A student attempts to measure the mass of a brick by measuring the force required to accelerate it at 1 on a
level surface. The force required is 2 N, and the student
concludes that the brick has a mass of 2 kg. A balance
shows that the mass of the brick is really 1.5 kg. The
experimental error is most likely due to
A. Gravity
B. Inertia
C. Friction
D. Work

Two friends are having a conversation. anna says a satellite in orbit is in freefall because the satellite keeps falling toward earth. tom says a satellite in orbit is not in freefall because the acceleration due to gravity is not 9.80 m/2 . who do you agree with and why?

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)

Select the three ways that the parallel-plate capacitor differs from a car battery.