Me out

a student want to pick up a box that weighs 15 n. which statement below is true?
question 2 options:

a) with 5 n of upward force, the student can lift the box

b) since he is lifting it, any amount of upward force will lift it.

c) anything greater than 15 n will lift it because he has to overcome the weight first.

d) upward force does not determine whether the box could be lifted.

C

Explanation:

Because you would need to be able to handle the weight to move it.

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.

d

explanation:

v=uf/(u-f)

= 5.10/(5-10) convex lens has positive focal length

=50/-5

=-10 cm (formed at other side)