Answer:
True statements:
Power is the rate at which work is done.
Power is the rate at which energy is transformed.
The SI unit of power is watt.
A person is limited in the total work he or she can do by the rate at which energy can be transformed.
Explanation:
The above statements are true.
1. Power is defined as the rate at which work is done.
2. Power is the rate at which energy is transformed. Whenever energy changes its form, or moves from one place to another, the rate at which it makes those changes is described as power.
3. The SI Unit of power is watts. If 1 joule of energy is converted by an object in 1 second then its power is called one watt.
So, the statement<em> 'the SI unit of power is the horsepower' is</em> false.
4. A person is limited in the total work he or she can do by the rate at which energy can be transformed i.e, his power. He is not only limited by the total energy required.
So, the statement <em>'A person is limited in the total work he or she can do only by the total energy required'</em> is not completely true.
Net flux through the cylindrical surface is given as

here q = enclosed charge in the surface
so here in order to find the value of q

so now we have

so this is the total flux
now by Gauss's law we can find the electric field




<em>by above expression we can find the electric field at required position</em>
Answer:
P=627.47W
Explanation:
To solve this problem we have to take into account, that the work done by the winch is

the force, at least must equal the gravitational force

with force the tension in the cable makes the winch go up.
The work done is

To calculate the power we need to know what is the time t. But first we have to compute the acceleration
The acceleration will be

and the time t

The power will be

HOPE THIS HELPS!!
Answer:
7500 m/s
Explanation:
Centripetal acceleration = gravity
v² / r = GM / r²
v = √(GM / r)
Given:
G = 6.67×10⁻¹¹ m³/kg/s²
M = 5.98×10²⁴ kg
r = 6.8×10⁵ + 6.357×10⁶ = 7.037×10⁶ m
v = √(6.67×10⁻¹¹ (5.98×10²⁴) / (7.037×10⁶))
v = 7500
The orbital velocity is 7500 m/s.
Answer:
V=516πin^2
Explanation:
you must replace a, b, and c in the first formula for the python egg
a=2inches
b=2inches
c=3inches
REPLACING IN THE ORIGINAL EQUATION
V=43πabc
V=43π(2)(2)(3)
V=43(12)π
V=516πin^2
The volume of the piton egg is 516π in^2