Question

In a Physics experiment, the Energy stored in a capacitor is transformed in heat and used to bring a Copper made wire from the room temperature ?? = ?? ℃, up to its melting point, at ???????? = ???? ℃. The Copper wire has a mass of 3 grams, while the specific heat capacity of Copper is ??????? = ??? ?/??℃. Knowing that the maximum Voltage the Capacitor used in the experiment can sustain is 15 V, what is the Capacitance of the capacitor?

Answer #1

A 165 μF capacitor is used in a circuit.
How much energy, in joules, is stored in it when 117 V is
applied?
&
A nervous physicist worries that the two metal shelves of his
wood frame bookcase might obtain a high voltage difference if
charged by static electricity, perhaps produced by friction.
What is the capacitance of the empty shelves if they have area
1.4 × 103 cm2 and are 0.22 m apart in F?
What is the potential...

In a physics lab students are conducting an experiment to learn
about the heat capacity of different materials. The first group is
instructed to add 1.5-g copper pellets at a temperature of 92°C to
285 g of water at 16°C. A second group is given the same number of
1.5-g pellets as the first group, but these are now aluminum
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surroundings for either group.
(a) If the final...

The hospital you work for uses a defibrillator that has a single
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to be used, the defibrillator is charged to a voltage of 4000
V.
a) How much charge is stored on the defibrillator ‘s capacitor when
it has been fully charged?
b) If you were to connect an additional 3 x 10-6 F capacitor in
parallel with the original 10-6 F capacitor in the defibrillator,
what would be...

You want to do an experiment to measure the conversion of
gravitational
potential energy to kinetic energy to heat by dropping 2.0 kg
of copper
off the roof of LEHS, a height of 14 m. How much will the
temperature of
the copper increase?
(Hint: Remember that potential energy is measured in J but
specific heat
capacity problems usually use kJ.)

(a) A typical student listening attentively to a
physics lecture class has a heat output of
100 W. How much heat energy does a class of 80 physics students
release into a
lecture hall over the course of a 50-min lecture?
(b) Assume that all the heat energy in part (a) is transferred to
the 3200 m3 of air in the
room. The air has specific heat capacity 1020 J/kg-K and density
1.20 kg/m3. If
none of the heat escapes...

In a physics lab students are conducting an experiment to learn
about the heat capacity of different materials. The first group is
instructed to add 1.5-g lead pellets at a temperature of 92°C to
135 g of water at 16°C. A second group is given the same number of
1.5-g pellets as the first group, but these are now aluminum
pellets. Assume that no heat is lost to or gained from the
surroundings for either group.
(a) If the final...

In a physics lab students are conducting an experiment to learn
about the heat capacity of different materials. The first group is
instructed to add 1.5-g lead pellets at a temperature of 92°C to
275 g of water at 16°C. A second group is given the same number of
1.5-g pellets as the first group, but these are now aluminum
pellets. Assume that no heat is lost to or gained from the
surroundings for either group.
(a) If the final...

for physics heat capacity lab writeup from a calorimeter
experiment, we are asked to show the algebra behind calcupaltions
for Cp in cal/gdegreeC in the case wehere the cup and shot are the
same metal??? The cup is composed of Aluminum and then the alumum
metal used for metal shot samples was 50.5 grams. the water was
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The potential energy stored in a spring is
1/2kx2, where k is the force constant
of the spring and x is the distance the spring is
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adiabatic container, and released. The mass of the spring is 20 g,
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A home melting pot is used for a metal casting hobby. At the end
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and cools further to room temperature, 22°C? Data for lead at 1
atm: Melting point = 328°C Specific heat liquid = 0.138 J/g ⋅ °C
Specific heat solid = 0.130 J/g ⋅ °C Heat of fusion = 23.0 J/g
__J

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