What is the period of a spring that oscillates with a frequency of 2.09 Hz

If a tree fall in a forest does it make a sound?

a sleepy atudent drops a calculator out of a window yhata 20.7 m off the geound. we can ignore air resistance. what js the velocity of the calculator after falling for 1.8 s

The earth's hydrosphere includes which of the following? oceans, rivers, and lakes the water in the air and underground the water in the atmosphere All of these

Which statement accurately describes this atomic spectrum? The black lines represent the energy emitted by the electrons. The black lines represent the energy absorbed by the electrons. The colored lines represent the energy emitted by the electrons.

A bike with tires of radius 0.330 m speeds up from rest to 5.33 m/s in 6.27's. Through what angle do the wheels turn in that time? (Unit = rad)

A car's position in relation to time is plotted on the graph. What is the car's average velocity for segment C? A) - 4 m/s B) - 0.25 m/s C) 0.25 m/s D) 4 m/s

What percent of my Iodine-131 sample will be left after 7 half-lives?

A 58.0 kg snow skier is on the top of 351 m high hill. After she has gone down a vertical distance of 142 m, what is her mechanical energy? Explain your answer (CER) !

A sphere has a mass of 2.10kg and travels along a horizontal plane at the velocity of 12.2m/s. Find the energy

What is the force required to accelerate a baseball with a mass of 0.145 kilograms and an acceleration of 35.00 meters/second squared?