Do photons travel in waves

Describe at least TWO hazardous conditions that exist in space AND the technological features a spacecraft must have in order to protect the astronauts from these hazards.

A test piolot flies with an acceleration of 5 g. what is his acceleration in meters per second squared

What best describes the states of nonmetals when they are at room temperature? Most nonmetals are gaseous, but some are liquid or solid. All nonmetals are gaseous unless they bond with a metal.

What types of exercises can be done to increase muscle tone and strength in the body. strength training exercises flexibility exercises aerobic exercises cardiovascular exercises

Which theory best explains the present arrangement of continents oceans and landforms on earth? A the Pangaea theory B The continental puzzle theory C plate tectonic theory.

In the formula for specific heat, which quantity is measured in units of J/g•°C? a - c b - Q c - T d - m

The acceleration of an object is proportional to which of the following? the mass the energy of the object the inverse of the mass the inverse of the force applied

Suppose you squeeze a sponge into a small ball. does the mass of the sponge change? Does it's density change?

A solid round bar with diameter of 2-in has a groove cut to a diameter of 1.8-in, with a groove radius of 0.1-in. the bar is not rotating.

If a pilot pulls her 12.0 kg rollaboard suitcase along the ground with a force of 25. N for 10 M. The handle she pulls on makes an angle of 36.5 degrees with the horizontal. How much work does she do over the ten meter distance?