An infant's pulse rate is measured to be 130±5 beats/min. What is the percent uncertainty in this measurement?

A sodium has an atomic number of 11 and the atomic mass of 23. Determine the its proton, electrons, and neutrons

Because gasoline is less dense than water, drums containing gasoline will float in water. suppose a 240-l steel drum is completely full of gasoline.

Molecules are groups of atoms connected together. Which substance in the simulation have particles that are molecules?

Speed of sound Material speed of sound in m/s air 331 helium 972 tap water 1493 sea water 1533 aluminum 5100 Based on the table, what would you predict the speed of sound through ice would most likely be?

In a ballistics test, a 26 g bullet traveling horizontally at 1000 m/s goes through a 35-cm-thick 400 kg stationary target and emerges with a speed of 950 m/s. The target is free to slide on a smooth horizontal surface.

If a person lives in china in which two hemispheres does he or she live

When the air in a submarine's huge air tanks is decompressed and it displaces the water in the ballast tanks with air, what does the submarine do? A. It sinks B. It floats C. It provides air to the passengers

The decomposition of a substance by an electric current is called

Along some shorelines, incoming waves cause the water to simply rise and fall rather that form a surf zone. What does this tell you about these shorlines?

Which word best describes the rate at which work is done? work energy power velocity