Answer:
Explanation:
a ) maximum friction possible
= .3 x 30 x 9.8
= 88.2 N
It is friction force which creates acceleration in 30 kg packing case.
Friction force F
F = ma
= 30 x 2.51
= 75.3 N
It will be in north direction , the direction of acceleration.
b ) F = ma
= 30 x 3.63
= 108.9 N
But maximum friction force is 75.3 N , so load will start slipping northward. so friction force will be acting southward.
Friction force = .2 x 30 x 9.8 ( coefficient of kinetic friction applies )
= 58.8 N
towards south .
Answer:
6.37 x 10⁷Hz
Explanation:
Given parameters:
Wavelength = 4.71m
Unknown:
Frequency = ?
Solution:
To solve this problem, we use the expression below:
V = F∧
V is the velocity = 3 x 10⁸m/s
F is the frequency
∧ is the wavelength
3 x 10⁸ = F x 4.71
F = 63694267.52Hz = 6.37 x 10⁷Hz
If the speed of the particle is doubled. Then the value of the momentum also gets doubled.
<h3>What is momentum?</h3>
The sum of an entity's speed and mass is known as its linear momentum, translational momentum, or simply momentum in Newton's laws of motion. It has both a magnitude and a direction, making it a vector quantity. The SI unit of momentum is kg-m / s.
Let m be the mass and v be the velocity of an object. Then the momentum is given as,
P = mv kg-m / s
A particle is moving at a speed less than c / 2. If the speed of the particle is doubled.
P = m(2v)
P = 2mv
If the particle's speed is twice. The momentum's value is then increased by two.
More about the momentum link is given below.
brainly.com/question/24030570
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You will need rocks brick and water.
Are there a list of things to choose from, without that its hard to answer
