A water tank has a mass of 2.43 kg when it is empty, and a mass of 54.2 kg when it is filled to a certain level. What is the mass of the water contained in the tank at this level?

What are some proxy sites not blocked by lightspeed systems?

Two enery converrsation that take place when you warm a cup of cocoa in a microwave Oven

An ultrasound pulse used in medical imaging has a frequency of 5 MHz and a pulse width of 0.5 us. Ap - proximately how many oscillations of the sound wave occur in the pulse?

The four main systems of the Earth are A. aromatherapy, biology, chemistry, and physical properties. B. geosphere, atmosphere, hydrosphere, and aerosphere. C. geology, meteorology, oceanography, and chemistry. D.

How do nuclear reactions illustrate conservation of energy and matter?

Why do atoms move at different speeds depending on wether they are liquids or solids

What are the arrangement of resistors in series

A cell provides 6 V to an LDR. The current through this LDR is measured and is found to be 3 A. What is the resistance of the LDR?

A car travels along eastward with a constant velocity. the magnitude of the acceleration of the car is

What is the weight of a 65 kg astronaut on mars?