Answer:
The height of the ball, h = 81.63 m
The velocity of the ball at the highest point is zero
Explanation:
Given data,
The mass of the ball, m = 1 kg
The initial velocity of the ball, u = 40 m/s
Using the conservation of energy, the total mechanical energy of the ball initially at u = 40 m/s
E = P.E + K.E
E = 0 + ½ mv²
= ½ x 1 x 40²
= 800 J
The maximum height the ball reaches with the energy E = 20 J
The K.E of the ball is zero at the maximum height
E = mgh
h = E / mg
= 800 / (1 x 9.8)
= 81.63 m
The height of the ball, h = 81.63 m
The velocity of the ball at the highest point is zero.
Answer:
Work done = 0.31 J
Explanation:
Radius, r = 10cm = 0.1 m
Mass of the object, m = 50 g = 0.05 kg
Force, F = mg = 0.05 * 9.8
F = 0.49 N
Distance covered by the object = 2πr
Distance moved by the object = 2π*0.1 = 0.63 m
Work done = Force * Distance
Work done = 0.49 * 0.63
Work done = 0.31 J
When blue and orange color are given, then : Blue color has shorter wavelength and more energy as compared to orange.
<h3>What is visible spectrum?</h3>
Visible spectrum is that portion of electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light and human eye responds to wavelengths from about 380 to about 750 nanometers
Visible light comes in all the colors of the rainbow where each color has its own special frequency and wavelength. When all the colors are together, they make "white" light that we see.
Blue light has shorter wavelength more energy whereas orange light has the longer wavelength and low energy.
To know more about visible spectrum, refer
brainly.com/question/4901067
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Both of them experience the same force in magnitude due to newtons third law. however, the one with the smallest mass experiences the greater acceleration due to newtons second law (F=ma) in which a=F/m