Answer:
C
Explanation:
The weight of an object is 1/6 of the earth's weight in the moon
For example if your weight is 54 kg on earth,
Weight on moon=1/6 of 54=1/6 x 54 = 9kg
Answer: 0.075
explanation:
you can use one of the equations of motion.
2as =v^2 - u^2
we shall make acceleration the subject as that's what we need to find out
a = (v^2 - u^2) / (2 × s)
now substitute the given values:
final speed would be zero as the airplane stops.
a = (75 - 0) / ( 2 × 500)
a = 75 ÷ 1000
a = 0.075 meters per second squared.
It would be A. 10 Hertz
A average human can hear between only 20Hz - 20,000Hz
Answer
B. X
A plate of glass or metal ruled with very close parallel lines, producing a spectrum by diffraction and interference of light.
diffraction grating is an optical component that splits and diffracts light into several beams travelling in different directions. The light emerges with its colours separated.
