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
Brrunno [24]
3 years ago
14

Calculate magnitude and direction of the force between a 1.4 X 10 -3 C charge and a 9.1 X 10 -4 charge when they are separated b

y 4.8 m.
Physics
1 answer:
ASHA 777 [7]3 years ago
5 0

Answer:

The magnitude and direction of the force between the two charges is 497.66 N in opposite direction.

Explanation:

From the question given above, the following data were obtained:

Charge 1 (q₁) = 1.4×10¯³ C

Charge 2 (q₂) = 9.1×20¯⁴ C

Distance apart (r) = 4.8 m

Force (F) =?

NOTE: Electric constant (K) = 9×10⁹ Nm²/C²

The magnitude of the force between the two charges can be obtained as follow:

F = Kq₁q₂ / r²

F = 9×10⁹ × 1.4×10¯³ × 9.1×20¯⁴ / 4.8²

F = 11466 / 23.04

F = 497.66 N

Thus, the magnitude of the force is 497.66 N.

Since both charges has the same sign (i.e they both positive), the force between them will be a force of repulsion. Hence the force will be in opposite direction.

You might be interested in
Four charges of magnitude +q are placed at the corners of a square whose sides have a length d. What is the magnitude of the tot
guapka [62]

Answer:

F = \frac{4kqQb}{(b^2 + \frac{d^2}{2})^{1.5}}

Explanation:

Since all the four charges are equidistant from the position of Q

so here we can assume this charge distribution to be uniform same as that of a ring

so here electric field due to ring on its axis is given as

E = \frac{k(4q)x}{(x^2 + R^2)^{1.5}}

here we have

x = b

and the radius of equivalent ring is given as the distance of each corner to the center of square

R = \frac{d}{\sqrt2}

now we have

E = \frac{4kq b}{(b^2 + \frac{d^2}{2})^{1.5}}

so the force on the charge is given as

F = QE

F = \frac{4kqQb}{(b^2 + \frac{d^2}{2})^{1.5}}

3 0
3 years ago
What are the results of habitat loss? choose the most likely outcome
zmey [24]
The Answer that makes the most sense is C.
5 0
2 years ago
Read 2 more answers
The maximum energy a bone can absorb without breaking is surprisingly small. For a healthy human of mass 60 kg60 kg, experimenta
netineya [11]

Answer:

<em>the maximum height a man can jump from and land rigidly upright on both feet without breaking his legs is 0.34 m</em>

<em></em>

Explanation:

Mass of a healthy man = 60 kg

energy the bone can take without breaking = 200 J

If a healthy man jumps from a height 'h', he falls with an energy equal to the potential energy due to his initial height above the ground.

initial potential energy of the healthy man = mgh

where m = mass of the man

g = acceleration due to gravity = 9.81 m/s^2

h = the height above ground

==> PE = 60 x 9.81 x h = 588.6h

If we assume that all energy is absorbed in the leg bones in a rigid landing, then we can safely say that this calculated PE for a healthy man is equal to the energy his bone can absorb in the jump without breaking.

equating, we have

200 = 588.6h

<em>the maximum height a man can jump from without breaking his legs = 200/588.6 = 0.34 m</em>

When people jump from a height, the sudden deceleration to zero can impact a big force on the leg bones, shattering them. If the time spent in decelerating to zero is increased, the overall force on the leg bones is reduced greatly.

<em>Bending the knees gradually on landing from a jump from a height, and then rolling increases the time spent decelerating, and reduces the impact force on the legs due to the landing</em>. If you observe carefully you will see that this is what professional stunts men and acrobats do when they jump from a height.

5 0
3 years ago
Calculate the orbital period of a dwarf planet found to have a semimajor axis of a = 4.0x 10^12 meters in seconds and years.
padilas [110]

Explanation:

We have,

Semimajor axis is 4\times 10^{12}\ m

It is required to find the orbital period of a dwarf planet. Let T is time period. The relation between the time period and the semi major axis is given by Kepler's third law. Its mathematical form is given by :

T^2=\dfrac{4\pi ^2}{GM}a^3

G is universal gravitational constant

M is solar mass

Plugging all the values,

T^2=\dfrac{4\pi ^2}{6.67\times 10^{-11}\times 1.98\times 10^{30}}\times (4\times 10^{12})^3\\\\T=\sqrt{\dfrac{4\pi^{2}}{6.67\times10^{-11}\times1.98\times10^{30}}\times(4\times10^{12})^{3}}\\\\T=4.37\times 10^9\ s

Since,

1\ s=3.17\times 10^{-8}\ \text{years}\\\\4.37\times 10^9\ s=4.37\cdot10^{9}\cdot3.17\cdot10^{-8}\\\\4.37\times 10^9\ s=138.52\ \text{years}

So, the orbital period of a dwarf planet is 138.52 years.

3 0
3 years ago
1. How is a whistling teapot like a volcano?
oksano4ka [1.4K]
Because of the build up of pressure. There is so much steam coming from such a compressed point, it’s coming out in force.

Now think of that same spot being closed, it only has one place to go but it can’t leave, so that pressure will build and build and then BOOM, it explodes.

In short, the answer is the pressure being released from a small point, and how that energy is released.
8 0
3 years ago
Read 2 more answers
Other questions:
  • When using science to investigate physical phenomena, which characteristic of the event must exist?
    13·1 answer
  • On which factor does the inertia of rest depends​
    5·1 answer
  • What causes a hypothesis to be rejected?
    8·1 answer
  • A tumbleweed is moving with a velocity of 5.4 m/s westward. A sudden gust of wind blows for 1.5 seconds and reduces its velocity
    15·1 answer
  • An 8 kg toddler is running at a speed of 10 m/s.<br> how much energy does he have?
    14·1 answer
  • What is the current in a circuit that has a resistance of 75Ω and a voltage drop of 120V across the cell? (I'll give brainliest!
    5·1 answer
  • .
    13·1 answer
  • When Beakman lets go of Liza and she starts moving her stored _____ changed into ____ energy.
    9·1 answer
  • A 4.5 kg box is being pulled by a girl using a string that makes an angle of 20° horizontal. Find the force of friction if the f
    13·1 answer
  • (e) For photons of energy 7.10 eV, what stopping potential would be required to arrest the current of photoelectrons
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!