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MA_775_DIABLO [31]
3 years ago
6

A simple pendulum can be used as an altimeter on a plane. how will the period of the pendulum vary as the plane rises from the g

round to its final cruising altitude?
Physics
2 answers:
Rus_ich [418]3 years ago
5 0

Answer:

The period will increase as the altitude increases.

pashok25 [27]3 years ago
3 0
As the plane rises, the distance between the pendulum and the center of the Earth increases which means that the force of gravity is decreased. With that, the swinging of the pendulum will be less restricted. The answer would be, the period of the pendulum will be greater. 
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Which one of the following types of electromagnetic radiation causes certain substances to fluoresce?
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The answer is D. <span>Uv causes more stuff to fouresce </span>
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Three forces that act on a roller coaster:
Andre45 [30]
Yes, all of these could be applied to a roller coaster.
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A car which is traveling at a velocity of 15 m/s undergoes an acceleration of 6.5 m/s2 over a distance of 340 m. How fast is it
fomenos

Answer:68.15m/s

Explanation:

<u><em>Given: </em></u>

v₁=15m/s

a=6.5m/s²

v₁=?

x=340m

<u><em>Formula:</em></u>

v₁²=v₁²+2a (x)

<u>Set up:</u>

=\sqrt{15m/s} ^{2} +2(6.5m/s^2)(340m)

<h2><u><em>Solution:</em></u></h2><h2><u><em>68.15m/s</em></u></h2>

<u />

6 0
3 years ago
Is your increase in gravitational potential energy the same in both cases? When Climbing a mountain on a zigzag path and on a st
baherus [9]

Answer:

The increase in gravitational potential energy is the same in both cases

Explanation:

It is easier to climb a mountain in a zigzag way rather than climbing on a straight line but since the distance is the same ( vertical height ) , mass and gravity is the same. Hence the increase in gravitational potential energy is the same in both cases.

gravitational potential energy = mgh ( same in both cases )

m = mass

g = acceleration due to gravity

h = distance ( vertical height )

7 0
3 years ago
A solenoid that is 66.1 cm long has a cross-sectional area of 13.8 cm2. There are 1410 turns of wire carrying a current of 8.01
Ymorist [56]

Answer:

a) Energy density of the magnetic field, u = 183.46 J/m³

b) Total energy, E = 0.167 J

Explanation:

a) Number of turns in the solenoid, N = 1410

Area, A = 13.8 cm² = 0.00138 m²

Current, I = 8.01 A

Length of the solenoid, l = 66.1 cm = 0.661 m

Energy density, u is given by the formula u = \frac{B^2}{2 \mu_{0} }

Where B is the magnetic field

The magnetic field in a solenoid is given by the formula, B = \frac{N \mu_{0} I }{l}

B = \frac{1410 * 8.01* \mu_{0}  }{0.661}

B = 17086.38 \mu_0 T

u = \frac{(17086.38 \mu_0)^2}{2 \mu_{0} }\\u = \frac{291944527.29 \mu_0^2}{2 \mu_{0} }\\u = \frac{291944527.29 \mu_0}{2  }\\u = \frac{291944527.29 * 4\pi * 10^{-7} }{2  }\\u = 183.46 J/m^3

b) The total energy = Energy density * Volume

E = u V

Volume = Area * Length

V = Al = 0.00138 * 0.661

V = 0.00091218 m³

E = 183.46 * 0.00091218

E = 0.167 J

4 0
3 years ago
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