Why the output force exerted by a rake must be less than the input force

The thermosphere is the layer of the atmosphere with the hottest temperature. However, if Pete the astronaut traveled to the thermosphere he would feel very cold. Explain why this is.

A block of aluminum metal has a volume of 3.15 L and a mass of 8.51 kg. What is the density (g/mL) ?

Which list of the phases of h2o is arranged in order of increasing entropy

As you add electrons to an energy level, without adding more protons are there more or less repulsive forces between the electrons?

The mass of 1.63x10^21 silicon atoms is how many grams

One way to experimentally measure the heat capacity of a Styrofoam cup calorimeter would be to melt a known mass of ice in warm water and measure hte temperature change.

What particle is the only one that determine the type of element you have

Wetlands provide habitats for many living things because of their sheltered waters and

What reaction would the chemical equation 2H2O - - > 2H2+O2 represent? A) Replacement Of Water B) Combustion of water c) decomposition of water d) formation of water

He standard reduction potentials of lithium metal and chlorine gas are as follows: reaction reduction potential (v) li + (aq) + e-→li (s) - 3.04 cl2 (g) + 2e-→2cl - (aq) + 1.