Help please! An archer shoots an arrow horizontally at +50 m/s from a height of 1.5 m.
1. How long does it take the arrow to hit the ground?
2. The archer accidentally drops an arrow from the same height (1.5m). How long does it take this arrow to hit the ground?
3. What is the final horizontal velocity of the arrow just before it hits the ground?
4. Which of the following graphs correctly depicts the arrow's horizontal position over
time?

from 1609, galileo galilei used the recently invented telescope to observe the sun, moon and planets. he saw the mountains and craters of the moon, and for the first time revealed the planets to be worlds in their own right. galileo also provided strong observational evidence that planets orbited the sun.

his discoveries about the moon, jupiter's moons, venus, and sunspots supported the idea that the sun - not the earth - was the center of the universe, as was commonly believed at the time.galileo turned his gaze toward venus, the brightest celestial object in the sky - other than the sun and the moon.

c)as speed changes, wavelength and frequency change.

everything changes!

as technology advances, new experiments often expose problems in accepted theories. c

hope i

-lavira: )

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.