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oee [108]
3 years ago
8

How much energy is required to change a 44 g

Physics
1 answer:
zlopas [31]3 years ago
4 0

Answer:

Ang answer units of J heat of fusion is 3.33 x 105

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If two different substances, with the same mass (1 gram) absorb the same amount of energy, which of the following can be predict
Makovka662 [10]

If two different substances, with the same mass (1 gram) absorb the same amount of energy "the temperature of the substance with the lower specific heat will increase more than the one with a higher specific heat".

Option B

<u>Explanation:</u>

The thermodynamic function that specifies the amount of heat needed by one degree of temperature for a single unit of mass of a material to be elevated is understood as "Specific heat". Depending on the extent to which they absorb heat, various levels of specific heat values are seen for the materials.

The heat transferred relies on three factors: temperature change, weight of the device, material change and stage of the material. The average temperature of the molecules increases as the material heats up, so when they collide they are more likely to contribute enough energy to cause rotation and vibration to happen as the energy moves to a higher state.

8 0
3 years ago
A series circuit has a 100-Ω resistor, 4.00-mH inductor and a 0.100-μF capacitor connected across a 120-V rms ac source at the r
scZoUnD [109]

Answer:

144 watt

Explanation:

resistance, R = 100 ohm

L = 4 mH

C = 100 micro farad

At resonance, the impedance is equal to R

Z = R

Vrms = 120 V

Irms = Vrms / R = 120 / 100 = 1.2 A

Power is given by

P = Vrms x Irms x CosФ

Where, CosФ is called power factor

At resonance, CosФ = 1  

Power, P = Irms x Vrms

P = 1.2 x 120 x 1

P = 144 Watt.

Thus, the power is 144 watt.

6 0
4 years ago
A metal sphere has a charge of +10C. What is the net charge after 8.0 x 10^13 electrons have been placed on it?
masya89 [10]

Answer: 9.9999872 C

Explanation: In to answer this question we have to use the charge of the electron, that is eqaul to -1.6*10^-19 C.

After that, we have to calculate the charge given by 8.0*10^13 electrons, then we an additional charge of: 8.0*10^13 * -1,6*10^-19 C=1.28*10^-5C

Finally the net charge of the metal sphere, initially charged by +10C is:

10C-1.28*10^-5C=9.9999872 C

3 0
4 years ago
What principle of joint operations entails expending minimum essential combat power on secondary efforts in order to allocate th
iVinArrow [24]
The principle of  joint operations that entails expending minimum essential combat power on secondary efforts in order to allocate the maximum possible combat power on primary efforts is called the economy of force. It is one of the principles of war that is based on Clausewitz's approach.  The economy of force is the principle where we employ all of the available combat power in a way that is the most effective as much as possible, attempting to allocate a least amount of important combat power to any efforts. It is closely associated to the idea of force concentration. According to this principle, any part of the whole effort should not be left idle.
8 0
3 years ago
3. Using the F, m, a triangle, calculate the boy's mass. Use the "force
aliya0001 [1]

Answer: 30kg

Explanation:

F = 300N

m = ?

a = 10 m/s/s

m = f/a = 300N/10 m/s/s

m = 30kg

5 0
3 years ago
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