6) mechanical (sound) waves are unable to travel through a vocuurn, such os through space, but r from satelites how is this possible? adio waves are tronomitted to earth a) radio woves are electromagnetic waves b) sotelites are located within our atmosphere c) radio woves are very high energy mechorical woves radio woves are changed to gamma roys for franernission d) 7) electromagnetic vs. mechanical

The us government wants to allocate billions of dollars in the next 10 years to assure our future energy security. the funds will be spread among a variety of possible energy resources. where do you think the government should put the greatest support: solar energy, wind energy, clean coal, oil exploration, gas exploration, or a combination of sources? are there other efforts that should be explored? support your position with cited information for both questions.

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

The table below shows the acceleration of gravity on different bodies in the solar system. on which body would a 10 kg lamp has the most gravitational potential energy when lifted to a height of 2 m? a. earth b. mars c. neptune d. uranus