Answer:
option B
Explanation:
given,
toy car is moving in circular track
speed is doubled— a change of a factor of 2
to find change in factor of acceleration
radius doesn't change
centripetal acceleration formula
= 
velocity is change in factor of 2
so acceleration will be change at the factor of
= 
= 2² = 4
so the correct answer is option B
Answer;
B. both a non-directional and directional hypothesis
Explanation;
A two-tailed test is the standard test of significance to determine if there is a relationship between variables in either direction. Two-tailed tests do this by dividing the .05 in two and putting half on each side of the bell curve.
A non-directional hypothesis is a type of alternative hypothesis used in statistical significance testing. In contrast, a directional alternative hypothesis specifies the direction of the tested relationship, stating that one variable is predicted to be larger or smaller than null value, but not both.
I had this question before can you show me the answer choices
The answer is C.
they run east to west which makes them parallel to the equator and they measure distances north and south.
I hope this helps.
Answer:
The answer is <u><em> C </em></u>
Explanation:
I looked it up
