Is momentum a vector or a scalar? Why

A doorknob makes it easier to twist a door latch in or out. How does a doorknob do this? A. by reducing the distance over which the input force is applied B. by decreasing the amount of input force needed to move the latch C.

Which of the following best describes magnetic fields? A. Magnetic fields need a conductor. B. Magnetic fields are always found in insulators. C. Magnetic fields have north and south magnetic poles. D. Magnetic fields must have only positive charges.

Rooted plants are most likely found in which aquatic zone?

What are two ways to increase the density of an object? Decrease mass with the same volume or decrease the volume with the same mass. Add more mass with the same volume or increase the volume with the same mass.

When revising a budget, it is important to make choices that allow you to continue A. spending B. saving C. paying, money.

Why is the liver important in digestion

A building 190 feet tall casts a 30 foot long shadow. if a person stands at the end of the shadow and looks up to the top of the building, what is the angle of the person's eyes to the top of the building (to the nearest hundredth of a degree) ?

The frequency of which type of electromagnetic wave is just higher than that of visible light? A. infrared waves B. gamma rays C. x-rays D. radio waves E. ultraviolet rays

Two circular coils are concentric and lie in the same plane. The inner coil contains 140 turns of wire, has a radius of 0.015 m, and carries a current of 7.2 A. The outer coil contains 180 turns and has a radius of 0.023 m.

Which best describes how magnesium (mg) and oxygen (o) bond? they form an ionic bond by exchanging two electrons. they form an ionic bond by exchanging three electrons. they form a covalent bond by sharing one electron.