Question

26. Can an object be moving at a constant speed, but still have acceleration?

A. Yes, because the object is gaining speed at a constant rate.

B. Yes, because the object is changing direction.

C. No, if it's moving at a constant speed it is not accelerating.

D. No, because the object will eventually slow down.

27.In the quantum theory of hydrogen, as an electron drops to lower EPE orbit, it emits a photon with missing energy equal to

A. ΔQ, i.e., themal equilibrium

B. (Δm)c2

C.

28. The metric system’s unit of force, the Newton, is the same as 1.00 kg m/s².

True

False

Answer 1

object have acceleration when it f speed is changing direction is changing direction Changing that's why its have accelelation 08 or its direction is changing. In this austion sheed is constant have acceleration means but stile uniform circular motion barticle speed is constant but its option (A) 28 Force F =ma m=mast a= acceleration Unit of mast =kg acceleration So unit of force = m/s2 kgm/s² IN 1 kgm/s2 Torne