Acompass needle normally points toward earth’s magnetic pole, which is near the north pole. which best explains why the needle moves away from the pole when it comes close to a current-carrying wire?
a. current within the wire weakens the magnetic force of the pole.
b. magnetism surrounding the wire weakens the magnetic force of the pole.
c. magnetism surrounding the wire draws the needle toward the wire.

1.)the isotope cobalt-60 has a nuclear mass of 59.933820 u calculate the mass defect of cobalt-60 using the following information. mass of proton: 1.007825 u mass of neutron: 1.008665 u 1 u = 931.5 mev 2.)the isotope cobalt-60 has a nuclear mass of 59.933820 u calculate the binding energy of cobalt-60 using the following information. mass of proton: 1.007825 u mass of neutron: 1.008665 u 1 u = 931.5 mev 3.)the isotope cobalt-60 has a nuclear mass of 59.933820 u calculate the binding energy per nucleon of cobalt-60 using the following information. mass of proton: 1.007825 u mass of neutron: 1.008665 u 1 u = 931.5 mev

What component of earth’s atmosphere exists entirely as a result of photosynthesis?

Which is an example of an exothermic process?