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
Vladimir [108]
2 years ago
11

What is the height of the image? Round the answer to the nearest whole number.

Physics
2 answers:
zloy xaker [14]2 years ago
7 0
The Answer is 11 cm and Concave.
irina [24]2 years ago
6 0
Magnification is the ratio of the image's height to object's height or the ratio of image distance to object distance. 
That is; Magnification = height of the image/height of object= image distance/object distance
               = x/4 = 21/8
               x = (21 × 4)/8 
                  = 10.5 cm
The height of the image is 10.5 cm 
The mirror in this case is a concave mirror, since when the object is placed between the principal focus and the concave mirror, it forms a virtual magnified image on the other side ofthe mirror (that is why we have a negative image distance).
You might be interested in
Explain how muscles and bones work together to help bend the arm.
fomenos

Answer:

Bones make sure the arms structure is stable while the muscle is the one actively moving it and carrying out actions.

5 0
2 years ago
A tennis ball is dropped from 1.3 m above
Dominik [7]

Answer:

2.65m/s

Explanation:

Using the equation of motion:

v² = u²+2a∆S where

v is the final velocity

u is the initial velocity

∆S is the change in distance

a is the acceleration

Given

u = 0m/s

a = 9.8m/s²

∆S = 1.3-0.943

∆S = 0.357m

Substituting the given parameters into the formula

v² = 0²+2(9.8)(0.357)

v² = 0+6.9972

v² = 6.9972

v=√6.9972

v = 2.65m/s

Hence the velocity at which it hit the ground is 2.65m/s

4 0
2 years ago
A crate is acted upon by a net force of 100N. An acceleration of 5.0 m/s^2 results. What is the rate of the crate?
andreev551 [17]
Is there any other information given? I don't think you can solve this without a time
6 0
3 years ago
PLEASE HELP ME
hammer [34]

Answer:

Element Is The Answer I think

6 0
2 years ago
Read 2 more answers
Consider the same 70kg/686N student on the surface on another planet from the table above: Jupiter. Tompared to the gravitationa
Yuliya22 [10]

Answer:

Dont mind me

Explanation:

6 0
3 years ago
Other questions:
  • What is the difference between the velocity and the speed of an object?
    14·1 answer
  • Fast Bullets A rifle with that shoots bullets at 420 m/s shoots a bullet at a target 49.8 m away. How high above the target must
    13·1 answer
  • An electrician must decide between 3 heaters. The wire that she is using is rated 15A maximum, anything beyond that is a fire ha
    12·1 answer
  • A frictionless pendulum clock on the surface of the earth has a period of 1.00 s. On a distant planet, the length of the pendulu
    6·1 answer
  • Two equal forces act on two different objects, one of which has a mass ten times as large as the other. The larger object will h
    14·1 answer
  • Calculate the focal length (in m) of the mirror formed by the shiny bottom of a spoon that has a 3.40 cm radius of curvature. m
    13·1 answer
  • In the levers lab when you changed the position of the fulcrum, what else changed?
    8·1 answer
  • Please helpppp meee 20 pts<br> Identify the arrows that show the correct direction of heat transfer.
    5·2 answers
  • The process of losing heat that does not
    10·2 answers
  • Suppose kinetic energy is 4 joules of a moving object what will happen if we increase the speed twice
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!