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Why does water in a siphon flows upward against gravity?
Water in a siphon flows upward against gravity due to atmospheric pressure pushing the liquid up the shorter arm of the siphon tube. The weight of the water in the longer arm creates a pressure difference that drives the flow to overcome gravity and flow up the tube.
What is a lever arm balance used for?
A lever arm balance is used to measure the weight of objects by balancing them against known weights on one side of a pivot point. It is commonly used in laboratories and for educational purposes to determine the mass of a sample.
What does the wheelbarrow use to lift a load?
A wheelbarrow uses a lever to lift a load. The handles act as the effort arm, while the wheel and the load act as the resistance arm, allowing the user to easily move heavy items by leveraging the load against the wheel.
What is the input arm and the output arm on a lever?
The input arm, also known as the effort arm, is the distance from the pivot point to where the input force is applied. The output arm, also known as the load arm, is the distance from the pivot point to where the output force is exerted.
A lever has 36cm input arm and 6cm output arm. What is the MA?
The mechanical advantage (MA) of a lever is calculated by dividing the input arm length by the output arm length. In this case, the MA would be 36cm (input arm) divided by 6cm (output arm), resulting in a MA of 6.
