Physics, 12.02.2021 20:00 jinjuwdjesus
Which statement BEST explains why Orion is only visible for a few months of the year?
A.
As the Moon orbits Earth, it can block the view of stars in the night sky.
B.
As Earth rotates on its axis, the direction that Earth faces at night changes.
C.
As the stars of Orion rotate around Earth, they can be blocked by Earth itself.
D.
As Earth revolves around the Sun, the direction that Earth faces at night changes.
Answers: 3
Physics, 22.06.2019 06:00
Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?
Answers: 1
Physics, 22.06.2019 11:10
Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.
Answers: 3
Physics, 22.06.2019 11:30
(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?
Answers: 3
Physics, 22.06.2019 12:30
Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?
Answers: 1
Which statement BEST explains why Orion is only visible for a few months of the year?
A.
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