If earth squeezed to the size of moon. Calculate the weight of 100kg mass in the squeezed earth.

Athin, square metal plate measures 14 cm on each side and has emissivity of 0.60. the plate is heated to a temperature of 745°c. what is the rate at which the plate radiates energy ? the stefan-boltzmann constant is 5.67 × 10-8 w/(m2 ? k4). remember that the plate will radiate energy from both its top and bottom surfaces.

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?

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