Monday is named after
What will be an ideal response?
the moon
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A spaceship traveling at constant speed passes by Earth and later passes by Mars. In which frame of reference is the amount of time separating these two events the proper time?
A) the Earth frame of reference B) the Mars frame of reference C) the spaceship frame of reference D) any inertial frame of reference E) any frame of reference, inertial or not
Who is credited with first speculating that matter is composed of tiny unseen units?
A. Democritus B. Aristarchus C. Aristotle D. Newton E. Einstein
The Dawn spacecraft entered into orbit around Ceres in
A) 2008. B) 2012. C) 2015. D) 2016.
The ratio of kinetic energy of object A to the kinetic energy of object B is 2:1. Object A is moving with a speed of 6.0 m/s and object B is moving with a speed of 2.0 m/s. If the mass of object A is 4.0 kg then what is the mass of object B?
A) 2.0 kg B) 4.0 kg C) 8.0 kg D) 18 kg E) 16 kg