Answer:
K = 3.1 8 × 10⁴ Nm
Explanation:
Given:
m = 68 Kg
x= 2.1 × 10 ⁻² m (in (2.1×10−2 mm) i think m is repeated just like kgkg in the start of question)
g=9.81 m/s²
K= ?
According to Hooke's Law
F = K x
also F=mg
⇒ mg = Kx
⇒ K = mg/x
K= 68 Kg × 9.81 m/s² / 2.1 × 10 ⁻² m
K = 3.1 8 × 10⁴ Nm
Answer: The correct answer is option(B.).
Explanation:
The co-formation theory explain that both moon and the earth are formed at same time from the primitive solar nebula (cloud made up of dust and gases) at the same and same place.
Where as capture theory suggests that the moon is an asteroid which was formed or created somewhere else in a solar system. And when the moon approached the earth planet it got captured by the earth's gravitational field.
Impact theory explains the formation of moon by the catastrophic collision between the earth and any planet half the size of earth's size.
Synchronous theory sheds the light on the rotation time, revolution time and sides of moon located from the surface of the earth.
Hence, the correct answer is option(B).
Answer:
Since light does not actually pass through this point, the image is referred to as a virtual image. Observe that when the object in located in front of the focal point of the converging lens, its image is an upright and enlarged image that is located on the object's side of the lens.
Explanation:
Answer:
B. Both electric fields and forces ...
Explanation:
To answer the problem we would be using this formula which isE = hc/L where E is the energy, h is Planck's constant, c is the speed of light and L is the wavelength
L = hc/E = 4.136×10−15 eV·s (2.998x10^8 m/s)/10^4 eV
= 1.240x10^-10 m
= 1.240x10^-1 nm