Radium........ Hope this helps :)
Answer:
a = 9.86 m/s²
Explanation:
given,
distance between the centers of wheel = 156 cm
center of mass of motorcycle including rider = 77.5 cm
horizontal acceleration of motor cycle = ?
now,
The moment created by the wheels must equal the moment created by gravity.
take moment about wheel as it touches the ground, here we will take horizontal distance between them.
then, take the moment around the center of mass. Since the force on the ground from the wheels is horizontal, we need the vertical distance.
now equating both the moment
m g d = F h
d is the horizontal distance
h is the vertical distance
m g d = m a h
term of mass get eliminated
g d = a h
so,
a = 9.86 m/s²
1. C
His theory did not incorporate the existence of subatomic particles.
2. D
Answer:
The visible light frequency is 400 THz to 700 THz, approximately. A THz is a Terahertz, which is a unit of frequency equal to one trillion Hertz.
Visible light is incident perpendicularly on a grating with 340 rulings/mm. 679 is the longest wavelength that can be seen in the m = 4 diffraction.
Waves spreading outward around obstructions is known as diffraction. Sound, electromagnetic radiation like light, X-rays, and gamma rays, as well as very small moving particles like atoms, neutrons, and electrons that exhibit wavelike qualities all exhibit diffraction.
Diffraction's effects can frequently be observed in daily life. The most spectacular diffraction examples include light, such as when a CD or DVD's tightly spaced tracks create the well-known rainbow pattern when viewed from different angles. Waves bend around gaps and barriers due to diffraction.
To learn more about diffraction please visit-
brainly.com/question/12290582
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