Answer:
k first of all, ur not hopeless. everyone needs a bit of help some time.
Explanation:
The answer should be B.
This is because we can learn with new technology and data and evidence how we can change or fix an old theory that may have been made a long time ago. For example, with new data, we can learn and change our old ideas that were made years ago. Now, our data can be more precise. Therefore, our ideas and theories will also change as data changes.
56.25J because the formula for kinetic energy is Ek=1/2 x mass x velocity^2
Ek= 1/2 x 0.5 x 15^2
= 56.25J
'B' and 'C' are both true.
Answer:
Explanation:
Answer:
Speed of water at the top of fall = 5.40 m/s
Explanation:
We have equation of motion
Here final velocity, v = 26 m/s
a = acceleration due to gravity
displacement, s = 33 m
Substituting
Speed of water at the top of fall = 5.40 m/s
Answer:
Yes Newton's laws apply to small objects
EX: Newton s first law
when body at rest always want to be at rest
or body at motion always want to be at motion
unles an external force acts upon it
for example a eraser on the table will be at rest
if so e apply some force then it comes motion
so, Newton s law apply to small object s