Answer:2987.7 J
Explanation:
Given
sled weight is 
Tension in rope 
Time interval 
velocity of sled 
here speed is equal to velocity which is constant therefore acceleration is zero
thus 
Distance traveled in
considering surface to be friction less
thus 
will do work on sled
Answer:
A. The signal travels through the nerve of the hand to the spinal cord and then to the brain.
Explanation:
Answer:
21.5°
Explanation:
Given,
Refractive index of water, n₁ = 1.33
Refractive index of polystyrene, n₂ = 1.49
Angle of reflection = ?
Angle of refraction = 19.1°
Using Snell's law
n₁ sin θ₁ = n₂ sin θ₂
1.33 x sin θ₁ = 1.49 x sin 19.1°
sin θ₁ = 0.366
θ₁ = 21.5°
According to law of reflection angle of incidence is equal to angle of reflection.
Angle of reflection = 21.5°
Answer:
it states that energy can neither be created or destroyed
Probably not what you were expecting... the average bottle of water is 24 ounces. 5 milliliters is about the amount of water in a spoon. Hope this helps!!!
