joe spend 8 on lunch and 6.50 on dry cleaning . He also buys 2 shirts that each cost the same smount. joe spend a total of $52 w
1 answer:
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Answer : .
Explanation:
It is given that,
Electric field strength,
We know that,
Charge of electron,
Mass of electron,
From the definition of electric field, ...............(1)
According to Newton's second law, F = ma..........(2)
From equation (1) and (2)
or
So, the horizontal component of acceleration of an electron is .
Hence, it is the required solution.
Answer:
gravitational force
electrostatic force
Explanation:
The forces that balloons may exert on each other can be gravitational pull due to the mass of the balloon membrane and the mass of the gas contained in each. This force is inversely proportional to the square of the radial distance between their center of masses.
The Mutual force of gravitational pull that they exert on each other can be given as:
where:
gravitational constant
are the masses of individual balloons
the radial distance between the center of masses of the balloons.
But when there are charges on the balloons, the electrostatic force comes into act which is governed by Coulomb's law.
Given as:
where:
are the charges on the individual balloons
R = radial distance between the charges.
By definition, the kinetic energy is given by:
Where,
m: mass
v: speed
Clearing the speed we have:
Substituting values:
Answer:
The jogger's velocity is:
v = 4.44 m / s
Where,
m: mass
v: speed
Clearing the speed we have:
Substituting values:
Answer:
The jogger's velocity is:
v = 4.44 m / s