We can see our face clearly on mirror why cant we see our face clear on aluminium or irion plate

A block sliding along a horizontal frictionless surface with speed v collides with a spring and compresses it by 2.0 cm. What will be the compression if the same block collides with the spring at a speed of 2v?

Technician A says that a waste spark ignition system fires two spark plugs at the same time. Technician B says that the waste spark ignition system uses ignition coils connected to companion cylinders. Which technician is correct? a.

If bert the bat traveles eastward at 40 mph with a tail wind of 6 mph, what is his actual speed?

The position of a particle along a straight-line path is defined by s = (t3-6t2-15t+7) ft, wheret is in seconds. A. Determine the total distance traveled when t = 8.3 s. B. What are the particle's average velocity at the time given in part A? C.

The Doppler effect occurs when a source of sound moves A. away from you. B. toward you. C. both A and B D. none of the above

Find velocity gradient

In equation y = mx means what

Sea anemones can produce completely new organisms by regeneration. Are these new organisms genetically identical to the parents? Why or why not

What are 3 types of muscle tissue still?

Which of the following is a true statement? * Waves do not transport matter through which they travel Waves can transport matter through solids, liquids and gases, but not through empty space.