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kiruha [24]
2 years ago
12

Why is a flower not a good blackbody radiator?

Physics
1 answer:
artcher [175]2 years ago
3 0

Answer:

The answer is O C. A flower absorbs most of the light that hits it.

Explanation:

  • <u><em> blackbody radiator is defined as an object that absorbs all electromagnetic radiation that falls on it at all frequencies over all angles of incidence.</em></u>
  • <u><em> No radiation is reflected from such an object. According to thermodynamic arguments embodied in Kirchhoff's law, a good absorber is also a good emitter.</em></u>
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A book falls off a shelf that and hits the ground at 10.0 m/s. How far did it fall?
ELEN [110]

Answer:

Explanation:

14 m/s

Explanation:

The motion of the book is a free fall motion, so it is an uniformly accelerated motion with constant acceleration g=9.8 m/s^2 towards the ground. Therefore we can find the final velocity by using the equation:

where

u = 0 is the initial speed

g = 9.8 m/s^2 is the acceleration

d = 10.0 m is the distance covered by the book

Substituting data, we find

8 0
3 years ago
In Europe, a large circular walking track with a
Elina [12.6K]

Answer: 10.67

Explanation:

First, we needed to calculate the radius and this will be:

= Diameter / 2

= 0.900km / 2

= 0.450km

Since s = 3.00miles, we need to convert it to kilometers and this will be:

1mile = 1.6km

3 miles = 3 × 1.6km = 4.8km

Radians = s/r = 4.8/0.45 = 10.67

4 0
3 years ago
A meteorite strikes the Moon at the speed of 11 km/s. It has KE of 60,500,000 J. What will be its mass?
Vikentia [17]
KE=1/2 mv²
60,500,000 = 1/2 m ( 11,000 m/s )²
60,500,000= 1/2 ( 11,000 )² m
60,500,000= 60,500,000 x m
m= 60,500,000/60,500,000
m= 1 kg
8 0
3 years ago
A 500-watt vacuum cleaner is plugged into a 120-volt outlet and used for 30 minutes. How much current runs through the vacuum?
Ymorist [56]

     Power  =  (voltage) x (current)

       500 W  =  (120 v) x (current)

     Current  =  (500 w) / (120 v)  =  4-1/6 amperes .

Power and current are both rates.
Power is the rate of using energy ... joules per second.
Current is the rate of flowing charge ... coulombs per second.
Neither quantity depends on how long you keep it up.
They're both going on continuously while the vacuum is running.

4 0
4 years ago
Read 2 more answers
. How do you think altering factors like wavelength and frequency affect they way we see and hear? How does this help us underst
sergij07 [2.7K]
Wavelength and frequency are directly related to one another. Low frequency but high wavelength signals tend to be easier to detect. Examples of these signals are the radio waves.

I hope my answer has come to your help. God bless and have a nice day ahead.
3 0
3 years ago
Read 2 more answers
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