A force F = 12 Ni 10 N ; acts on an object. How much work does this force do as the object moves from the origin to the point r = 14 mi + 11 mj?

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

What sort of waves exhibit the doppler effect?

An important dimensionless parameter concerned with very high-speed flow is the mach number, defined as v/c, where v is the speed of the object such as an airplane or projectile, and c is the speed of sound in the fluid surrounding the object. for a projectile traveling at 1170 mph through air at 50 ˚f and standard atmospheric pressure, what is the value of the mach number?