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
AveGali [126]
3 years ago
8

(ix) A pin hole camera gives a sharp image because;

Physics
2 answers:
sdas [7]3 years ago
8 0

Answer:

d) The screen is in a short distance from the hole

loris [4]3 years ago
4 0

Answer:

the screen is in a short distance from the hole

Explanation:

(d) option is correct

You might be interested in
Calculate the acceleration of a car that is maintaining a constant velocity of 1m/s
lora16 [44]
"Constant velocity" is another way of saying "zero acceleration".
5 0
3 years ago
Read 2 more answers
Two identical conducting spheres, A and B, carry equal charge. They are stationary and are separated by a distance much larger t
podryga [215]

Answer:

8F_i = 3F_f

Explanation:

When two identical spheres are touched to each other, they equally share the total charge. Therefore, When neutral C is first touch to A, they share the initial charge of A equally.

Let us denote that the initial charge of A and B are Q. Then after C is touched to A, their respective charges are Q/2.

Then, C is touched to B, and they share the total charge of Q + Q/2 = 3Q/2. Their respective charges afterwards is 3Q/4 each.

The electrostatic force, Fi, in the initial configuration can be calculated as follows.

F_i = \frac{1}{4\pi\epsilon_0}\frac{q_Aq_B}{r^2} = \frac{1}{4\pi\epsilon_0}\frac{Q^2}{r^2}[/tex}The electrostatic force, Ff, in the final configuration is [tex]F_f = \frac{1}{4\pi\epsilon_0}\frac{q_Aq_B}{r^2} = \frac{1}{4\pi\epsilon_0}\frac{3Q^2/8}{r^2}[/tex}Therefore, the relation between Fi and Ff is as follows[tex]F_i = F_f\frac{3}{8}\\8F_i = 3F_f

7 0
3 years ago
How are the forces observed related to the motion of the earth around the sun
Inga [223]

This question sounds like it came after some activity where
some forces were observed.  Since we were not there, and
we don't know what the activity was, we don't know what forces
were observed, and we have no clue to how they might be related
to the motion of the Earth around the sun.

7 0
3 years ago
How to solve the problem
erica [24]
If you're looking for distance, you have to multiply the time and speed.

0.75 × 45 = 33.75

The rabbit hopped 33.75 m.
5 0
3 years ago
Read 2 more answers
What’s the difference between the resistance of 1,000 feet of aluminum No. 14 wire and 1,000 feet of No. 14 copper wire? A. The
Lapatulllka [165]

the answer is A. The aluminum has 0.84 ohms more resistance.

3 0
3 years ago
Other questions:
  • What is the main purpose of trying to quickly cool heated food?
    14·1 answer
  • Before the widespread use of computers, how was the epicenter of an earthquake determined?
    14·2 answers
  • Initially, 0.05kg of air is contained in a piston cylinder device at 200 oc and 1.6 mpa. the air then expands at constant temper
    6·1 answer
  • Marissaâs car accelerates uniformly at a rate of +2.60 m/s². How long does it take for Marissaâs car to accelerate from a speed
    11·1 answer
  • Which of the following is a field force
    5·1 answer
  • The chilled water system for a 27-story building has a pump located at ground level. The lost head in a vertical riser from the
    13·1 answer
  • For a constant resistance, how is the voltage related to the current?
    15·2 answers
  • Please help <br>will give the brainliest!<br>please answer correctly.<br>Urgent!!!!!!!!!!!!<br>​
    11·1 answer
  • You leave a pastry in the refrigerator on a plate and ask your roommate to take it out before youget home so you can eat it at r
    15·1 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
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!