An atom of gadolinium has an atomic number of 64 and a mass number of 154. how many electrons, protons, and neutrons does it contain?

At the beginning of a bobsled race, teammates push their bobsled along the track before jumping into it. a. Before the teammates jump in, they push the bobsled (m = 150 kg) from rest to a speed of 4.2 m/s.

Zinc reacts with aqueous sulfuric acid to form hydrogen gas. in an experiment, 125 ml of wet h2 is collected over water at 27 degc and a barometric pressure of 753 torr. the vapor pressure of water at 27 degc is 26.74 torr.

Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made. T or F

Which change would increase the mechanical advantage of dentures, which are artificial teeth?

In an element's square on the periodic table, the number with the greatest numerical value represents the number of neutrons. number of electrons. atomic number. atomic mass.

In 1940, the Tacoma Narrows Bridge across the Puget Sound collapsed. The bridge was a suspension bridge. The wind blowing through the narrows matched the natural frequency of the bridge.

What has more momentum: a sports car moving at 100 mph or a train that is not moving?

What is your mass in kilograms?

The dimensions of a block that weighs 30 N are 0.23 mx 0.12 mx 0.075 m. What pressure does the brick exert on the ground if it is resting on its largest face?

What is the current in a circuit with a 9.0 V battery and a resistance of 36.0 Ω?