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
adell [148]
4 years ago
5

A 23 cm tall object is placed in front of a concave mirror with a radius of 37 cm. The distance of the object to the mirror is 8

6 cm. Calculate the focal length of the mirror.
Physics
1 answer:
vovikov84 [41]4 years ago
8 0

Answer:

18.5 cm

Explanation:

From;

1/u + 1/v = 1/f

Where;

u= object distance = 86cm

image height = 23 cm

Radius of curvature = 37 cm

The radius of curvature (r) is the radius of the sphere of which the mirror forms a part.

Focal length (f) = radius of curvature (r)/2 = 37cm/2 = 18.5 cm

Therefore, the focal length of the mirror is 18.5 cm

You might be interested in
The bottom is hard what is the answers
riadik2000 [5.3K]
11. aboard
12. marsh
13. swore
14. starch
15. barge
16.swear
17. coarse

please vote my answer brainliest! thanks.
7 0
3 years ago
Which force acts on the plane at a distance?
shutvik [7]

Answer:

gravity

Explanation:

6 0
3 years ago
When serving a tennis ball, a player hits the ball when its velocity is zero (at the highest point of a vertical toss). The racq
Sindrei [870]

Answer:

<h2> 0.041kg</h2>

Explanation:

Step one:

given data

initial velocity u= 0m/s

Force F= 443N

time t= 4.3 ms= 0.0043seconds

final velocity v= 45.7m/s

Step two:

Required

mass m

we know that the expression for impulse is given as

Ft=mv

make m subject of the formula

m=Ft/v

substitute we have

m=443*0.0043/45.7

m=1.90/45.7

m=0.04kg

The mass of the ball is 0.041kg

6 0
3 years ago
Why is it easier to walk on a carpeted floor than on a smooth polished floor
allochka39001 [22]

Answer:

friction

Explanation:

carpet floor creates for friction

6 0
3 years ago
Read 2 more answers
A stone is thrown from the ground at a speed of 72km / hr. If the wind barrier is not taken into account, how high will the rock
marusya05 [52]

Here's link to the answer:

tinyurl.com/wpazsebu

5 0
3 years ago
Other questions:
  • a bowling ball is rolling down the hall at a constant speed of 1.5 m/s. how far will the ball roll in 6.0 s.​
    6·1 answer
  • What will happen if we jump with the help of parachute on the surface of the moon ?
    8·1 answer
  • Sort each phrase into the type of nonfiction text it describes.
    11·2 answers
  • A football is kicked vertically upward from the ground and a student gazing out of the window sees it moving upward past her at
    14·1 answer
  • Can someone please help me with this? <br>​
    5·1 answer
  • At what value of angle between two vectors will the resultant of the two vectors be maximum?
    14·1 answer
  • Please help me out as soon as you can. Really need help.
    10·1 answer
  • Determine the heat required to raise the temperature of 375g of olive oil from
    7·1 answer
  • In ptolemy’s earth-centered model for the solar system, venus always stays close to the sun in the sky and, because it always st
    14·1 answer
  • a guage is connected to tank in which the pressure of the fluid is 305kpa above atmospheric. if the absolute presssure of the fl
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!