The A note has a frequency of 880 Hz. What is the wavelength if the speed of sound is 343 m/s?

A perpetual motion machine can never be bill because it is not possible to eliminate a. momentum b. inertia c. elasticity d. friction

X-rays cannot pass through Earth's atmosphere. Which of these is the best location to place a telescope used to observe x-rays from stars? mountain top of building space high-flying aircraft

One nanometer is equal to how many centimeters?

A particle that is composed of two up quarks and one down quark is a (1) meson (3) proton (2) neutron (4) positron

Elements that have the lowest densities of all the metals are called

Lucy tells her classmates that while she was at the lake, she realized that when she dove underwater, she couldn't hear anything. Lucy thinks this is because sound can not pass from the air into the water.

Imagine a bouncing ball that does not lose any energy as it bounces. could it ever bounce to a greater height than it was dropped from? explain your answer

Defanation of evaporqation

The most abundant gas in the Earth's atmosphere is: A. carbon dioxide B. hydrogen C. nitrogen D. oxygen

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.