Aradio telescope has a circular collecting dish of diameter 5.0 m. it is used to observe two distant

galaxies that are both emitting electromagnetic radiation of wavelength 20 cm. the images of

the galaxies are just resolved by the telescope. what is the angle subtended by the galaxies at

the telescope?

a. 0.05 rad

b. 0.3 rad

c. 5 rad

d. 30 rad

(01.02 mc) nicole pushes her bike up a hill. overhead, the sun exerts a gravitational force on earth. which statement is true about the bike and earth? they both experience contact forces. they both experience non-contact forces. the bike experiences a non-contact force and earth experiences a contact force. the bike experiences a contact force and earth experiences a non-contact force. they both experience non-contact forces.

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?

Which system of units is used by only a small number of countries in the world, including the u.s.