A light-year is about?

Two electromagnets are running with equal amounts of electric current. Electromagnet A uses a piece of iron as its metal core, while electromagnet B uses a piece of silver. Which one would have a stronger magnetic field?

A hill is 132 m long and makes an angle of 12.0 degrees with the horizontal. As a 54 kg jogger runs up the hill, how much work does the Niger do against gravity

The gauge pressure in your car tires is 2.20 x 10^5 N/m^2 at a temperature of 35.0°C when you drive it onto a ferry boat to Alaska. What is their gauge pressure (in atm) later, when their temperature has dropped to - 38.

If vector A = 5.5N NE and vector B = 10m N 30° W, what is the vector product of A*B

All mass movements on Earth, landslides, slumps, creep, and avalanches for example, are caused by what action force? A) gravity B) inertia C) friction D) centripetal force

What holds metal ions together?

Describe a situation when you might travel at a high velocity but with lo acceleration

Work occurs when A. an applied force results in movement of an object in the same direction as the applied force B. an object is subjected to balanced forces resulting in movement of the object C.

A 160 kilogram cannon fires a 30 kilogram cannonball with a speed of 45 m/s at an angle of 30 degrees with the horizontal. In what direction and at what speed does the cannon recoil?

A student uses an indicator to measure the pH of a solution. The indicator shows a pH of 7. What must be true of this solution? The solution contains neither hydronium ions nor hydroxide ions.