What is the length of a simple pendulum with a period of 2.0 s?

Sound waves are a type of mechanical wave and can therefore travel through space because they do not require a medium. True False

What is required for driverless cars to become available to the public? Why? Driverless cars would require wireless computer technology on every mile of road they travel. This will allow traffic and construction signals to communicate with the cars.

Divers in Acapulco dive from a cliff that is 63 m high. If the rocks below the cliff extend outward for 21 m, what is the minimum horizontal velocity a diver must have to clear the rocks?

A space vehicle is traveling at 2980 km/h relative to Earth when the exhausted rocket motor is disengaged and sent backward. The relative speed between the motor and the command module is then 94 km/h.

Which of the following lists the stars in order from greatest density to least density? a. white dwarf, neutron star, main sequence star, giant b. giant, main sequence star, white dwarf, neutron star c.

Can a body be in equilibrium if it is in motion? Explain

What is the average speed in kilometers per second of the earth around the sun?

Why does a dog circle its bed before lying down

5. Which answer correctly summarizes the essential elements of a scientific theory?. A. descriptions of the natural world; based on many observations and data; do not explain why. B.

Light can travel through a medium, but it does not require a medium. a. True b. False