Which of the following is a possible explanation for a set of observations or answer to a scientific question?

A. prediction

B. hypothesis

C. variable

D. law

?

A nonconducting sphere is made of two layers. The innermost section has a radius of 6.0 cm and a uniform charge density of - 5.0C/m3. The outer layer has a uniform charge density of + 8.0C/m3 and extends from an inner radius of 6.

A lightbulb consumed 1100J in 30 minutes. Find Power, resistance, and calculate energy in kWh

The speedof a boat in still water is v. The boat is to make a round-trip ina river whose current travels at speed u.

How much power does it take to lift a 4500kg elevator 25m up a shaft in 29s?

For hydrogen gas, H2, tables give values for the parame ters of eqn 7a of a-2728JKmoll, b-3.26x 10 3JK-2 mor and c - 0.50 J K2 mol - Calculate the value of the consta pressure heat capacity of hydrogen at 25 °C

A teacher has asked four students to state a scientific theory. Which student is correct?

36 of 50 Constants A 89.0-kg refrigerator sits on the floor. The coefficient of static friction between the refrigerator and the floor is 0.60. What is the minimum force that one needs to exert on the refrigerator to start the refrigerator sliding?

Does high pressure rise and low pressure sink

A unit vector is used in the symbolic representation of the electric field. What physical units does the unit vector have? meters. The unit vector has no units. coulombs. The units depend on how it is used.

What's the definition of streak