An object with a lot of mass has ____________. A. no inertia B. a little inertia C. a lot of inertia D. inertia is not related to mass
Using the principle of conservation of mechanical energy, calculate the maximum height achieved by a 7 N ball tossed vertically upward with an initial velocity of 10 m/s.
A car traveling 90km/hr is 100 m behind a truck traveling 50km/hr. How long will it take the car to reach the truck?
Which of the following correctly describes the Big Bang theory? The entire universe was formed in a massive explosion that threw all the material that makes up the universe out in all directions at a great speed. When a large star grows old and runs out of fuel, it is thought that the result is a very large explosion. This explosion is called the "Big Bang." The large explosions in the universe that are constantly happening are what allows it to keep expanding. Without these "Big Bangs," the universe would all crunch together. The majority of the universe was formed in a giant explosion that threw material out in all directions. Only a few galaxies already existed at the time of this explosion.
According to this graph, which statement describes how the amount of iron changes over time in the reaction Fe2O3 + 3H2 → 2Fe + 3H2O? A. The amount of the product Fe increases rapidly at first and then continues to increase slowly. B. As time passes there is steady decrease in the amount of Fe. C. As time passes Fe2O3 and Fe will reach a dynamic equilibrium. D. The amount of the reactant Fe2O3 increases rapidly at first and then continues to increase slowly.
Analyze what happens to the air pressure as you increase in the altitude. How might this affect athletes who compete at higher altitudes?
You get up in the morning, get dressed, eat breakfast, walk to the bus stop, and ride to school. List three different energy transformations that have taken place.
When a potassium atom forms an ion, it loses one electron. What is the electrical charge of the potassium ion? A. -1 B. -2 C. +2 D. +1
If you walked at an average speed of 102 m/s, how long would it take to cross a road that is 16-m wide?
