Thermodynamics 1st law

A car travels three-quarters of the way around a circle of radius 20.0 m in a time of 3.0 s at a constant speed. the initial velocity is west and the final velocity is south. (a) find its average velocity for this trip.

Which aspect of the personality exists from birth? the ego the id the alter ego the superego

Which excited electron has the lowest energy?

If Jupiter has a composition similar to the sun, why is it not a star? A) it is in orbit around the sun B) it is too massive to be a star C) it is too far from earth D) the pressure in Jupiter is too low

How can you make a car more energy efficient? Select one: a. idle excessively b. burn more fuel c. paint the car d. tune the engine

When a solid A of mass 12g is completed immensedin a measuring cylinder filled with water it diplaces the same volume of water as does solidB if mass 8 what can be deduced about the densities of solid AandB

Write the energy equivalent to 300 units of electrical energy in joules

Briefly describe why these searches suggest that star-like (our planet-like) objects and black holes cannot account for all the dark matter in the halo of our galaxy.

What two units of measurement are necessary for describing speed?

If 3,600 J of work is done in 3.0 s, what is the power? 0.00083 W 1,200 W 3,600 W 11,000 w