Answer:Same
Explanation:
Gravitational Potential energy is the function of height i.e. it is proportional to the height gained by an object or in other words work done against gravity is also gravitational Potential energy
For the same mass, if both attained the same height then gravitational Potential energy of both the friends is equal as it does not depend upon the path taken by the person.
Answer:
a)
b)
Explanation:
Given that
Initial velocity u =0 m/s
Speed at 5 s v= 282 m/s
Rocket accelerated up to 5 s :
We know that
v= u + at
282= 0+ a x 5
So the acceleration
Rocket come to rest in 1.4 s :
Final velocity of rocket v=0 m/s
Initial velocity = 282 m/s
v= u + at
0= 282 - a x 1.4
So the deceleration
The energy of a substance is defined as the capacity to do work.The energy may be possessed by the body in various forms.It may be kinetic,potential,magnetic.electric etc.
a- The energy can be transformed from one form to another form.It is called energy conversion.
c-The power defined as the consumption of energy per unit time.
Here E is the energy and W is the work done,t is the time.
d-The S.I unit of energy is Joule[J].
Hence the correct answer to the question is b. the ability to do work
Answer:
Delta pressure = 45938[Pa]
Explanation:
This is a classic bernoulli equation problem, but first we must find the velocity at both ends of the pipe, knowing the diameters of each end.
Now we can calculate the two velocites VA and VB
Using the bernoulli equation we have:
Where ro = density of water = 1000[kg/m^3]
My estimate of brightness,
Number of batteries on a scale of 1 to 10
1 very dim
2 1
3 1 and 1/2
4 6
5 10 for a second, then
the bulb burned out
and changed to zero.