Herz is a measurement for how many cycles of the wave occur per second, which in this case is 261. the period is the time it takes to complete 1 cycle, so if 261 cycles occur per second, one cycle occurs every 1/261 seconds
Answer:
Galileo four key observations are
1. Jupiter has orbiting moons.
2. The Sun has sunspots and rotates on its axis.
3. The Moon has mountains, valleys, and craters.
4. Venus goes through a full set of phases.
Explanation:
The above are Galileo's observations that went against the geocentric model and the general beliefs about the universe at the time.
His most critical observation was when he stated that planet Venus is different phases; this observation has a direct impact on the notion that objects orbit the Sun but not the Earth.
He went further to state his observations that the Sun and Moon had surface rough and imperfect surface. This observation disproved the idea that the moon and the Sun had perfect surfaces.
Galileo's observations of Jupiter's orbiting moons showed that there were other centers of motion in the universe.
Answer:
inertia
Explanation:
a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.
aka
it goes on because nothing is resisting it, in this case however, the car is there to stop it, and the result is spilled coffee (rip)
The linear speed of the ladybug is 4.1 m/s
Explanation:
First of all, we need to find the angular speed of the lady bug. This is given by:
where
T is the period of revolution
The period of revolution is the time taken by the ladybug to complete one revolution: in this case, since it does 1 revolution every second, the period is 1 second:
T = 1 s
Therefore, the angular speed is
Now we can find the linear speed of the ladybug, which is given by
where:
is the angular speed
r = 65.0 cm = 0.65 m is the distance of the ladybug from the axis of rotation
Substituting, we find
Learn more about angular speed:
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