What is the length of a simple pendulum with a period of 11.5 s?

A car has a speed of 2 m/s and a mass of 1500 kg. What is the cars kinetic energy?

Which of the following equations is balanced correctly? A. 3 H2O → H2 + 3 O2 B. Cl2 + 2 KBr → KCl + Br2 C. 2 C2H2 + 5 O2 → 4 CO2 + 2 H2O D. 2 C3H3 + O2 → 2 CO2 + H2O

A pendulum is swinging back and forth with a period of 2.0 seconds here on Earth. This pendulum is then brought to the Moon, where the acceleration due to gravity is much smaller.

Students in a chemistry class added 5g of zinc (Zn) to 50g of hydrochloric acid (HCl). A chemical reaction occurred that produced zinc chloride (ZnCl2) and 6g of hydrogen gas (H2).

Bonnie and Clyde are sliding a 323 kg bank safe across the floor to their getaway car. The safe slides with a constant speed if Clyde pushes from behind with 383 N of force while Bonnie pulls forward on a rope with 343 N of force.

The entropy of a hot baked potato decreases as it cools. is this a violation of the increase of entropy principle? explain.

When aluminum-27 is bombarded with a neutron, a gamma ray is emitted. what radioactive isotope is produced?

A sonar device on a ship sends ultrasound waves under the water to locate a sunken ship. It takes the ultrasound wave 0.6 seconds to travel from the device to the sunken ship and back again. How far below the surface is the sunken ship?

How can you determine the type of radiation an atom emits as its nucleus decays

The atoms of which elements are most likely to share many electrons among many atoms? Check all that apply.