Cyclone 2X Earth’s size that has been going for at least 300 years

The formula expresses the relationship between Kelvin temperature and the amount of radiated energy. If a star is three times the temperature of the Sun, how many times more intense is the energy radiated from an equal-sized area of its surface? (Answer with a number only

What will be an ideal response?

Charge of uniform density (20 nC/m2) is distributed over a cylindrical surface (radius = 1.0 cm), and a second coaxial surface (radius = 3.0 cm) carries a uniform charge density of -12 nC/m2 . Determine the magnitude of the electric field at a point 2.0 cm from the symmetry axis of the two surfaces

a. 2.3 kN/C b. 1.1 kN/C c. 1.7 kN/C d. 3.4 kN/C e. 4.5 kN/C

How long does it take the star and planet to complete one orbit around their center of mass?

What will be an ideal response?

A flywheel's diameter is twice that of another of the same shape and mass. Rotational inertia of the larger flywheel is

A) two times greater. B) four times greater. C) the same as the other's. D) half.