Positive acceleration means increase in the magnitude of velocity whereas negative acceleration means decrease in velocity.

3 0
3 years ago
An electron is released from rest at a distance of 0.470 m from a large insulating sheet of charge that has uniform surface char
ArbitrLikvidat [17]

Answer:

Part a)

W = 1.58 \times 10^{-20} J

Part b)

v = 1.86 \times 10^5 m/s

Explanation:

Part a)

Electric field due to large sheet is given as

E = \frac{\sigma}{2\epsilon_0}

\sigma = 4.00 \times 10^{-12} C/m^2

now the electric field is given as

E = \frac{4.00 \times 10^{-12}}{2(8.85 \times 10^{-12})}

E = 0.225 N/C

Now acceleration of an electron due to this electric field is given as

a = \frac{eE}{m}

a = \frac{(1.6 \times 10^{-19})(0.225)}{9.1 \times 10^{-31}}

a = 3.97 \times 10^{10}

Now work done on the electron due to this electric field

W = F.d

d = 0.470 - 0.03

d = 0.44 m

So work done is given as

W = (ma)(0.44)

W = (9.11 \times 10^{-31})(3.97 \times 10^{10})(0.44)

W = 1.58 \times 10^{-20} J

Part b)

Now we know that work done by all forces = change in kinetic energy of the electron

so we will have

W = \frac{1}{2}mv^2 - 0

1.58 \times 10^{-20} = \frac{1}{2}(9.1\times 10^{-31})v^2

v = 1.86 \times 10^5 m/s

7 0
3 years ago
How is an image formed by a plane mirror?
Nesterboy [21]
<h3><u>Answer;</u></h3>

Light bounces off of the mirror and then appears to come from behind the mirror.

<h3><u>Explanation;</u></h3>
  • <u><em>Plane mirrors form images that are virtual, upright and the same size and shape as the object it is reflecting.</em></u>
  • <em><u>When rays of light from the object hits a plane mirror they bounces off the mirror,that is they undergo reflection, and appear to originate from behind the mirror, resulting to the formation of a virtual image.</u></em>
  • The image formed appears to be behind the plane in which the mirror lies. A virtual image is an image that is formed at a location from which the rays of light appear to come from. The image can not be formed on a screen.
7 0
3 years ago
Which term refers to the phenomenon of light shining on a metal and causing electrons to break free from their atoms?
netineya [11]
Photoelectric effect.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Africa has _____ countries.
    6·2 answers
  • A car owner forgets to turn off the headlights of his car while it is parked in his garage. If the 12.0-V battery in his car is
    10·2 answers
  • A lead nucleus is spherical with a radius of about 7 ✕ 10⁻¹⁵ m. The nucleus contains 82 protons (and typically 126 neutrons). Be
    14·1 answer
  • Which of the following represents a system that is completely open?
    14·2 answers
  • When you apply a horizontal force of 76 N to a block, the block moves across the floor at a constant speed ().When you apply a f
    11·1 answer
  • Facts or naw:<br> common sense is so rare that it should be a superpower
    14·2 answers
  • Which planet has a density that is less than the density of liquid water?
    15·1 answer
  • A man does 4,780 J of work in the process of pushing his 2.70 103 kg truck from rest to a speed of v, over a distance of 25.5 m.
    7·1 answer
  • A box is being moved with a velocity (v) by a force P (parallel to v) along a level horizontal floor. The normal force is (Fn),
    9·1 answer
  • If you are trying to hit a baseball as far as possible, you would want to:
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!