What is a physical quantity?

Acceleration a has the dimensions of length per time squared, speed v has the dimensions of length per time, and radius r has the dimension of length. What are the dimensions of the following combinations of quantitiesa=vr

If cable cb is subjected to a tension that is twice that of cable ca, determine the angle u for equilibrium of the 10-kg cylinder. also, what are the tensions in wires ca and cb?

A single-turn loop of wire has a resistance of 6.00 Ω and a cross-sectional area 300 cm2 and is perpendicular to a uniform magnetic field which increases at a constant rate from 0.200 T to 3.60 T in 0.500 seconds.

Pumping apparatus driver/operators must be familiar with the different types of nozzles carried on their apparatus. How would a particular type of nozzle being used affect the hydraulic calculations that must be performed by the driver/operator?

The formula below gives V, the velocity in feet per second of a falling object t seconds after it has been dropped. V (t) = 32t If a piano is dropped off a cliff, how fast will it be falling after 4 seconds? A. 64 feet per second B.

When the vapor pressure of a liquid is equal to the atmospheric pressure the liquid?

Both high-side pressures and low-side pressures are low with the engine running and the selector set to the air-conditioning position. Technician A says that the system is undercharged. Technician B says the cooling fan could be inoperative.

Who came first the youngest, loudest, closer to parent, most beautiful

Two firefighters are fighting a fire with identical water hoses and nozzles, except that one is holding the hose straight so that the water leaves the nozzle in the same direction it comes, while the other holds it backward so that the water makes a

What is the relationship between the mass of the counterweight and the amount of work done on the projectile?