A sunken treasure sits on the ocean floor at a depth of 240 fathoms. What is this depth, in feet? (1 fathom = 6 ft)
A) 30.
B) 40.
C) 77.
D) 1.44 × 103
E) 240.
D
You might also like to view...
Faraday's Law: The area of a rectangular loop of wire is 3.6 × 10-3 m2. The loop is placed in a uniform magnetic field that changes steadily from 0.20 T to 1.4 T in 1.6 s. The plane of the loop is perpendicular to the direction of the magnetic field. What is the magnitude of the induced emf in that loop?
A. 2.8 × 10-3 V B. 2.7 × 10-3 V C. 0 V D. 1.8 × 10-3 V E. 3.0 × 10-3 V
The speed of a 2.0-kg object changes from 30 m/s to 40 m/s during a 5.0-s time interval. During this same time interval, the velocity of the object changes its direction by 90°. What is the magnitude of the average total force acting on the object during this time interval?
a. 30 N b. 20 N c. 40 N d. 50 N e. 6.0 N
A dinner plate falls vertically to the floor and breaks up into three pieces, which slide horizontally along the floor. Immediately after the impact,
a 200-g piece moves along the +x-axis with a speed of 2.00 m/s, a 235-g piece moves along the +y-axis with a speed of 1.50 m/s. The third piece has a mass of 100 g. What is the speed of the third piece? A) 2.51 m/s B) 2.57 m/s C) 3.50 m/s D) 5.33 m/s E) 6.83 m/s
One of the results of wave refraction is that
A) wave energy is concentrated at headlands that project into the water. B) wave energy is concentrated in the recessed parts of the coast between headlands. C) sediment is deposited in the vicinity of headlands, making them larger. D) wave energy is dissipated before the waves reach the shoreline.