When an electron moves in a direction opposite to the electric field, its potential increases but the potential energy decreases
Indicate whether the statement is true or false
TRUE
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Newton's modification of Kepler's Laws allows us to find the ________ of the planets, if we can observe satellites in orbit about them
Fill in the blank(s) with correct word
When is the angular momentum of a system constant?
A) Only when its total kinetic energy is constant. B) Only when the linear momentum and the energy are constant. C) Only when no net external torque is exerted on the system. D) Only when the moment of inertia is constant.
Where did the Apollo 11 lunar module land and sample?
a. Taurus–Littrow region b. Taurus–Littrow region c. Mare Tranquillitatis d. Hadley Rille e. Descartes region
The lifetime of a ?+ meson normally is 18 nanoseconds. In a large particle accelerator, scientists can create ?+ mesons moving at speeds close to the speed of light. What do the scientists observe when they measure the lifetime of a ?+ meson that is created at high speed?
A) The ?+ meson lasts much more than 18 nanoseconds. B) The ?+ meson lasts 18 nanoseconds. C) The ?+ meson lasts much less than 18 nanoseconds. D) The ?+ meson no longer decays and remains as a stable particle.