What mass of a material with density ï is required to make a hollow spherical shell having inner radius r1 and outer radius r2? (use any variable or symbol stated above as

Aparticle initially moving east with a speed of 20.0 m/s, experiences an acceleration of 3.95 m/s, north for a time of 8.00 s. what was the speed of the particle after this acceleration, in units of m/s? give the answer as a positive number.

Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages

The speed of light can be used to measure the