If an astronaut takes an object to the moon the following is true (choose only one)
A. both the mass and the weight of the object will change.
B. both the mass and the weight of the object will be the same.
C. the weight will change but the mass will be the same.
D. the mass will change but the weight will be the same.
Weight depends on the gravitational force, mass is the amount of ‘stuff’ and doesn’t change.
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The Concorde's exterior is made of aluminum, which has a coefficient of linear expansion of 24 × 10-6 K-1. At 15°C, the Concorde measures 62.1 m in length
When the plane is in flight, friction with the air increases the temperature of the exterior skin to 200°C. What is the change in the length of the outer skin of the Concorde? A) 20 cm B) 24 cm C) 28 cm D) 32 cm E) 36 cm
According to Newton's laws, the planets orbit the Sun due to ________
Fill in the blank(s) with correct word
Your car can accelerate at 8.0 m/s2, and there are 1609 m in one mile. So you can go from zero to 60 mi/hr in about
A. 1.34 s. B. 0.37 s. C. 2.74 s. D. 3.35 s.
According to the hypothesis of de Broglie, any moving particle has
a. energy. b. a magnetic force field. c. an electric force field. d. a wavelength.