Multiple Choice Question Which class is a lever with the effort between the fulcrum and the resistance? Third Second First

1. You can reduce the forces on you and your car during an unavoidable crash if you are able to redirect your path toward objects such as __ A. I trees, concrete enbankment, wall B. bushes, snow, soft dirt

What does the mass defect measure? A. The energy required to make a reaction happen B. The difference in mass between protons and neutrons C. The energy required to form a nucleus from its parts D. The mass of particles created in a nuclear reaction

What is a controlled variable in this experiment? Same math problems Time it takes to solve the problems Calculators

8) __ are the result of solids or liquids evaporating and mixing with the surrounding atmosphere. a) Gases b) Fibers c) Mists d) Vapors

The magnitude of kinetic friction is typically greater than the magnitude of static friction. True False

Not including thinking distance, lawful brakes must stop a car at 20 miles per hour within how many feet? 25 feet 10 feet 30 feet 20 feet

An electron has a velocity of $4.5\times 10^{4}m/s$ perpendicular to a magnetic field of 3 .5 mT. Determine the magnetic force acting on the electron. $2.50\times 10^{-17}N$ $2.50\times 10^{-17}N$ $3.65\times 10^{-16}N$ $3.65\times 10^{-16}N$

The natural force that pulls vehicles towards the road is __ C gravity centripetal force friction

How is it possible to produce a magnetic field around a non -magnetic wire? How can the orientation of the lines of force in that magnetic field be determined? $\square $

What are the purposes of the gas syringe used in this experiment? to measure the volume of the gas to measure the pressure of the gas to maintain a constant temperature to maintain a constant volume to maintain a constant pressure