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
melomori [17]
2 years ago
15

12.

Physics
1 answer:
Paladinen [302]2 years ago
7 0

Answer:

Solar water heaters are devices that use energy from the sun to heat water. ... This metal surface, placed in contact with the water, will heat the water. Black-painted surfaces that receive the sun's heat become hotter than surfaces of any other color. The black metal plate is called a collector.

You might be interested in
A Truck with a mass of 1500 kg is decelerated At a rate of 5m/s2. how much force did this require
Marianna [84]
(1500 kg)*(5 m/s^2) = 7500 N
6 0
3 years ago
How much force is needed to accelerate a 1,500 kg car at a rate of 8 m/s2?
lesya [120]
Force = mass * acceleration = 1500kg * 8m/s²
3 0
3 years ago
Point P and point charge Q are separated by a distance R. The electric field at point P has magnitude E. How could the magnitude
Angelina_Jolie [31]
<span>We know , E = kQ/r^2 where q = charge and r is separation between point and point charge. Now, At P, E= kQ/r^2 Since, Q can't be changed, we can do that by varying r 2E = 2kq/r^2 2E = kq/ (r/ sqrt2)^2 Hence, if we bring Q closer such that distance between P and Q becomes r/ sqrt 2, E will get doubled.</span>
5 0
3 years ago
Light does not pass through some materials. What do you think happens
Hatshy [7]

Answer:

When an electron is hit by a photon of light, it absorbs the quanta of energy the photon was carrying and moves to a higher energy state. One way of thinking about this higher energy state is to imagine that the electron is now moving faster, (it has just been "hit" by a rapidly moving photon)

A photon is a quantum of EM radiation. Its energy is given by E = hf and is related to the frequency f and wavelength λ of the radiation by. E=hf=hcλ(energy of a photon) E = h f = h c λ (energy of a photon) , where E is the energy of a single photon and c is the speed of light.

7 0
1 year ago
What is te leading cause of type 2 diabetes
Talja [164]
The insulin levels lead to the cause of type 2 diabetes
7 0
3 years ago
Read 2 more answers
Other questions:
  • The diagram shows what happens to a system undergoing an adiabatic process.
    9·2 answers
  • If the position of a body is 3 m, 6 m, 9 m, 12 m at instants 2 s, 4 s, 6 s
    6·2 answers
  • Which statement is correct about an element’s identifying spectrum? a) The light reflected off an element produces a unique iden
    7·2 answers
  • What are two force componentes of projectile motion
    8·1 answer
  • You hold your physics textbook in your hand. (Assume that no other objects are in contact with the book.)
    10·1 answer
  • wink is the seismic station closest to the earthquake. describe two evidences from the seismogram that demonstrates this?
    14·1 answer
  • How many atoms are in NaHCO3
    5·1 answer
  • A rocket is fired vertically upwards starting frkm rest. It accelerates at 30m/s for 4secs. At the end of 4secs it runs out of f
    13·1 answer
  • What did anti-federalist want instead of a permanent national army?
    14·1 answer
  • What sport does not require a high level of fitness
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!