A student walks 3 blocks east, 4 blocks north, and 3 blocks west. What is the displacement of the student?

What element in the periodic table is the basis of all organic molecules

What is the accereation of a vehicle that goes from 35 m/s to a stop in 35s

A satellite orbiting above the earth needs no power source to keep orbiting the earth. The best explanation for this involves the law of inertia.

List some reasons why growth characteristics are more useful on agar plates than on agar slants

A 51.0-kg woman wearing high-heeled shoes is invited into a home in which the kitchen has vinyl floor covering. The heel on each shoe is circular and has a radius of 0.400 cm.

A cricketer can throw a ball to a maximum horizontal distance of 100m. How much high above the ground can he throw same ball

What is the relationship between the slope of the position graph of an object and its velocity?

Differeniate between thermal energy and heat

The term that describes the time when the sun's are directly over the equator is:

A submarine can detect an approaching enemy submarine using sonar. If a stationary submerged submarine emits a 100kHz tone and receives a tone Doppler shifted by 200Hz, calculate the speed of the enemy submarine if the speed of sound in salt water