that it will certainly keep a continuous thrust of 12.3 N 12.3 N till the engine is used up. Robert launches the rocket on a windmuch less day, so that it travels directly up, and also offers his laser range‑finder to meaure that the height of the rocket as soon as the engine cuts off is 10.2 m 10.2 m . He likewise procedures the rocket"s peak elevation, which is 14.7 m 14.7 m . If the rocket has actually a mass of 0.663 kg 0.663 kg , just how a lot work is done by the drag force on the rocket during its ascent?

jiyuushikan.org:

The work done by the drag force is provided by 29.96 J

Explanation:

Given :

Thrust force

*
N

Displacement

*
m

Mass of rocket

*
Kg

From job-related energy theorem,

*

*

Wright here

*
thrust occupational
*
gravitational work

*

*

After cutoff kinetic energy is converted into potential power,

*

Placed worth of KE

*

Work done by drag force is provided by,

*

*
J

Because of this, the occupational done by the drag force is provided by 29.96 J



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Explanation:



A parallel-plate capacitor of plate separation d is charged to a potential difference V0. A dielectric slab of thickness d and also d

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Explanation:

(1.a)

Write the expression for old parallel plate capacitor.

*

The expression of power stored in the capacitor without any type of dielectric in between the plate is:

*

Substitute

*
for C

*

Supply resource is same therefore, the potential distinction is continuous. So, the power stored is:

*

Write the expression for new parallel plate capacitor.

*

Substitute

*
for C" in expression
*

*

From equation (1) and also (2).

*

The proportion of power stored after the dielectric is introduced to the power stored in the empty capacitor is

*

(1.b)

Write the expression for the capacitor

*
.

*

The expression for the power stored by the capacitor is:

*

Substitute

*
for C.

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*

When the distance in between the plates is boosted and also the potential difference in between the plates remains consistent, then energy stored by the capacitor decreases. Similarly, if the distance in between the plates decreases and potential continues to be continuous, then energy stored by the capacitor is boosted.