Choice-'b' says the formula for kinetic energy in words.
KE = (1/2) · (M) · (S²)
Answer:
51520J
Explanation:
The energy added to the piece of glass is also called heat needed to increase its temperature from 10°C to 50°C and it depends on the mass, specific heat capacity and the change in temperature.
Q=m.c.ΔT
Q=(2kg).(644J/(kg°C)).((50°C)-(10°C))
Q=51520J
It is not an example of kinetic to potential because the dog is already in motion rather then having the potential to do something. Hope this helps!
Explanation:
Given:
v₀ₓ = 15 m/s cos 20° = 14.10 m/s
aₓ = 0 m/s²
v₀ᵧ = 15 m/s sin 20° = 5.13 m/s
aᵧ = -9.8 m/s²
t = 1.5 s
Find: Δx and Δy
Δx = v₀ₓ t + ½ aₓ t²
Δx = (14.10 m/s) (1.5 s) + ½ (0 m/s²) (1.5 s)²
Δx = 21.1 m
Δy = v₀ᵧ t + ½ aᵧ t²
Δy = (5.13 m/s) (1.5 s) + ½ (-9.8 m/s²) (1.5 s)²
Δy = -3.33 m
Answer:
D. You will feel the same weight as you do on Earth
Explanation:
In free space, she is suppose to be weightless.
Free fall can be described as body in motion where the body is under the effect of acceleration due to gravity only and no other acceleration..
Since I am accelerating away from her at an acceleration of 1g
Then,
F=ma, where a=g
Then F=mg
Since my weight on earth is W=mg
This is equals to my weight in the spaceship, then I will feel the same weights as I do on earth.
