All categories

3 years ago

What is true about the force between charges?

Physics

1 answer:

egoroff_w [7]3 years ago

8 0

Explanation:

The force between two charges is given by :

$F=\dfrac{kq_1q_2}{r^2}$

k is electrostatic constant

r is distance between charges

The force between charges is directly proportional to the product of charges and inversely proportional to the square of the distance between them.

You might be interested in

Inside a freely falling runaway elevator, your

nasty-shy [4]

The answer is apparent weight is zero.

You are still accelerating downwards at 9.8m/s^2 (if you are on Earth).

You still are being affected by the Earth's gravity.

Not all because of the previous two statements.

Not none because apparent weight is zero as you are falling.

7 0

4 years ago

Read 2 more answers

A girl is walking a dog. The tension force applied to the dog is 20 N. If the mass of the dog is 25

Mrac [35]

Umm what’s the question

8 0

3 years ago

Which statements correctly describe laws? Check all that apply. Laws are created based on repeated experimentation. Laws are bas

dedylja [7]

Laws are created based on repeated experimentation
Laws are based on observations
Laws are factual statements

4 0

3 years ago

The fossils in this group were collected from limestone and shale rocks. based on what you have learned about the formation of t

saw5 [17]

The type of environment that the Organisms lived in is usually in shallow sea or the sea floor.
Both of them are deposited in deep marine environment and accumulated by floating organisms

7 0

4 years ago

Read 2 more answers

White light, with frequencies ranging from 4.00 x 10^14 Hz to 7.90 x 10^14 Hz, is incident on a barium surface. Given that the w

REY [17]

Answer:

0.7515875 eV

$4\times 10^{14}\leq f$

Explanation:

f = Maximum frequency = $7.9\times 10^{14}\ Hz$

h = Planck's constant = $6.626\times 10^{-34}\ m^2kg/s$

W = Work function = 2.52 eV

Converting to Joules

$W=2.52\times 1.6\times 10^{-19}\\\Rightarrow W=4.032\times 10^{-19}\ J$

Maximum photon energy is given by

$E=hf\\\Rightarrow E=6.626\times 10^{-34}\times 7.9\times 10^{14}\\\Rightarrow E=5.23454\times 10^{-19}\ J$

Maximum Kinetic energy is given by

$K=E-W\\\Rightarrow K=5.23454\times 10^{-19}-4.032\times 10^{-19}\\\Rightarrow K=1.20254\times 10^{-19}\ J$

Converting to eV

$1.20254\times 10^{-19}\times \frac{1}{1.6\times 10^{-19}}=0.7515875\ eV$

The maximum kinetic energy of electrons ejected from this surface is 0.7515875 eV

$W=hf\\\Rightarrow f=\frac{W}{h}\\\Rightarrow f=\frac{4.032\times 10^{-19}}{6.626\times 10^{-34}}\\\Rightarrow f=6.08512\times 10^{14}\ Hz$

The range of frequencies for which no electrons are ejected is

$4\times 10^{14}\leq f$

5 0

3 years ago

What is true about the force between charges?​

What is true about the force between charges?