If your normal weight is 850 Newtons, but while riding up the school elevator you find you weigh 910 Newtons, what is the acceleration of the school elevator?

Useful Equations
Force= mass*acceleration
Force of gravity (weight)= mass*gravity
gravity= 10 m/s^2

In positive numbers less than 1, the zeros between the decimal point and non zero are significant

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space. b. we'll know it immediately because it will be brighter than the full moon in the sky. c. we won't know about it until 600 years from now. d. none of the above.