An eagle flying at 28 m/s emits a cry whose frequency is 370 hz. I’d like for this moving in the same direction as the eagle at 10.78 m/s. The speed of the eagle is 11m/s. What frequency does the blackbird hear (in hz) after the eagle passes the background?

Abaseball picther can throw a ball at about 90 miles per hour, v = 40 m/s, on solid rock ground. we now put him into space. when he throws the ball, which weighs mb = 0.15 kg moves away from himat the same speed. how long does it take the ball thrown in space to travel the 30 meters to the batter? he weighs mp = 100kg

Anne applies a force on a toy car and makes it move forward. what can be said about the forces acting on the toy car at the moment anne applies the force?

An object has a weight of 500 on earth what is the mass of this object