Physics

Which of the following formulas correctly describes how to calculate speed c if provided wavelength A and frequency f? A. c=lambda * f B. c=lambda /f C. c=f/lambda D. c=lambda * f/2

What is the approximate speed of an ultrasound wave propagating through human soft tissue? A. 1.54 mm/sec B. 1.54 m/sec C. 1.54 m/sec D. 1.54 km/sec

Formula 1.25 points A train decelerates at -2.2m/s2 from an initial velocity of 28 m/s. How fast is it moving after 18 seconds? If applicable, round to the tenths. Answer

An archer shoots an arrow. Consider the action force to be the bow string against the arrow. The reaction to this force is the a weight of the arrow. b air resistance against the bow. c friction of the ground against the archer's feet. d grip of the archer's hand on the bow. e arrow's push against the bowstring. e to he the impact of the ball against the

A box that weighs 86.8 N on Earth is taken to the Moon, where the acceleration due to gravity is 1.60m/s2 . The mass of the box on the Moon will be _kg.

3.88 milligrams is equal to how many centigrams? 0.0388 centigrams 0.388 centigrams 38.8 centigrams 388 centigrams

A speeding car passes a motorcycle policeman. The policeman starts from rest and gives chase accelerating at a constant rate 12ft/s2 . If the speeding car continues at constant velocity of 80 ft/s along a straight road, a. How long will it take the motorcycle policeman to catch up to the car? _ b. What distance will the motorcycle policeman cover?_

The shorter the wavelength of light, the greater the energy. Afalse Btrue

ased on information about the life cycle of the Sun and the diagram, which TWO statemen escribe the Sun? A. The Sun is currently using hydrogen in its core as fuel. B. The Sun formed when gravity pulled together pieces of rock from exploding planets. C. The Sun is currently producing helium by fusing hydrogen nuclei. D The Sun's core is currently made of iro...

A charging system output test is being performed. Technician A states that the alternator output involves measuring the system voltage with a volt meter. Technician B states that a carbon pile tester can be used to trick the alternator into charging at full output. Who is correct? Select one: a. Technician A only b. Technician B only C. Both Technicians A an...