A train travels 69 kilometers in 3 hours, and then 51 kilometers in 2 hours. What is its average speed? Your Answer: Question 14 options: Answer units

What will a medium-mass star become at the very end of its life cycle? a red giant a black hole a white dwarf a neutron star

Wire of resistance 6.2 Ω is connected to a battery whose emf ε is 4.0 V and whose internal resistance is 0.38 Ω. In 2.

To use Faraday's law for this problem, you will need to construct a suitable loop, around which you will integrate the electric field. In which plane should the loop lie to get a nonzero electric field line integral and a nonzero magnetic flux? a.

The sharing of valence electrons between atoms indicates an ionic bond. True or false

How is the direction of current defined by convention

would the phases of the moon be affected if the moon didn't make one rotation for each revolution of earth?

What kinetic energy has 1 tone car traveling at 15 m/s

Ceres is a dwarf planet located in the main asteroid belt.

Which solid is the best thermal insulator A. brass b. ice C. styrofoam D. copper

When a high-mass star explodes, which of the following is left over in the center? A. Black hole B. Neutron star C. White Dwarf D. either a or b