Answer: Kinetic Energy
Explanation:Kinetic energy is the energy of motion. All moving objects have kinetic energy.
Answer:
no
Explanation:
because if aliens wear alive they would come in England
The work done by tension force of 14N applied on the laptop by a rope as it moves 2.0 mm up the slope is 0.028 J
W = F d cos θ
W = Work done
F = Force
d = Displacement
θ = Angle between force and displacement vector
F = 14 N
d = 2 mm = 0.002 m
θ = 0
W = 14 * 0.002 * 1
W = 0.028 J
Work done is the change in energy of an object. So if an object moves a certain distance, work is done on the object. If the force and displacement are perpendicular to each other there is no work done on the object.
Therefore, the work done by tension on the laptop is 0.028 J
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The tension in the rod when the ratio of speed is 8 is 1.34 × 10⁴ N.
The longitudinal waves speed is determined using the density of the material and the Youngs modulus with the expression:
v = √(Y/rho)
A wave in a stretched string can be used to represent the transverse wave.
The length of the metal rod is 150 cm and the radius of the rod is cm.
The mass of the rod is 50.9 g.
Now, the Youngs modulus for the material is 6.80× 10¹⁰ N/m².
For the longitudinal wave
v(l) = (Y/ρ)^{1/2}
For the transverse wave :
v(T) = (Y/μ)^{3/2}
Now, we need
v(L) / v(T) = 8
And we know,
T = (μY) / (64ρ) where μ= m /L
And the density, ρ = mass / volume = (m) / (πr²L)
Therefore,
T = (πr²Y) / 64
T = (π)(2 × 10⁻³)² × (6.8 × 10¹⁰) / 64
T = 1.34 × 10⁴ N
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