How long does core helium burning last in a star compared with core hydrogen burning?

The average car has a mass of about 1500 kg, and travels at about 30 m/s when it's on the highway; how much kinetic energy does the average car have when driving at highway speed?

3yds = ? in (1 yd = 3ft)

A coil of 43 turns in the shape of a rectangle with width 5 cm and length 10 cm is dropped from a position where magnetic field is 0 T to a position where the field is 0.5 T and is directed perpendicular to the plane of the coil.

How far will a ball travel that goes 35 meters per second for 18 seconds?

Which of the following families contains elements that will not form compounds?

What type of energy comes from the food that we eat?

Which of the following are vector quantities? check all that apply. a. time b. displacement c. force d. mass

Imagine you are on a bus with a helium balloon tied on a string tied to the seat in front of you. the bus stops short to avoid running over a rabbit and you are thrown forward. what happens to the balloon in relation to the bus? 1. the balloon pops.

Give one reason why the density of iron is higher than the density of oxygen

In which region of the periodic table do the elements NOT normally react chemically with other elements? A. metals B. metalloids C. nonmetals D. noble gases