How does the role of blood protect the body

Bob is coming toward you at a speed of 75 km/hr. You throw a baseball in his direction at 75 km/hr. What does he see the ball doing?

A state patrol officer saw a car start from rest at a highway on-ramp. She radioed ahead to another officer 28mi along the highway. When the car reached the location of the second officer 27min later, it was clocked going 60 mi/hr.

What is the term for collecting information about the physical world via the senses or a scientific instrument? A. Experiment B. Phenomenon C. Theory D. Observation

Upward pull of 850 N on a 81.6 kg bale of hay. What is the magnitude of the bales acceleration?

If weight is a measure of an object's force due to gravity, what is the weight of a student who has a mass of 65 kg? (assume that the acceleration due to gravity equals 9.8 m/s2.)

Which events are associated with convergent boundaries? Check all that apply. formation of island chains creation of mid-ocean ridges creation of new mountains formation of earthquakes formation of volcanoes

In the English system of units, power is expressed as horsepower (hp) instead of watts, where 1 hp = 746 W. What would be the power rating of a 100 W light bulb in horsepower?

Find the magnitude f of the force that the wooden block exerts on the nail, assuming that this force is independent of the depth of penetration of the nail into the wood.

When Jacob bats a baseball with a net force of 4.719 N, it accelerates 33 m/s2. What is the mass of the baseball?

If the mass of a material is 45 grams and the volume of the material is 15 cm^3, what would the density of the material be?