What product is formed by a reaction in which the hydrogen atoms of an acid are replaced by
1 answer:
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Answer:
The range of powers is
Explanation:
From the question we are told that
The far point of the left eye is
The near point of the left eye is
The near point with the glasses on is
From these parameter we can see that with the glass on that for near point the
Object distance would be
Image distance would be
To obtain the focal length we would apply the lens formula which is mathematically represented as
substituting values
converting to meters
Generally the power of the lens is mathematically represented as
Substituting values
From these parameter we can see that with the glass on that for far point the
Object distance would be
Image distance would be
To obtain the focal length of the lens we would apply the lens formula which is mathematically represented as
substituting values
converting to meters
Generally the power of the lens is mathematically represented as
Substituting values
This implies that the range of powers of the lens in his glass is
Answer:
-22,150 N
Explanation:
When the youngster jumps off the platform, during the fall her initial potential energy is converted into kinetic energy, according to the law of conservation of energy. Therefore, we can write:
where the term on the left is the potential energy while the term on the right is the kinetic energy, and where
m = 50.0 kg is the mass of the youngster
is the acceleration due to gravity
h = 1.00 m is the heigth of the platform
u is the speed of the youngster as she reaches the floor
Solving for u,
Then, when the youngster hits the floor, the force exerted on her during the deceleration is given by:
where is her change in momentum, and where
m is the mass
v = 0 is the final velocity (she comes to a stop)
u = 4.43 m/s is the initial velocity
is the duration of the collision
Substituting,
And the negative sign means the direction of the force is opposite to the motion (so, upward).