A cable is 100-m long and has a cross-sectional area of 1 mm2. A 1000-N force is applied to stretch the cable. The elastic modulus for the cable is 1.0 × 1011 N/m2. How far does it stretch?
A) 0.001 m
B) 0.01 m
C) 0.10 m
D) 1.0 m
E) 10 m
D
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An object is placed exactly halfway between the Earth and the Moon. The object will fall toward the
A) Earth. B) Moon. C) neither
A barrel rolling down an inclined ramp has only kinetic energy
a. True b. False Indicate whether the statement is true or false
Take a cup of water, add sugar, and stir. If the resulting solution no longer contains sugar crystals, the solution is said to be
a. an unsaturated solution. b. a saturated solution. c. a heterogeneous solution. d. none of these.
A truck, initially at rest, rolls down a frictionless hill and attains a speed of 20 m/s at the bottom. To achieve a speed of 40 m/s at the bottom, how many times higher must the hill be?
A. half the height B. the same height C. 12 times the height D. twice the height E. four times the height