Which of the following changes will result in a weaker electromagnet.

A. Using a longer wire

B. Using fewer coil of wire

C. Using a higher voltage

D. Using a shorter nail

The material's density is 6.1 g/cm3 how do i lower the density?

1. third law Every applied force is opposed by an equal force. 2. second law A force must be applied to change an object's velocity. 3. first law Acceleration is affected by mass.

How does the volume occupied by a cubic centimeter compare with the volume occupied by a millimeter

If you travel 13 miles and it takes 18 minutes what is the average speed

White light is incident on a diffraction grating. What color is the central maximum of the interference pattern?

A boy on a bicycle is resting at the top of a hill then he rides his bicycle down the hill describe how the boy potential and kineti energy differ at the top middle and bottom of the him

What is the displacement and distance if I walk 8 blocks north, 9 blocks west and 10 blocks south

What investigations provide large amounts of information about a wide range of variables.

Why would Sodium (Na) and Chlorine (CI) want to form a lonic Bond? -to achieve a full inner valence shell -to achieve a equal amount of protons & electrons in their nucleus -to achieve an stable amount of protons & neutrons in their nucleus -to

A digital thermometer reads 15 degrees Celsius, what is the uncertainty?