Answer:
(iv), (v), (vi) would be incorrect.
Explanation:
(iv) Force isn't transferred from one colliding object to another, but momentum can be.
(v) An object doesn't stop immediately a force stops acting on it. Think of a thrown ball.
(vi) For an object not to move, it means that the net force on the object is zero, and not necessarily that there are no forces acting on the object. For example, an object could be pushed on one side, and be pushed on the other side with an equal force in the opposite direction. The forces would cancel each other and the net force would be zero.
The rest should be correct.
As the balls continue to accelerate to the ground, the distance between them before the first ball hits the ground will increase.
<h3>What is acceleration?</h3>
Acceleration is defined as the rate change of velocity with time.
acceleration a = (Δv) / (Δt)
Two identical heavy balls are dropped from the top of the Leaning Tower of Pisa. The second ball is dropped 1 s after the first ball. The first ball start falling 1s earlier than the second ball. Thus, the acceleration for first ball will be greater than the second ball.
Thus, the distance between them before the first ball hits the ground will increase.
Learn more about acceleration.
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Answer:
the voltage across the resistor is V= 0
Explanation:
The correct answer is zero.
The answer is zero because the inductor acts as open circuit.
![i= i_0[1-e^{-\frac{t}{\tau} }]](https://tex.z-dn.net/?f=i%3D%20i_0%5B1-e%5E%7B-%5Cfrac%7Bt%7D%7B%5Ctau%7D%20%7D%5D)
i_o= maximum current
\tau= L/R= time constant
i= current at any instant
![V= V_0[1-e^{-\frac{t}{\tau} }]](https://tex.z-dn.net/?f=V%3D%20V_0%5B1-e%5E%7B-%5Cfrac%7Bt%7D%7B%5Ctau%7D%20%7D%5D)
at t=0 at the moment when contact is made
V=V_o[1-1]
⇒V= 0 V
Answer:
See below
Explanation:
100 km / 45 km/hr = 2.222 hr
100 km / 30 km/hr =3.3333 hr
Difference = 1.111 hr = 1 hr 6 2/3 min
An element's <u>Period</u> is it's row in the periodic table.
