Jane walks 31 steps eastward and 16 steps southward. What is her displacement if each step averages 0.82 meters?
What will be an ideal response?
29. m at 27. degrees S of E
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A well-known structure located in Britain and investigated by archeoastronomist is called _______________
Fill in the blank(s) with correct word
A conducting bar moves as shown near a long wire carrying a constant 50-A current. If a = 4.0 mm, L = 50 cm, and v = 12 m/s, what is the potential difference, VA?VB?
A. +15 mV B. ?15 mV C. +20 mV D. ?20 mV E. +10 mV
A 0.40-kg mass attached to the end of a string swings in a vertical circle having a radius of 1.8 m. At an instant when the string makes an angle of 40 degrees below the horizontal, the speed of the mass is 5.0 m/s. What is the magnitude of the tension in the string at this instant?
a. 9.5 N b. 3.0 N c. 8.1 N d. 5.6 N e. 4.7 N
A particle (q = +5.0 mC) is released from rest when it is 2.0 m from a charged particle which is held at rest. After the positively charged particle has moved 1.0 m toward the fixed particle, it has a kinetic energy of 50 mJ. What is the charge on the fixed particle?
a. -2.2 mC b. +6.7 mC c. -2.7 mC d. +8.0 mC e. -1.1 mC