Oxygen-rich blood reaches cells in the body through small vessels called A. bronchi

B. veins C. alveoli D. capillaries

Eight people are involved in a tug-of-war. The blue team members pull the rope with the forces of 220 N, 340 N, 180 N, and 560 N. Three members of the red team pull it with the forces of 250N, 160 N, and 420 N.

Substances can undergo physical changes or chemical changes. what is the difference between these two kinds of changes

A 75kg man climbs a mountain 1000m high in 3 hours and uses 9.8 kcal/min (1 kcal = 4186J) Calculate his power consumption in watts

An air compressor takes normal air and pushes more and more of it in a rigid steel tank. The number of gas particles in the tank is increased. What happens to the temperature as more and more air is pushed into a tank which does not change size? A.

Briana builds a circuit that has a resistance of 8.0. What voltage should she apply to have a current of 0.8 A?

Consider what happens at the moment when the block leaves the surface of the globe. Which of the following statements are correct? - The net acceleration of the block is directed straight down.

A mechanic pushes a 3.00 ✕ 103-kg car from rest to a speed of v, doing 4,680 j of work in the process. during this time, the car moves 26.0 m. neglecting friction between car and road, find v and the horizontal force exerted on the car.

Explain how latitude determines wind patterns

What is the difference between contact forces and forces that act through a force field?

Suppose two parallel-plate capacitors have the same charge Q. but the area of capacitor 1 is A and the area of capacitor 2 is 2A. 1.