Which unit is used to measure mass in the metric system

Circuit A Resistance: 20 Ω Voltage: 24 V Circuit B Resistance: 250 Ω Voltage: 220 V Circuit C Resistance: 3 Ω Voltage: 6 V Which order shows decreasing current? A, B, C C, A, B C, B, A

An insulator does not allow electrons to flow freely through it. true or false

Imagine that a tank is filled with water. The height of the liquid column is 7 meters and the area is 1.5 square meters (m2 ). What's the force of gravity acting on the column of water? A. 73,500 N B. 102,900 N C. 68,600 N D. 110,700 N

An object in equilibrium has a net force of

Why is thermal expansion an important consideration for engineering?

Fourteen billion years represents the approximate age of?

An engineer uses aluminum to build an airplane rather than composite materials that are lighter and stronger. He does this because he is concerned about the composite materials and how suddenly they can fail. This is an example of:

Teresa wanted to test the effects of liquid density on the speed of sound waves. what is the dependent variable in her experiment?

A proton (mass = 1.67*10-27 kg, charge = 1.6*10-19 C) travelling with speed 1*106 m/s enters a region of space containing a uniform magnetic field of 1.2 T. What is the time t required for the proton to re-emerge into the field-free region? t =

A scientific_ is a rule used to discribe a pattern seen in nature not an examplanation of why that patten might occur