Which of these is an example of a mechanical wave?

A. Light from a flashlight B. Police siren. C. Sunlight D. Microwaves used to heat food.

At an instant when a soccer ball is in contact with the foot of the player kicking it, the horizontal or x component of the ball's acceleration is 900 m/s^2 and the vertical or y component of its acceleration is 870 m/s^2. The ball's mass is 0.31 kg.

Calculate the pressure, in atmospheres, exerted by each of the following: a) 2.50 L HF containing 1.35 mol at 320.0 G b) 4.75 L NO2 containing 0.86 mol at 300.0 K c) 5.50 * 104 mL CO2 containing 2.15 mol at 57°C

How does heart failure affect the body

A car is moving with a constant speed of 20. meters per second. What total distance does the car travel in 2.0 minutes? (1) 10. m (3) 1200 m (2) 40. m (4) 2400 m

Which of the following has the largest momentum? A. a 10kg dog running down the street at 30mph B. a tightrope walker slowly crossing niagara falls C. a 0.02kg bullet moving down the barrel at 800mph D. a semi truck parked in a parking lot

A lever allows a 35 N load to be lifted with a force of 7 N. What is the mechanical advantage of the lever?

A container of gas is at a pressure of 3.7 * 105 Pa How much work is done by the gas if its volume expands by 1.6 m3?

A person carries a mass of 10 kg and walks along the + x-axis for a distance of 100m with a constant velocity of 2 m/s. What is the work done by this person? A) 20 J B) None of the other choices is correct. C) 0 J D) 200 J

Uranus has more than 14 times as much mass as earth, yet the gravitational force is less. how can that be?

What is velocity-time graph?