Answer:
Resistance, R = 60 Ohms
Explanation:
Given the following data;
For the first heater;
Voltage, V = 120 V
Resistance, R = 15 Ohms
For the second heater;
Voltage, V = 240 V
To find the resistance in the second heater;
First of all, we would determine the power rating of the heaters using the formula below;
Power = voltage²/resistance
Power = 120²/15
Power = 14400/15
Power = 960 Watts
Next, we find the resistance in the second heater;
Power = V²/R
960 = 240²/R
Cross-multiplying, we have;
960R = 57600
R = 57600/960
R = 60 Ohms
Answer:
a = 12 [m/s²]
Explanation:
To solve this problem we must use Newton's second law which tells us that the sum of forces on a body is equal to the product of mass by acceleration.
ΣF = m*a
where:
ΣF = sum of forces acting on a body [N] (units of Newtons)
m = mass = 0.5 [kg]
a = acceleration [m/s²]
Let's take the direction of positive forces to the right and negative forces directed to the left
2 + 8 - 4 = 0.5*a
6 = 0.5*a
a = 12 [m/s²]
Answer:
C. If the masses of the objects increase, then the force between them also increases.
Explanation:
Explanation:
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Answer:
Explanation:
Potential energy is the energy stored within an object, due to the object's position, arrangement or state
