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
Schach [20]
3 years ago
15

What description best describes both mirrors and lenses?

Physics
2 answers:
Kipish [7]3 years ago
8 0
The only reasonable choice from this list is choice-A.
makkiz [27]3 years ago
7 0
<span>A) Mirrors reflect light and lenses refract light.

I just took the test. 

I hope this helps. :)</span>
You might be interested in
If atmospheric pressure on a certain day is 749 mmhg, what is the partial pressure of nitrogen, given that nitrogen is about 78%
VARVARA [1.3K]
The partial pressure of nitrogen is about 584 mmHg.
7 0
3 years ago
12. A volcano erupts on Earth's surface causing a piece of rock with a mass of 95 kg to be ejected from rest to an acceleration
SOVA2 [1]

Answer:

The force exerted on the rock by the eruption is, D. 902.5 N

Explanation:

Given data,

The mass of the rock ejected by the volcano, m = 95 kg

The acceleration of the ejected rock, a 9.5 m/s²

The force acting on an object is defined as the product of the mass and its acceleration. It is given by the relation,

                                 F = m x a

                                    = 95 x 9.5

                                    = 902.5 N

Hence, the force exerted on the rock by the eruption is, F = 902.5 N

4 0
3 years ago
BRAINLYIST ASAPPP write and claim evidence and reasoning statement that explains why mercury and Venus do not have any moons
umka2103 [35]

answer:They are too close to the sun!

Explanation:Because Mercury is so close to the Sun and its gravity, it wouldn't be able to hold on to its own moon. Any moon would most likely crash into Mercury or maybe go into orbit around the Sun and eventually get pulled into it.Same with Venus!

5 0
3 years ago
A child is holding a wagon from rolling straight back down in a driveway that inclined at 20 degree horizontal. if the wagon wei
Alenkinab [10]

Answer:

F = 51.3°

Explanation:

The component of weight parallel to the inclined plane must be responsible for the rolling back motion of the car. Hence, the force required to be applied by the child must also be equal to that component of weight:

F = Parallel\ Component\ of\ Weight\ of\ Wagon= WSin\theta\\

where,

W = Weight of Wagon = 150 N

θ = Angle of Inclinition = 20°

Therefore,

F = (150\ N)Sin\ 20^o

<u>F = 51.3°</u>

8 0
3 years ago
When objects are heated they tend to expand because
densk [106]
Hello!
===
When objects are heated, their molecules tend to vibrate fast. As they vibrate, the space between each atom increases. This keeps on happening, and the object expands until it has cooled down.
===
Hope this helps! :)
5 0
3 years ago
Other questions:
  • Why does a stationary electromagnet attached to an AC source induce current in a wire coil?
    14·1 answer
  • *PLEASE HELP WILL GIVE BRAINLIEST*
    7·1 answer
  • A sample of plutonium-239 decays to one-eighth of its original amount after 7.236 x 104 years. What is its half-life?
    11·1 answer
  • Blood has a density of 1.06 She donates 473.176 mL how much mass does she donate
    14·2 answers
  • The human ear canal is, on average, 2.5cm long and aids in hearing by acting like a resonant cavity that is closed on one end an
    12·1 answer
  • Which two factors does the power of a machine depend on?
    13·1 answer
  • A sample of Iron has a mass of 46.8 grams and a volume of 6 cm 3. what is the density of iron?
    15·1 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
  • Calculate the period of wave whose frequency is 50Hz​
    7·2 answers
  • An 80 N bowling ball has an apparent weight of 60 N when completely submerged in water. What is the average density of the bowli
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!