You can think of the 35 cubic centimeters as being 35 individual 1-cubic-centimeter blocks of iron, each weighing 7.874 grams. This would mean multiplying the density by the volume to find mass.
Another way of thinking about it is by using units. Because cm^3 is in the denominator of the density and the numerator of the volume, multiplying the two values would give a final answer with units of grams, which is the mass.
+106.
Electrons have a negative 1 charge, so getting rid of 106 negative charges would result in a positive 106 charge.
The total energy stored in the capacitors is determined as 2.41 x 10⁻⁴ J.
<h3>What is the potential difference of the circuit?</h3>
The potential difference of the circuit is calculated as follows;
U = ¹/₂CV²
where;
- C is capacitance of the capacitor
- V is the potential difference
For a parallel circuit the voltage in the circuit is always the same.
The energy stored in 2.5 μf capacitor is known, hence the potential difference of the circuit is calculated as follows;
U = ¹/₂CV²
2U = CV²
V = √2U/C
V = √(2 x 1.8 x 10⁻⁴ / 2.5 x 10⁻⁶)
V = 12 V
The equivalent capacitance of C1 and C2 is calculated as follows;
1/C = 1/C₁ + 1/C₂
1/C = (1)/(0.9 x 10⁻⁶) + (1)/(16 x 10⁻⁶)
1/C = 1,173,611.11
C = 1/1,173,611.11
C = 8.52 x 10⁻⁷ C
The total capacitance of the circuit is calculated as follows;
Ct = 8.52 x 10⁻⁷ C + 2.5 x 10⁻⁶ C
Ct = 3.35 x 10⁻⁶ C
The total energy of the circuit is calculated as follows;
U = ¹/₂CtV²
U = ¹/₂(3.35 x 10⁻⁶ )(12)²
U = 2.41 x 10⁻⁴ J
Learn more about energy stored in a capacitor here: brainly.com/question/14811408
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Answer:
The acceleration of the car is 1.02 m/s².
Explanation:
Given that,
mass = 10 g
Angle = 6°
Suppose we need to find the acceleration of the car.
We need to calculate the tension
Using balance vertical force
Put the value into the formula
We need to calculate the acceleration of the car
Using balance equation
Put the value into the formula
Hence, The acceleration of the car is 1.02 m/s².
Answer:
D. An alloy of iron and carbon
Explanation:
Because iron and carbon are both pure substance.