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
Lyrx [107]
3 years ago
8

A type of star called a red dwarf gets its name because it is a relatively small star that appears redder than the Sun when view

ed through a telescope. Red dwarfs, therefore, _____ more red light than stars like the Sun. A. emit B. reflect C. absorb D. transmit
Physics
1 answer:
weeeeeb [17]3 years ago
5 0

Answer:

option (b) reflect

make me brainliest

You might be interested in
3 facts about the concept or term of tectonic plates 
Agata [3.3K]
1) Plates movement happens very slowly.
2) The earth's lithosphere is divided into pieces
3) they are caused by convection currents in the asthenosphere (upper mantle)

8 0
2 years ago
1.3 kg of water, at an initial temperature of 25oC, is heated at a rate of 100 W in a well-insulated container. How much time (i
Leviafan [203]

Answer:

68.25 minutes.

Explanation:

Power = Energy/time or

Power = Heat/time

P = Q/t....................... Equation 1

Q = Pt ........................ Equation 2

Where Q = quantity of heat, P = power, t = time.

Also,

Q = cm(t₂-t₁) ................. Equation 3

Where c = specific heat capacity of water, m = mass of water, t₁ = initial temperature of water, t₂ = final temperature of water.

substitute equation 2 into equation 3

Pt = cm(t₂-t₁) ............... Equation 4

make t the subject of the equation

t = cm(t₂-t₁)/P................ Equation 5

Given: P = 100 W, m = 1.3 kg, t₁ = 25 °C, t₂ = 100 °C.

Constant: 4200 J/kg.K

Substitute into equation 5

t = 1.3(4200)(100-25)/100

t = 409500/100

t = 4095 seconds

t = (4095/60) minutes = 68.25 minutes.

Hence the time it will take the water to reach boiling point = 68.25 minutes

6 0
3 years ago
não é difícil de perceber uma relação aditiva entre os termos consecutivos (1;3;6;10...)(A)qual é o sexto e décimo número triang
EastWind [94]
It is 15 and 45 ............
7 0
3 years ago
A charge of 90 C passes through a wire in 1 hour 15 minutes . what is the current in the wire
timurjin [86]
We calculate current from the formula:
I= \frac{q}{t} , where q is a electric charge transferred over time t 
Time should be converted to seconds:
1h 15 min= 75min= 4500s
I=\frac{90C}{4500s}=0,02A Result is in unit-Ampere
5 0
2 years ago
Read 2 more answers
I'll give brainiest. <br> Approximate how many times greater Saturn's mass is than Mercury's.
Vsevolod [243]

Mass of the saturn = 5.683 × 10^26 Mass of the mercury = 3.285 × 10^23

4 0
3 years ago
Read 2 more answers
Other questions:
  • A bag of cement weighing 325 N hangs in equilibrium from three wires. Two of the wires make angles of theta1=60.0 degrees and th
    6·1 answer
  • Which type of bond forms when two or more atoms share electrons?
    5·1 answer
  • The terminal velocity of a person falling in air depends upon the weight and the area of the person facing the fluid. Find the t
    14·1 answer
  • A capacitor with an initial potential difference of 100 V isdischarged through a resistor when a switch between them is closed a
    13·1 answer
  • As pressure increases, temperature must ______________ for water to remain in a gaseous state.
    15·1 answer
  • Zamir and Talia raced through a maze. Zamir walked 2 m north, 2 m east, 4 m south, 2 m east, 4 m north, 2 m east, 3 m south, 4 m
    11·2 answers
  • According to Kepler's Second Law the radius vector drawn from the Sun to a planet Multiple Choice is the same for all planets. s
    6·1 answer
  • If 2,575J of heat is added to a 250g piece of silver, the change in temperature of the silver will be 43.6 °C? What is the speci
    8·2 answers
  • Ask For
    8·1 answer
  • What causes global winds?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!