A weight lifter can bench press How many milligrams (mg) is this?
A) 1.71 × 108 mg
B) 1.71 × 109 mg
C) 1.71 × 107 mg
D) 1.71 × 106 mg
Answer: A
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Constellation names are from _____ translated into _______, the language of science in Europe to the 19th century
a. Greek; Latin. b. Latin; Greek. c. Latin; Arabic. d. Greek; English. e. Greek; Italian.
Groombridge 34 is an M2 main sequence star. Based on this information, which statement is true? a. Groombridge 34 has a surface temperature that is more than the Sun
b. Groombridge 34 has mass that is greater than the Sun. c. Groombridge 34 is less luminous than the Sun. d. Groombridge 34 is more luminous than the Sun. e. Groombridge 34 is located near the upper left hand corner on the HR diagram.
In Hubble's "tuning fork," spirals are on the parallel branches
Indicate whether the statement is true or false
A 25-kg block on a horizontal surface is attached to a light spring (force constant = 8.0 kN/m). The block is pulled 10 cm to the right from its equilibrium position and released from rest. When the block has moved 2.0 cm toward its equilibrium position, its kinetic energy is 12 J. What is the change in mechanical energy caused by the frictional force on the block as it moves the 2.0 cm?
a. ?4.0 J b. ?3.5 J c. ?2.4 J d. ?2.9 J e. ?15 J