A 2-kg object is moving horizontally with a speed of 4 m/s. How much net force is required to keep the object moving at this speed and in this direction?

What is the most important use of an element's atomic number?

A large truck collides head-on with a small car. The car is severely damaged as a result of the collision. According to Newton's third law, how do the forces acting between the truck and car compare during the collision

Which scientist first stated the relationship between buoyant force and weight of displaced fluid

At a resting pulse rate of 79 beats per minute, the human heart typically pumps about 67 mL of blood per beat. Blood has a denstity of 1060 kg / m3. Circulating all of the blood in the body through the heart takes about 1 min for a person at rest.

Sunlight is a form of electromagnetic energy true of false?

Which type of listening response includes the use of head nods, facial expressions, and short utterances such as "uh-huh" that signal your interest to the speaker?

During eccentric muscle contraction, the muscle

What is a string theory?

When a sound source is moving away from an observer, the observer will hear a lower pitch. This is due to

What is the difference between a meteorite and a asteroid?