Packages having a mass of 6 kgkg slide down a smooth chute and land horizontally with a speed of 3 m/sm/s on the surface of a co
1 answer:
Answer:
t = 1.02 s
Explanation:
The computation of the time required is shown below:
The package speed for belt is
= 3 - 1
= 2 m/s
Moreover, the decelerative force would be acted on the block i.e u.m.g
So, the decelerative produced
= 0.2 × 9.81
= 1.962 m/s^2
And, final velocity = 0
v = u - at
here
V = 0 = final velocity
u = 2 m/s
so,
0 = 2 - 1.962 × t
t = 1.02 s
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The potential difference comes out to be
Given:
σ = 8. 85 × 10-9 c/m2
we know,
given the potential difference between two equipotential surface=5v
E=∆v
∆d=∆v/E
Thus the potential difference is
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The quantity of heat must be removed is 1600 cal or 1,6 kcal.
<h3>Explanation : </h3>From the question we will know if the condition of ice is at the latent point. So, the heat level not affect the temperature, but it can change the object existence. So, for the formula we can use.
If :
- Q = heat of latent (cal or J )
- m = mass of the thing (g or kg)
- L = latent coefficient (cal/g or J/kg)
If :
- m = mass of water = 20 g => its easier if we use kal/g°C
- L = latent coefficient = 80 cal/g
Q = ... ?
Answer :
So, the quantity of heat must be removed is 1600 cal or 1,6 kcal.
<u>Subject : Physics </u>
<u>Subject : Physics Keyword : Heat of latent</u>
Let's calculate the total charge of M=4.8 g=0.0048 kg of protons.
Each proton has a charge of
, and a mass of 
. So, the number of protons is
And so the total charge of these protons is
So, the neutralize this charge, we must have
electrons such that their total charge is
Since the charge of each electron is
, the number of electrons needed is
which is the same as the number of protons (because proton and electron have same charge magnitude). Since the mass of a single electron is
, the total mass of electrons should be
Each proton has a charge of
So, the neutralize this charge, we must have
Since the charge of each electron is
which is the same as the number of protons (because proton and electron have same charge magnitude). Since the mass of a single electron is