Overview
please answer all the questions with the steps
- What will be the mass of water that is stored in a cubical box with a side of 3 m? The density of water is provided as 1.000 × 103 kg/m3.
- A schoolboy is trying to pump up a bicycle tire so that its pressure is 0.6 × 105 Pa above that of atmospheric pressure. If the boy uses a hand-pump with a circular piston 0.025 m in diameter, how much force he should apply?
- A large metallic cylindrical barrel with a diameter of 4 m lies 25.0 m below the surface of Lake Lewisville. What is the magnitude of the force that acts on the circular top of that container?
- An object weighing 100-N is placed in a bucket of unknown fluid. If the fluid exerts a 90-N upward force on the object, will the object float or sink?
- A hydraulic jack piston has a diameter of 0.06 m. The hydraulic jack is connected to another piston that supports the load. The support load piston has a diameter of 0.50 m. If the jack can lift a mass up to 2500 kg, what is the maximum force that one needs to apply to the piston in order to lift the given mass?