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4 years ago

Extra credit calculate the total mechanical energy of a pendulum as it swings from its highest point to its lowest point

1 answer:

4 0

Is there any numbers to your question?
Keep in mind, the energy is conserved in a pendulum.
Here’s more information:
https://blogs.bu.edu/ggarber/interlace/pendulum/energy-in-a-pendulum/

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VOLLEYBALL TRUE OR FALSE

Volgvan

I play high school volleyball so i know this.

Its: True

True

False

3 0

4 years ago

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Digital thermometers often make use of thermistors, a type of resistor with resistance that varies with temperature more than st

Nezavi [6.7K]

Answer:

The temperature coefficient of resistivity for a linear thermistor is $1.38\times10^{-3}^{\circ}C^{-1}$

Explanation:

Given that,

Initial temperature = 0.00°C

Resistance = 75.0 Ω

Final temperature = 525°C

Resistance = 275 Ω

We need to calculate the temperature coefficient of resistivity for a linear thermistor

Using formula for a linear thermistor

$R=R_{0}(1+\alpha\Delta T)$

$R=R_{0}+R_{0}\alpha\Delta T$

$\alpha=\dfrac{R-R_{0}}{R_{0}\Delta T}$

Put the value into the formula

$\alpha=\dfrac{275-75}{275\times(525-0)}$

$\alpha=1.38\times10^{-3}^{\circ}C^{-1}$

Hence, The temperature coefficient of resistivity for a linear thermistor is $1.38\times10^{-3}^{\circ}C^{-1}$

4 0

3 years ago

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Part A

Makovka662 [10]

Answer:

(A). The magnitude of the momentum of the marble is 0.004745 kg m/s.

(B). The speed of baseball is 23.0 m/s

Explanation:

Given that,

Mass of marble = 0.0073 kg

Speed = 0.65 m/s

(A). We need to calculate the magnitude of the momentum of the marble

Using formula of momentum

$p = mv$

Where, m = mass

v = velocity

Put the value into the formula

$p=0.0073\times0.65$

$p=0.004745\ kg m/s$

(B). Mass of baseball = 0.136 kg

Momentum of baseball = 3.14 kg m/s

We need to calculate the speed of baseball

Using formula of momentum

$p=mv$

$v=\dfrac{p}{m}$

Put the value into the formula

$v=\dfrac{3.14}{0.136}$

$v=23.0\ m/s$

Hence, (A). The magnitude of the momentum of the marble is 0.004745 kg m/s.

(B). The speed of baseball is 23.0 m/s

7 0

3 years ago

The absolute temperature of a sample of monatomic ideal gas is doubled at constant volume. What effect

Advocard [28]

<h3><u>Answer;</u></h3>

Doubles and Remains the same

<h3><u>Explanation;</u></h3>

The effect of doubling the absolute temperature of a sample of a monoatomic ideal gas is that,the pressure doubles and density of the sample of gas remains the same.
<em><u>According to ideal gas equation; PV = nRT; Where P is pressure and V is the Volume, n is the number of moles, R is the ideal gas constant and T is the absolute temperature.</u></em>
<em><u>Therefore, when the temperature of the mono atomic ideal gas is doubled, the pressure of the gas will also doubles.</u></em>
However, in a closed chamber mass of the ideal gas is invariant, since density depends only on the mass and volume therefore the density of the ideal is gas will remain the same.

5 0

3 years ago

This court will hear cases involving U.S. tariff laws.

spin [16.1K]

The court of international trade, because tariffs are taxes upon trade

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3 years ago

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