a company is designing a whistle for lifeguards to use. they need to make the frequency between 1,000 and 5,000 Hz. Using the equation f=1/T, determine the frequency where T=0.00075 seconds

25pts the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

What are atoms of the same element with varying number of neutrons

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader