Which of these stars has the hottest core? (a) a white main-sequence star (b) an orange main-sequence star (c) a red main-sequence star

What happens during the intake and compression strokes of a four stroke engine?

According to the Heisenberg uncertainty principle, a) The position of a particle cannot be measured precisely b) The momentum of a particle cannot by measured precisely.

Which jet stream affects weather in the United States?

47. A car travels 85 km in the first half hour of a trip. The car continues to travel for 2 more hours and travels 200 km. What was the average speed of the car for the trip? a. 39 km/h b. 95 km/h c. 114 km/h d. 285 km/h

What other daily household functions could be done without running water or electricity?

Which method is used to calculate the slope on a distance time graph

Lexy throws a dart with an initial velocity of 25m/a at an angle of 60 degrees relative to the ground. What is the approximate vertical component of the i ritual velocity?

True or false electronic machines with no moving parts experience friction and get hot because electricity is moving through the wires

I'm having trouble figuring out how to study for my science test, it's based off of everything we've learned but I'm afraid there's some things I misunderstood during the year that will effect me on the test, and suggestions?!!

The air over Earth's surfaces absorbs heat from the materials of Earth. In Section 3 of the experiment, the air over the sand the air over the water because sand water.