Answer:
d. The hammer falls with a constant acceleration
Explanation:
Since gravity is the only thing that is acting on the hammer as it falls and gravity is a form of acceleration then acceleration of 9.81m/s² which is gravity is the correct answer.
The organism shown above belongs to "the animal kingdom".
<u>Answer:</u> Option C
<u>Explanation:</u>
The biological classification's hierarchy involves eight important taxonomic ranks. They are written below in decreasing order: Life > Domain > Kingdom > Phylum > Class > Order > Family > Genus > Species.
The U.S and Canada have historically used a six-kingdom scheme in their traditional textbook, such as Plantae, Animalia, Protista, Fungi, Archaea / Archaebacteria, and Bacteria / Eubacteria. The given image depicts snake which come under "Animalia Kingdom", carnivorous reptiles to suborder Serpentes.
<em><u>Five</u></em>
This is exactly like your question 2. You need only substitute the given numbers here.
Givens
- N = 100 turns
- delta B = 0.25
- r = 0.04
- Area = pi * r^2 = 3.14 * 0.04^2 = 5.02 * 10^-3
- Cos 60 = 1/2 = 0.5
Formula
e = N * delta B * Area * cos phi
Solution
e = - 100 * 0.25 * 5.02 * 10^-3 * 0.5
e = 0.0628 = 0.063
Answer
A
<em><u>Six</u></em>
This is a notes question. The result is a sine curve. I don't know how they are counting the change in direction. Is a rising curve different from a falling curve? For sure going from plus to minus is a change in direction, but I still don't know how to count it. It will depend on what you have been told.
I would answer 4 but this is by no means certain. The only other possible answer is 2
In 1600 when William Gilbert published De Magnete
