Which of the following have electrical charge? a. protons and neutrons b. neutrons and electrons c. electrons and protons

What is common between transverse waves and longitudinal waves

A force of 10 N, 60 degrees above the horizontal, is applied to a box being dragged 10 m. Find the work done on the box. Ignore Friction. A) 25J B) 50 C) 10 D) 9501

This is a machine consisting of two wheels of different sizes that rotate together. It is a modified lever.

An astronomical unit (AU) is equal to the average distance from Earth to the Sun, about 92.9 * 10⁶ mi. A parsec (pc) is the distance at which a length of 1 AU would subtend an angle of exactly 1 second of arc.

A block of wood of mass 300g and density 0.75 g/cm^3 is floating on the surace of a liquid of density 1.1 g/cm^3. What mass of lead (density = 11.3 g/cm^3) must be added to the block in order for the combination just to be submerged?

A 6.0 kg box slides down an inclined plane that makes an angle of 39° with the horizontal. If the coefficient of kinetic friction is 0.19, what is the magnitude of the acceleration, in m/s2, of the box down the slope?

Identify the following as a suspension or a colloid. sand in water

A cyclist starts at a position of 0 m and takes 3 s to move east to a position of + 8 m. He then cycles west to a position of + 5 m which takes an additional 2 s. What is the cyclist's displacement? a. + 11mb. - 8mc. - 5m d. + 5m

What happens when you shoot a bullet into the sky?

If you want to lift a 5-kg box to a height of 2 meters, how much work must be done? O A. 2J O B. 50 J O C. 98 J O D. 100