why did my answer get deleted??
oh yeah i put a link on there- oopsies.
I wont this time!
I got 30!
Answer: B
Explanation: the teacher just told us the answer
Answer:
A
Explanation:
We know the force is (16N-12), which is 4N, and we know the acceleration is 2 m/s^2. Meaning, we can solve the formula m = F / a (mass equals force divided by acceleration), and we get 2kg.
Answer:4
Explanation:
Given
Frequency of beats is 3 beats per second
Frequency of first tuning fork is 
Beat frequency is difference in the frequency of tuning forks i.e.
either 
or 
so 
or
so there is not enough information given to decide.
<span>C. It is the difference in electrical potential energy between two places in an electric field.</span>
