What is the relationship between the strength of an electromagnet and the number of turns in the coil

Which units can be used to measure length or distance? check all that apply. gram meter kilometer liter inch

Akg a of 55 m at an of 11 ? . if is at 98 km/h,be ?

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?