An object moving on the x axis with a constant acceleration increases its x coordinate by 80 m in a time of 5.0 s and has a velocity of +20 m/s at the end of this time. Determine the acceleration of the object during this motion
a. ?1.6 m/s2
b. +6.4 m/s2
c. +1.6 m/s2
d. ?2.0 m/s2
e. ?6.4 m/s2
c
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The rms velocity of a He molecule in helium gas with a temperature of 20 is 1,352 m/s. What is the rms velocity of the molecule if the temperature of the gas is tripled?
A. 2,340 m/s B. 3,640 m/s C. 3,980 m/s D. 4,120 m/s E. 4,500 m/s
Our calendar has leap years because
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Particles made up of two quarks must consist of a quark-antiquark pair
Indicate whether the statement is true or false
What are some of the things that make Earth unique among the terrestrial planets?
What will be an ideal response?