A very long wire generates a magnetic field of 0.0020x 10^-4 T at a distance of 10 mm. What is the magnitude of the current? A) 2.0 mA B) 3100 mA C) 4000 mA D) 1.0 mA

Why does gum stick to a wall when you through it but when its wet it doesnt stick?

A 68 kgkg driver gets into an empty taptap to start the day's work. The springs compress 2.1*10-2 mm. What is the effective spring constant of the spring system in the taptap?

31) The basic concept of how a simple motor works is explained by which statement? A) When a fan blows on a wire, it causes it to spin creating a force. B) When a fan blows on a wire, it causes it to spin, creating an electrical current.

What element below makes up 71% of the earth's crust?

A toy rocket is shot straight up into the air with Anitial velocity of 45 m/s

Give one reason why the density of iron is higher than the density of oxygen

In which region of the periodic table do the elements NOT normally react chemically with other elements? A. metals B. metalloids C. nonmetals D. noble gases

A hot air ballon was a mass of 400 kilograms moves across the sky with 3200 joules of kinetic energy. the velocity of the balloon is

What Is a mineral made of oxidized hydrogen

If you were to go to space, and took your helmet of the suit off while your out side of the rocket, what would happen?