What is a scalar?

A: a magnitude and a direction

B:the direction of a vector

C:a quantity that does not indict a direction

D:a measurement of displacement

A spherical shell of radius 3.59 cm and a cylinder of radius 7.22 cm are rolling without slipping along the same floor. The two objects have the same mass.

If a wave has a wavelength of 9 meters and a period of 0.006, what is the velocity of the wave? A. 1,200 m/s B. 1,285 m/s C. 1,800 m/s D. 1,500 m/s

How does a vacuum flask keep drinks hot? Explain in terms of conduction, convection and radiation.

Some molecular compounds, such as HCl, ionize completely in solution. Some molecular compounds such as HC2H3O2 do not ionize completely when they dissolve in water. Which explains their solution properties?

A wave is propagating from left to right in a medium. The particles in the medium are also vibrating from left to right. What kind of wave does this describe? longitudinal wave transverse wave mechanical wave electromagnetic wave

Which element in period 3 on the periodic table is a metallioid

Your 300 mL cup of coffee is too hot to drink when served at 87.0 degrees Celsius. What is the mass of the ice cube, taken from a - 15.0 degrees Celsius freezer, that will cool your coffee to a pleasant 65 degrees Celsius?

How can the same material bend in one situation but break in another

According to Newton's first law of motion, what would happen to a car traveling at a constant velocity of 55 MPH to the west in the absence of an unbalanced force?

The Appalachian mountain range in the Eastern United States was once much taller than the Rocky mountain range in the Western United States.