A heavy sled and a light sled, both moving horizontally with the same kinetic energy, suddenly slide onto a rough patch of snow and eventually come to a stop
The coefficient of kinetic friction between the sleds and the rough snow is the same for both of them. Which of the following statements about these sleds are correct? (There could be more than one correct choice.) A) Both sleds will slide the same distance on the rough snow before stopping.
B) The heavy sled will slide farther on the rough snow than the light sled.
C) The light sled will slide farther on the rough snow than the heavy sled.
D) On the rough snow, the change in kinetic energy will be the same for both sleds.
E) The friction force exerted on the sleds by the snow will do the same amount of work on both sleds.
C, D, E
You might also like to view...
As a 1.0-kg object moves from point A to point B, it is acted upon by a single conservative force which does -40 J of work during this motion. At point A the speed of the particle is 6.0 m/s and the potential energy associated with the force is +50 J. What is the potential energy at point B?
a. +72 J b. +10 J c. +90 J d. +28 J e. +68 J
There is a temperature at which the reading on the Kelvin scale is numerically:
A. equal to that on the Celsius scale B. lower than that on the Celsius scale C. equal to that on the Fahrenheit scale D. less than zero E. none of the above
Photoelectric Effect: A photoelectric surface has a work function of 2.10 eV. Calculate the maximum kinetic energy, in eV, of electrons ejected from this surface by electromagnetic radiation of wavelength 356 nm. (1 eV = 1.60 × 10-19 J, c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s)
Fill in the blank(s) with the appropriate word(s).
Which of the following ions would never form in chemical reactions?
a. F2- b. Al3+ c. O2- d. N3-