Answer: A.
Lithium sulfide is the inorganic compound with the recipe Li2S. It solidifies in the antifluorite theme, depicted as the salt (Li+)2S2−. It frames a strong yellow-white deliquescent powder. In air, it effectively hydrolyses to deliver hydrogen sulfide (spoiled egg scent).
Kinetic energy is energy in motion and potential energy is energy that is stored.
The force exerted on her is 1700 N
Explanation:
First of all, we start by calculating the acceleration of the car. Since its motion is a uniformly accelerated motion, we can use the following suvat equation:
where
v = 0 is the final velocity of the car (which comes to a stop)
u = 14.0 m/s is the initial velocity
a is the acceleration
s = 3.0 m is the distance covered by the car during the collision
Solving for a,
And the negative sign means it is a deceleration.
Now we can find the force exerted on the passenger during the collision, using Newton's second law:
where
F is the force
m = 52.0 kg is the mass of the passenger
is the acceleration (we ignore the sign since we are only interested in the magnitude of the force)
Substituting,
Learn more about acceleration and forces:
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The 'plum pudding' model of the atom was proposed by JJ Thomson, who had also discovered the electron. It was put forth before the discovery of the nucleus. According to this model, the atom is a sphere of positive charge, and negatively charged electrons are embedded in it to balance the total positive charge