A brick falls from rest from a balcony at the top of a high hotel tower. Ignore air resistance and take g = 10 m/s?
a. What is velocity after
i. 1 s?
ii. 2 s?
iii. 3 s?
iv. 55?

b.
i. 1s?
ii. 2s?
iii. 3s?
iv. 5s?

If steel is more dense that lake water, why can a boat float

The magnetic field inside a superconducting solenoid is 4.50 t. the solenoid has an inner diameter of 6.20 cm and a length of 26.0 cm. determine (a) the magnetic energy density in the field and (b) the energy stored in the magnetic field within the solenoid.

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.