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Yuri [45]
3 years ago
10

Fariza wears a red hat in her school play. On stage, she is lit by a spotlight shining only green light. When our eyes receive n

o light from an object, it looks black. Explain why Fariza's hat looks black on stage.
Physics
1 answer:
FromTheMoon [43]3 years ago
5 0

Answer:It's how the color mixes together . Red and green both makes a dark color

Explanation:

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snow_tiger [21]
A. The statement is true
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3 years ago
Which of the following best describes a magnetic field? a region around a magnet in which you can measure magnetic forces. a mea
ale4655 [162]
The first one is correct.
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Calculate the Force required to give a bullet of mass 50 g an acceleration of 300 m/s2
NNADVOKAT [17]

Answer:

<h3>The answer is 15 N</h3>

Explanation:

The force acting on an object can be found by using the formula

<h3>Force = mass × acceleration</h3>

From the question

mass = 50 g = 0.05 kg

acceleration = 300 m/s²

We have

force = 0.05 × 300

We have the final answer as

<h3>15 N</h3>

Hope this helps you

7 0
3 years ago
A solid disk has a mass of 162 kg and a radius of 1.30m. This
RideAnS [48]

Answer:

754.3 m

Explanation:

The moment of inertia of the solid disk:

I = mR^2/2

Where m is the disk mass and R is the radius of the disk.

I = 162*1.3^2/2 = 136.89 kgm^2

The angular kinetic energy of the disk is then:

E_k = I\omega^2/2 = 136.89 * 18^2/2 = 22176.18 J

By law of energy conservation, this energy is converted to potential energy to pick up the 3kg block

let g = 9.8 m/s2

E_p = m_bgh = 22176.18 J

where m_b = 3 kg is the mass of block

3*9.8h = 22176.18

h = \frac{22176.18}{3*9.8} = 754.3 m

8 0
3 years ago
Flint glass materials ​
Kipish [7]

Answer:

Flint glass is combination of silicon dioxide (SiO2) with lead or potassium. It creates a relatively high refractive index and high degree of light dispersing power compared to other types of glass.

Explanation:

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3 years ago
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