Physics, 21.01.2022 02:30 mountainwilson

A student plans an investigation to determine whether an object has a positive charge, a negative charge, or is electrically neutral. Which statements describe procedures and the expected results that the student should follow? A)
Bring a pith ball that has a negative charge near the object. If the ball is repelled, the object is electrically neutral.

B)
Bring a pith ball that has a positive charge near the object. If the ball is repelled, the object has a positive charge.

C)
Bring a pith ball that has a negative charge near the object. If the ball is attracted, the object has a positive charge.

D)
Bring a pith ball that has a positive charge near the object. If the ball is attracted, the object is electrically neutral.

E)
Bring a pith ball that has a negative charge near the object. If the ball is repelled, the object is electrically neutral.

F)
Bring a pith ball that has a positive charge near the object. If the ball is attracted, the object has a negative charge.

Answers: 3

Show answers

Another question on Physics

Physics, 22.06.2019 07:30

Quantum mechanics applies to subatomic, atomic, nanometer-size, and micrometer-size systems. nanometer, micrometer, and kilometer-size systems. atomic, nanometer-size, and micrometer-size systems. subatomic, atomic, and nanometer-size systems.

Answers: 2

Answer

Physics, 22.06.2019 13:40

Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.

Answers: 2

Answer

Physics, 23.06.2019 05:00

How long will it take a car traveling of a constant speed of 45m/s to cover the distance of a 2.5km?

Answers: 1

Answer

Physics, 23.06.2019 05:30

20) what is a magnetic field? 21) in which direction do magnetic field lines always point? 22) sketch a diagram showing how a plotting compass points around a 23) name two magnetic poles that will: a) attract each other b) repel each other. 24) explain why you can use a compass to navigate. 25) what's an electromagnet? 26) list two ways to increase the strength of an electromagnet. 27) the wire in a simple motor feels a force when a current flows through it. why is this? i need answers to check mine

Answers: 1

Answer

You know the right answer?

A student plans an investigation to determine whether an object has a positive charge, a negative ch...

Questions