What is the speed of sound in air when the temperature is 20°C?

319 m/s

331 m/s

343 m/s

219 m/s

Find the Cartesian components of force PP acting in the x, y, and z directions given P=50.0 NP=50.0 N, α=143.5∘α=143.5∘, β = 70.0∘β = 70.0∘, and γ=60.9∘γ=60.9∘.

A coil 4.20 cm radius, containing 470 turns, is placed in a uniform magnetic field that varies with time according to B = (1.20*10 - 2 T/s) t + (2.55*10 - 5 T/s4) t4.

Blood plasma volume for adults is about 3.1 liters. It has a density of 1.020 gml. How many pounds of blood plasma are in your body?

What is a solution? A. A solute dissolved in a solvent B. A solvent dissolved in a solute C. A solute layered on a solvent D. A solvent layered on a solute

Which material will displace a volume of water

Describe the factors that form deep currents

A comet is cruising through the solar system at a speed of 50000 kilometers per hour for 4 hours time. What is the total distance traveled by the comet during this time in kilometers, miles, and light years?

A gas in a closed container is heated with 12J of energy, causing the lid of the container to rise 3m with 5N of force. What is the total change in energy?

What are illuminated objects?

During one year a population of blue jays has zero population growth. which must be true about the blue jay population at the end of the year compared to the beginning of the year?