Frost wedging is a common type of ______________ weathering
Fill in the blank(s) with correct word
mechanical
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Which of these can feel the electric force?
A) neutrino B) Z particle C) photon D) All of the above. E) None of the above.
An astronaut leaves Earth in a spaceship at a speed of 0.96 c relative to an observer on Earth. The astronaut's destination is a star system 14.4 light-years away (one light-year is the distance light travels in one year
) According to the astronaut, how long does the trip take? A) 14.4 years B) 22.7 years C) 9.34 years D) 15.0 years E) 4.20 years
Heavy nuclei are unstable because
a. each nucleon is a separate particle that is not acted on by the nuclear force. b. there are not enough protons present relative to the number of neutrons for the electrical force to be strong enough. c. the nuclear force dominates the Coulomb repulsive force at distances less than 2 fm, but falls off rapidly at greater distances. d. nuclei are stable only when the number of neutrons equals the number of protons. e. nuclei are stable only when the number of protons exceeds the number of neutrons.
A proton's rest mass is 1.67 × 10?27 kg. Calculate its total energy when it is accelerated to a speed of 0.80c.
A. 1.5 × 10?10 J B. 1.0 × 10?10 J C. 2.5 × 10?10 J D. 2.0 × 10?10 J E. 7.5 × 10?10 J