The magnitude of the resultant momentum can be calculated using the following rule:
p = sqrt [(px)^2 + (py)^2]
px is given to be 100 kg m/sec
py is given to be 98 kg m/sec
Substitute in the above equation to calculate the magnitude of the resultant momentum as follows:
p = sqrt[(100)^2+(98)^2]
p = 140 kg m/sec
I believe the answer is C, scattering of light due to particulates in the atmosphere sending mostly red and orange wavelengths back to our eyes.
"Density" is the ratio of two numbers ... the mass AND the volume of a piece of some material.
If you only have one number, then the density of it is like one scis, or one tweez, or the sound of one hand clapping, or one pant.
Answer:
Explanation:
Let the time taken by the shot to reach to maximum height is t.
initial velocity, vi
angle of projection, θ
Acceleration, g
At maximum height, the vertical component of velocity is zero.
use first equation of motion in vertical motion
Answer:
Explanation:
First, we will calculate the inductance of the solenoid by using the following formula:
where,
L = self-inductance of solenoid = ?
μ₀ = permeability of free space = 4π x 10⁻⁷ N/A²
A = Cross-sectional area = 30 cm² = 3 x 10⁻³ m²
N = No. of turns = 2000
l = length = 65 cm = 0.65 m
Therefore,
Now, we will use Faraday's law to calculate the rate of change of current: