A celestial object takes six to seven years to revolve once around the Sun. It’s made mostly of ice, some of which vaporizes when it passes near the Sun. What is this object?

Avoltage source vs = 10 v is in series with a resistor of 10 kohm. if the source transformation theorem is applied, what will the value of the current source be in ma ?

Acatapult is tested by roman legionnaires. they tabulate the results in a papyrus and 2000 years later the archaeological team reads (distances translated into modern units): range = 0.4 km; angle of launch = π/5 rad; landing height = launch height. what is the initial velocity of launch of the boulders if air resistance is negligible?

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?