Aman a is being blown by a hurricane force wind acting horizontal to the ground. he hangs onto a pole to keep from being blown away. he weighs 200 lbs. the wind acts on the man with a force of 150 lbs. what is the resultant of these two forces?

Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius 푅=0.381meters and mass 푀=3.1푘푔. initially 푚"is on the ground and 푚#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of 푚#just before it strikes the ground. assume the pulley bearing is frictionless.

Estimate the magnitude of the electric field due to the proton in a hydrogen atom at a distance of 5.29×10 to the power of −11 m, the expected position of the electron in the atom.

What are known as the properties of substances that describe a substance et does not change that substances?