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

A. 80 m/s

B. 120 m/s

C. 2,000 m/s

D. 5 m/s

Which of the following is true about a family psychologist?

A spherical shell contains three charged objects. The first and second objects have a charge of - 14.0 nC and 31.0 nC, respectively. The total electric flux through the shell is - 533 N ⋅ m 2 / C. What is the charge on the third object?

A 1.50-V battery supplies 0.204 W of power to a small flashlight. If the battery moves 8.33 1020 electrons between its terminals during the time the flashlight is in operation, how long was the flashlight used

What is speed? 1. time per distance (hours per mile or seconds per meter) 2. distance (miles or meters) 3. distance per time (miles per hour or meters per second) 4. time (hours and seconds) I know its 3 but I just want to make sure I am 100% sure

Which formula is used to find fluctuation of the shape of body

determine the pressure exerted on the surface of a submarine cruising 175 ft below the free surface of the sea. assume that the barometric pressure is 14.7 psia and the specific gravity of seawater is 1.03.

9. An astronaut of mass 90 kg walks in space outside her spaceship and receives a 30-N force from a nitrogen spurt gun. What acceleration does she experience?

Which of the following describes the charge of an atom before any electrons are transferred? positive charge negative charge it depends on the number of protons and neutrons neutral charge

A slow jogger runs a mile in 16 minutes. Calculate the speed in

Protecting his nest, a 600-g peregrine falcon rams a marauding 1.5-kg raven in midair. the falcon is moving at 20.0 m/s, and the raven at 9.00 m/s at the moment of impact.