A 7055 kg satellite is orbiting Earth where it is experiencing a gravitational field
strength of 1.82 N/kg.
(mass of the earth is 5.97 x 10 24 kg and radius of the earth is 6.38 x 10 6 m)
a) Determine the distance between the satellite and the centre of the Earth. [2]
b) Determine the satellites altitude. [1]
c) Determine the Force of gravity acting on the satellite at this position. [1]

Match each vocabulary term to its definition. 1. electrons neutral subatomic particles found in the nucleus of the atom 2. neutron lowest energy position of an electron in an atom 3. photon the path of an electron around the nucleus of an atom 4. ground state negatively charged, subatomic particles 5. protons packet of energy of specific size 6. element substance with only one type of atom 7. orbital positively charged, subatomic particles found in the nucleus of the atom

The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?

Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.