What was noticed about the shape of coastlines by sailors as early as the sixteenth century?

A light bulb converts electrical energy into electromagnetic energy is true or false?

When the Net Force quadrupled from 50N to 200N, how many times bigger was the acceleration?

I am a liquid if you mix me with water i float on top but if you mix me with gasoline i sink what am i.? options air alcohol aluminum cork cornsyrup diamond gasoline glycerin gold ice iron lead marble mercury rubber silver steel water

Science fair project

The indices of refraction for red, green, and violet light in glass are nred = 1.520, ngreen = 1.526, and nviolet = 1.538.

Block 1 and Block 2 have the same mass, m, and are released from the top of two inclined planes of the same height making 30 degree and 60 degree angles with the horizontal direction, respectively.

Water waves change direction when they encounter water of different depths and begin to move at different wave speeds. This is called A. reflection B. constructive interference C. the Doppler effect D. refraction

Along with an alpha particle what other product is produced in the alpha decay of americium-241

What does Newton's second law of motion say

Two sinusoidal waves are moving through a medium in the positive x-direction, both having amplitudes of 7.00 cm, a wave number of k=3.00m-1, an angular frequency of ω=2.50s-1, and a period of 6.00 s, but one has a phase shift of an angle ϕ=π12rad.