A 1.5-kg object has a velocity of 
m/s at t = 0. It is accelerated at a constant rate for five seconds after which it has a velocity of 
m/s. What is the magnitude of the resultant force acting on the object during this time interval?
A. 3.8 N
B. 3.2 N
C. 2.8 N
D. 4.3 N
E. 4.6 N
Answer: C
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Element A, mass 9.00 g, reacts exactly with 5.00 g of element B to form 14.00 g of compound AB. If 36.00 g of element A is reacted with 41.00 g of element B to form the same compound, what mass of compound AB will be formed?
a. 9.00 g b. 56.00 g c. 9.00 g d. 30.00 g
A uniform rod of length L, mass M, is suspended by two thin strings. Which of the following statements is true regarding the tensions in the strings?
1.T2 = T1
2.T2 = 2.5 T1
3.T2 = 0.6 T1
4.T2 = 0.8 T1
5.None of the above
6.Not enough information to determine
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Fill in the blank(s) with the appropriate word(s).