The galaxy Notrealius is about 7.60 Mpc away from Earth. We view it with a red shift because it is moving away from us. Calculate how quickly the galaxy is moving in km/s.
Give youre answer to 0 dp. The hubble constant is 70.4 km/s/Mpc

Aplane flies directly between two cities, a and b, which are separated by . from a to b, the plane flies into a headwind. on the return trip from b to a, the wind velocity is unchanged. the trip from b to a takes less than the trip from a to b. what is the airspeed of the plane, assuming it is the same in both directions

The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. what is the specific heat ratio? show the math steps .

A40.0 l tank of ammonia has a pressure of 12.7 kpa. calculate the. volume of the ammonia if it’s pressure is changed to 8.4 kpa while its temperature remains constant.