Activity A #2 - What is the speed of the toy car when set at Hill 1 - 60 cm, Hill 2 - 50 cm, Hill 3 - 20 cm (just type the number and unit, ex cm/s and round to nearest tenth) *

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.

This is the substance(s) formed in a chemical reaction.

A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?