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the pitch of a sound is its highness or lowness. the higher the frequency of a sound wave is, the higher its pitch.

the waves shown below represent sound waves. which of the waves would have the highest-pitched sound?

Aprojectile is launched horizontally 10m above the ground and with an initial velocity of 15 m/s. a) sketch the trajectory using an appropriate coordination system. b) how long for the projectile to reach the ground. c) how far did projectile travel horizontally before striking the ground. d) determine the projectilex & y position at t-1.3s e) determine the magnitude and direction of projectile velocity at t= 1.3s f) determine the magnitude and direction of projectile acceleration at t-1.3s

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest