U = 0, initial vertical velocity
v = 60 mph = 88 ft/s
Ignore air resistance and take g = 32 ft/s².
It t = time to attain 60 mph, then
(88 ft/s) = (32 ft/s²)*(t s)
t = 88/32 = 2.75 s
Answer: 2.75 s
<u>Question</u> :-
- Two spheres of mass 2 kg and 3 kg respectively are situated so that the gravitational force between them is Calculate the distance between them.
<u>We are given </u>:-
- Mass of first sphere, m = 2 kg
- Mass of second sphere, M= 3 kg
- Gravitational force ,F =
- G = 6.67×10⁻¹¹ Nm²/kg²
We are asked to find distance between them.
- We know that according to gravitational law, we have force of attraction between two bodies is directly proportional to the product of masses of bodies and inversely proportional to the square of distance between them.Which is given by –
<u>Substituting values, we get</u> –
- Henceforth,distance between them will be 12.65 cm.
Hi there!
We can use the equation for the charge of a charging capacitor:
Using Capacitor equations:
Therefore, Cε equals the steady-state charge of the capacitor (the function approaches this value as t ⇒ ∞.
We can plug in the givens and solve.
Answer:
Minimum uncertainty in velocity of a proton,
Explanation:
It is given that,
A proton is confined to a space 1 fm wide,
We need to find the minimum uncertainty in its velocity. We know that the Heisenberg Uncertainty principle gives the uncertainty between position and the momentum such that,
Since, p = mv
So, the minimum uncertainty in its velocity is greater than . Hence, this is the required solution.
It should be gown, mask, gloves, and then goggles!