The correct answer for the question that is being presented above is this one: "action force." Using a hammer to drive a nail, it is the reaction force that brings the motion of the hammer to a stop but the action force that drives the nail into the wood.
Explanation:
The reaction force is what presents you drive because it acts on you. Newton's Third Law of Motion describes that forces perpetually come in action-reaction pairs. The Third Law states that for every action force, there is an identical and opposite reaction force. The ball exerts an equal and opposite force on the bat.
Answer:
Explanation:
For critical angle C the relation is
SinC = 1 / μ where μ is refractive index of denser medium with respect to rarer medium .
In case of A , refractive index of denser medium with respect to rarer medium .is equal to 1.33 / 1 = 1.33
In case of B , refractive index of denser medium with respect to rarer medium .is equal to 2.42 / 1 = 2.42
In case of C , refractive index of denser medium with respect to rarer medium .is equal to 2.42 / 1.33 = 1.82
In case of D , refractive index of denser medium with respect to rarer medium .is equal to 1.50 / 1.33 = 1.127
In case of D , refractive index is lowest , critical angle will be highest .
In case of B , refractive index of denser medium with respect to rarer medium .is highest so critical angle will be lowest.
Ranking from largest to smallest
D > A >C >B .
Answer:
The outside layer is the wettest.
Explanation:
Use this formula for an object starting from rest and accelerating:
Distance = (1/2) (acceleration) (time)²
In this problem, the distance is 40 meters, and acceleration is gravity.
So . . .
40 m = (1/2) (9.8 m/s²) (time)²
Divide each side by (4.9 m/s²) :
time² = (40 m) / (4.9 m/s²)
time² = 8.16 sec²
Take the square root of each side :
√(time²) = √(8.16 sec²)
time = 2.86 seconds
Round it to 2.9 sec <em>(choice B)</em>
Answer:
atoms and neutrons
Explanation:
electrons have a negative charge
protons have a positive charge
cations are positive ions
anions are negative ions