On the morning, when the tempero bure of our wai 10°C a sound produced at a certain point was heard at another
point optei a interval of ssec. al nun the firne taken by
sound to frovel the distance between two point was4.8 sec
what is temperature of our at
noon?​

What are similarities and differences of reflection, refraction, diffraction and absorption?

Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules

Abird flies directly overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle \thetaθ with respect to the ground. the radius vector to the bird and its momentum vector lie in the xyxy-plane. what is the bird’s angular momentum about the point where you are standing?