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
Pavlova-9 [17]
3 years ago
14

Which material absorbs some colors of light and reflects other colors?

Physics
2 answers:
denpristay [2]3 years ago
5 0

Answer:

Which material absorbs some colors of light and reflects other colors?

a pigment

a dye

an ink

a pastel

 

Explanation:

<em>Photosynthetic organisms contain molecules called </em><u>pigments that absorb only specific wavelengths of visible light, while reflecting others. </u>

<u></u>

<u><em>The answer is</em></u>: <u>A pigment.</u>

Novay_Z [31]3 years ago
4 0
A pigment absorbs some colors of light and reflects other colors.

hope this helps!
You might be interested in
Uncle Harry weighs 750 N. What is his mass in kg?
Elenna [48]

Answer:

W = MG

750 = M * 10

M = 750/10

M = 75 kg

8 0
3 years ago
Read 2 more answers
2.) The lob in tennis is an effective tactic when your opponent is near the net. It consists of lofting the ball over his/her he
Ratling [72]

Answer:

The minimum average speed the opponent must move so that he is in position to hit the ball is approximately 5.79 m/s

Explanation:

The given parameters of the ball are;

The initial speed of the ball = 15 m/s

The direction in which the ball is launched = 50° above the horizontal

The location of the other tennis player when the ball is launched = 10 m from the ball

The time at which the other tennis player begins to run = 0.3 seconds after the ball is launched

The height at which the ball is hit back = 2.1 m above the height from which the ball is launched

The vertical position, 'y', at time, 't', of a projectile motion is given as follows;

y = (u·sinθ)·t - 1/2·g·t²

When y = 2.1 m, we have;

2.1 = (15·sin(50°))·t - 1/2·9.8·t²

∴ 4.9·t² - (15·sin(50°))·t + 2.1 = 0

Solving with the aid of a graphing calculator function, we get;

t = 0.199776187257 s or t = 2.14525782198 s

Therefore, the ball is at 2.1 m above the start point on the other side of the court at t ≈ 2.145 seconds

The horizontal distance, 'x', the ball travels at t ≈ 2.145 seconds is given as follows;

x = u × cos(50°) × t = 15 × cos(50°) × 2.145 ≈ 20.682 m

The horizontal distance the ball travels at t ≈ 2.145 seconds, x ≈ 20.682 m

Therefore, we have;

The time the other player has to reach the ball, t₂ =2.145 s - 0.3 s ≈ 1.845 s

The distance the other player has to run, d = 20.682 m - 10 m = 10.682 m

The minimum average speed the other player has to move with, v_s = d/t₂

∴ v_s = 10.682 m/(1.845 s) ≈ 5.78970189702 m/s ≈ 5.79 m/s

The minimum average speed the opponent must move so that he is in position to hit the ball, v_s ≈ 5.79 m/s.

5 0
3 years ago
An astronaut weighs 104 newtons on the moon, where the strength of gravity is 1.6N/kg. What is her mass?
Leona [35]
Her mass is 65 kilograms
5 0
3 years ago
Read 2 more answers
Which terms describe the motion of most objects in our solar system?
olga2289 [7]

Answer:Geography, Earth Science, Astronomy

Rotation describes the circular motion of an object around its center.

Explanation:

6 0
2 years ago
Read 2 more answers
PLEASE HELP URGENT 10 points
melamori03 [73]

Answer:

Both have the same amount. C.

Explanation:

3 0
3 years ago
Other questions:
  • What happens when velocity and acceleration are at right angles to each other
    6·1 answer
  • You know that there are 1609 meters in a mile. The number of feet in a mile is 5280. How many centimeters equals one inch
    8·1 answer
  • What does the equation
    7·1 answer
  • According to Newton’s First Law of Motion, if a ball is rolled in a straight line in an open field, what will happen to the ball
    5·1 answer
  • You carry a 7.0 kg bag of groceries above the level floor at a constant velocity of 75 cm/s across a room that is room. How much
    9·1 answer
  • Orange light of wavelength 0.61 µ m in air enters a block of glass with εr = 1.44. What color would it appear to a sensor embedd
    8·1 answer
  • sketch a graph of position vs. time for a person starting 0.4 m away and standing still. Include an explanation of your predicti
    8·1 answer
  • The Apollo Lunar Module was used to make the transition from the spacecraft to the moon's surface and back. Consider a similar m
    15·1 answer
  • Which word best completes the sentence?
    11·1 answer
  • How does using heat as a catalyst affect a chemical reaction?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!