What is the speed of a wave if the wavelength is 100 m and the period is 20 s?

a. 2000m/s

b. 80m/s

c. 120m/s

d. 5 m/s

Explain why a balloon filled with air cannot float in the middle of a room without moving downwards but a helium balloon of the same size can?

Name the conditions required for 2 waves to interfere constructively

The resistance of several materials are shown in the table. Based on this, which material has the best conductivity? Material Resistance (ohms) Aluminum 0.0000000282 Carbon (Graphite) 0.000035 Germanium 0.46 Silicon 640 A. aluminum B.

A grasshopper jumps at a 65.0 degree angle at 5.42m/s. At what time does it reach its maximum height?

A sound wave has a wavelength of 20m. Find its frequency.

The outer planets are small, rocky planets with iron cores. True or False

A car is traveling 15m/s starts to decelerate steadily. It comes to a complete stop in 10 seconds. what is it's acceleration?

Una pelota de béisbol es arrojada verticalmente hacia arriba desde la azotea de un edificio con una velocidad de 20m/s.

Suppose you had one circuit with a 9V battery connected to two 100 ohm light bulbs in series. and a second circuit with a 9V battery connected to two 100 ohm light bulbs in parallel.

Which mechanical waves needs a medium to travel through?