The engine in a small airplane is specified to have a torque of 500 n⋅m . this engine drives a 2.4- m -long, 40 kg single-blade propeller. on startup, how long does it take the propeller to reach 2000 rpm ?

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water

Which of the following is not a physical property of mattera. melting pointb.heat of combustionc. viscosityd. boiling point