Why do elements in groups share more chemical properties than elements in a period

Compare the sum of the kinetic and potential energies of the pendulum at position A to the sum at position C. (Ignore friction.)

A runner drank a lot of water during a race. What is the expected path of the extra filtered water molecules?

A proton enters a uniform magnetic field of strength 0.5 T at 200 m/s. The magnetic field is oriented at an angle of 30° to the proton's velocity.

Which best describes technology's use in science? O Technology slows scientific advancement Technology influences scientific progress. O Technology makes science more complicated. • Technology has increased experimental errors in science.

What two equations can be used to determine the speed of a wave

Two trains leave the same station at the same time. The first train travels north at 60 mph. The second train travels west at 45 mph. Find how fast the distance between the trains is changing two hours after the trains have left.

If the room radius is 4.5 m, and the rotation frequency is 0.8 revolutions per second when the floor drops out, what is the minimum coefficient of static friction so that the people will not slip down?

Energy of motion is known as what energy

While a constant total force of 17 n is exerted on a cart, the cart's acceleration is 5 m/s2. find the mass of the cart?

Which of the following is NOT a possible cause of a genetic disorder in humans? changes in the number of chromosomes mutations in the DNA of genes being born underweight changes in the structure of chromosomes