Wavelength of a 17000Hz sound

Heather puts a straw into glass of water. She notices that when she looks through the glass and the water from the side, the straw appears to be broken. Which term best explains why the straw looks like it broken? A. Absortion B. Refraction C.

a stationary bomb of mass 5kg exploded into one part A of mass 2kg flying off with a velocity of 60 m/s and another part B of mass 3kg flying off with a velocity v in the opposite direction. find v and the total Kinetic energy

You add 50 mL of water at 20°C to 200 mL of water at 70°C. What is the most likely final temperature of the mixture?

While sliding a couch across a floor, Andrea and Jennifer exert forces F → A and F → J on the couch. Andrea's force is due north with a magnitude of 130.0 N and Jennifer's force is 32° east of north with a magnitude of 180.0 N.

A man stands on a spring scale in a moving elevator and notices that the scale reading is 20% larger than when he weighs himself in his bathroom.

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?