Which describe reflection check all that apply

Soccer 10 m/s stop 3 seconds

The playing time of 16 popular songs is found to have a standard deviation of 54.5 seconds. Use a 0.05 significance level to test the claim that the songs are from a population with a standard deviation less than one minute (60 seconds).

Which sphere forms Earth's outermost layer? Atmosphere Biosphere Cryosphere Hydrosphere

Which stament best describes resistance

Which example describes and nonrenewable resource? A. everyone in our neighborhood uses solar panels to generate electricity to run their pool pumps. B.

The atomic mass of an element is A. The average mass of all the isotopes of the element B. A measure of the density of that element C. The mass of the most common isotope of that element D.

Why does sound travel faster in water than in air? A. because water is a denser medium than air B. because air is a denser medium than water C. because water has a larger wavelength than air D. because air has a larger wavelength than water

Explain the working principle of a pressure filter

A duck floating on a lake oscillates up and down5.0 times during a 10.-second interval as aperiodic wave passes by. what is the frequencyof the duck's oscillations? (1) 0.10 hz (3) 2.0 hz (2) 0.50 hz (4) 50. hz

A 2 feet piece of wire is cut into two pieces and once a piece is bent into a square and the other is bent into an equilateral triangle. Where should the wire cut so that the total enclosed area by both shapes is at the maximum?