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
Neko [114]
2 years ago
12

HELP ASAP!!!!! ILL MARK YOU BRAINLIEST!

Physics
2 answers:
Julli [10]2 years ago
8 0
Hello! Sorry this is a little late!

The answer to your question would best be option C, y<span>es, because electric charges have electric fields surrounding them that allow them to exert forces on other objects without touching them.

I just took this test, and can 100% confirm this is the correct answer!

Hope this helps, and have a great day! :)</span>
valkas [14]2 years ago
3 0

Answer:

c. Yes, because electric charges have electric fields surrounding them that allow them to exert forces on other objects without touching them.

Explanation:

As we know by Coulomb's law the force of attraction or force of repulsion between two charged bodies is given by

F = \frac{kQ_1Q_2}{r^2}

now we know that

if two charges are of same sign then they will repel each other and if the two charges are of opposite sign then they must attract each other.

So here since two balloons are of negative charge so we can say that electric field on one balloon will repel the charge of other balloon.

So here both balloons will repel each other and correct answer will be

c. Yes, because electric charges have electric fields surrounding them that allow them to exert forces on other objects without touching them.

You might be interested in
If time travel to the future existed, doesn't that mean that the future has already occurred and that we are living in the past?
kodGreya [7K]

Answer:

As of right now the techology has not been invented to time travel

if we were to time travel to the future from where that person travled from would be the past and to them the people from where they came from are living in the past

Explanation:

3 0
2 years ago
In a real system of levers, wheels, or pulleys, the AMA is less than the IMA because _____.
pickupchik [31]
In a real system of levers, wheels, or pulleys, the AMA is less than the IMA because of friction. 
AMA (Actual mechanical advantage) is found by dividing output force by effort force. The actual mechanical advantage will always be less than the ideal mechanical advantage. The ideal mechanical advantage assumes perfect efficiency which doesn't account for friction, while actual mechanical advantage does. Therefore; the IMA is always greater than the actual mechanical advantage because all machines must overcome friction. 
5 0
3 years ago
How long will it take a 2190 W motor to lift a 1.47 x 104 g box, 6.34 x 104 mm vertically.​
Rasek [7]

Answer:

t = 4.17 [s]

Explanation:

We know that work is defined as the product of force by distance.

W = F*d

where:

F = force [N] (units of Newtons)

d = distance = 6.34 x 10⁴ [mm] = 63.4 [m]

In order to find the force, we must determine the weight of the box, the weight can be determined by means of the product of mass by gravitational acceleration.

w = m*g

where:

m = mass = 1.47 x 10⁴ [g] = 14.7 [kg]

g = gravity acceleration = 9.81 [m/s²]

w = 14.7*9.81

w = 144.2 [N]

Therefore the work can be calculated.

W = w*d

W = 144.2*63.4

W = 9142.72 [J] (units of Joules)

Power is now defined in physics as the relationship of work at a given time

P = W/t

where:

P = power = 2190 [W]

t = time [s]

Now clearing t, we have.

t = W/P

t = 9142.72/2190

t = 4.17 [s]

6 0
2 years ago
I need help to figure out how to solve this problem and solve it!!!
wariber [46]

well it looks like the walk at a constant increasing pace then at a constant pace then increaseing pace then constant pace then they slow down then walk at a constant pace then walk at a constantly increasing pace

plz rate me  brainliest

4 0
3 years ago
Read 2 more answers
Which of the following is true of high clouds?
Wewaii [24]
I’m pretty sure it’s B
3 0
2 years ago
Other questions:
  • Use an energy method to derive the equation of motion of the system in Problem 1.112. First with the presence of the damper and
    5·1 answer
  • If a bird applies a 5 N upward force on a branch to lift the branch of ground to a
    11·1 answer
  • Calculate the volume of this regular solid.
    12·2 answers
  • You are a traffic accident investigator. You have arrived at the scene of an accident. Two cars of equal mass (1,000 kg each) we
    5·1 answer
  • Refraction or the bending of waves takes place when a light wave changes A) color. B) frequency. C) intensity. D) speed.
    7·2 answers
  • A car initially traveling at 15 m/s speeds up at a constant rate of 2.0 m/s2 for 3 seconds. The velocity of the car at the end o
    5·1 answer
  • A good alternative to sit ups is<br><br> A. Crunches<br><br> B. Leg Raises<br><br> C. Side Twists
    9·1 answer
  • A: How far did she travel? <br><br><br><br> B: How long did she take?
    12·1 answer
  • Can someone help answer question 8?
    14·2 answers
  • Does dropping a magnet down a copper tube produce a current in the tube? explain your answer.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!