Here's one easy way:
-- Hang an object from a scale. Write down its weight in air.
-- Keep the object hanging from the scale, but let it down into water,
or whatever fluid you're interested in.
-- Read the scale again. Write down its weight in the fluid.
-- Dry everything off, clean up the lab, and go to your office with your notebook.
-- In your notebook, turn to the page with that day's observations.
Notice that the object's weight in air was greater than its weight in the fluid.
-- Subtract the weight in fluid from the weight in air.
The difference is the buoyant force on the object when it's in the fluid.
Answer:
False
Explanation:
Pascal is a pressure of one newton per square metre, or, in SI base units, one kilogram per metre per second squared.
Pa = N/m^2
Answer:
The current flowing through the lightbulb was too high. Increasing resistance would decrease the current
Explanation:
Resistance is defined as the opposition to the flow of current across a resistor in an electric circuit. This means that resistors in a circuit opposes the motion of a current. Increase in the value if a resistor will decrease the amount of current that will pass through the resistor.
The higher the value of the resistance, the lower the current and vice versa.
Based on the conclusion above, we could infer that the resistance of the bulb was tested because 'the current flowing through the lightbulb was too high. Increasing resistance would decrease the current.'