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777dan777 [17]
3 years ago
5

A globe is an example of a physical model true or false

Physics
2 answers:
mars1129 [50]3 years ago
4 0
True. Because you can touch it and it's physically real.
AveGali [126]3 years ago
3 0
True because it shows a physicall form if im right friend me if im wrong dont give me brainliest answer please.

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An ideal air-filled parallel-plate capacitor has round plates and carries a fixed amount of equal but opposite charge on its pla
Vikentia [17]

Answer:

The new energy density is same as initial energy density u0 as it is independent of plate dimensions

Explanation:

As we know that energy density is total energy per unit volume

so we know that isolated plates of capacitor is placed here

C = \frac{\epsilon_0 A}{d}

here we have energy density given as

u = \frac{Q^2}{2(\epsilon_0 A/d)} Ad

so we have

u = \frac{Q^2d^2}{2\epsilon_0}

so it is independent of the dimensions of the plate while total charge on the plates is constant always

so energy density will not change and remains the same

8 0
3 years ago
It takes about 20 seconds for a jet plane to go from rest to the takeoff speed of 100 mph (44.7 m/s). What is the average horizo
Ksju [112]

Answer:

Correct answer:  F = 214.56 N

Explanation:

Given:

V₀ = 0 m/s   initial speed

V = 44.7 m/s  speed after t = 29 seconds

m = 96 kg

F = ?  horizontal force

Taking off an airplane is a uniformly accelerated motion to which the formula applies:

V = V₀ + a t   and  V₀ = 0 m/s

V = a t  ⇒ a = V / t = 44.7 / 20 = 2.235 m/s²

a = 2.235 m/s²

the horizontal force is calculated using the formula:

F = m · a = 96 · 2.235 = 214.56 N

F = 214.56 N

God is with you!!!

4 0
4 years ago
HELPPP WILL GIVE BRAINLIEST!!!!
marishachu [46]

Explanation:

Thermal energy is basically the energy derived from heat when there is a temperature change in a body.

Kinetic energy is the energy due to the motion of a body.

Potential energy is the energy at rest or due to the position of a body.

  • Thermal energy is highly related to kinetic and potential energy.
  • Thermal energy is a type of kinetic energy because it causes the motion of the particles in a body.
  • An increase in thermal energy gives the particles more energy to move and then, their kinetic energy increases.
  • Kinetic energy is directly related to thermal energy.
  • A low thermal energy increases the potential energy in a body.
  • A body at rest will exert its maximum potential energy.

learn more:

Thermal energy brainly.com/question/914750

#learnwithBrainly

4 0
4 years ago
It is recommended that you said at least how many inches away from the airbag ?
Morgarella [4.7K]
10 inches is the correct answer.
4 0
3 years ago
What single resistor could replace 20 Ω, 30 Ω and 50 Ω resistors which have been joined in series ?
MrRa [10]

Answer:

sine the resistors are connected in series, we could add the sum and that single value replaces the individual resistors in series. therefore, 100ohm resistor can do.

3 0
3 years ago
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