Answer:
-1m
Explanation:
I'm assuming it means that you treat the distance travelled as a displacement vector (distance of a particular direction and magnitude)
If he turns 180 degrees, he is travelling in the exact opposite direction to his original direction of travel. Therefore if he was travelling 5m in one direction, then afer his turn he travels 6m in the exact opposite direction. Opposite directions can be interpreted as the negative of the original direction.
Resultant vectors are the sum of vectors.
The sum of vectors is equal to 5m + - 6m = -1m
Answer:
<h3>6.80kg, 6.70kg and 6.90kg.</h3>
Explanation:
To get the set of measurements that best represents accuracy if the true value is 6.80 kg, we will find the mean of the set of numbers and chech which is equal to 6.80kg
According to the set of data 6.8kg, 6.7kg and 6.9kg
Mean = sum of the number/sa mple size
Sum of the numbers = 6.8+6.7+6.9 = 20.4
sample size = 3
Mean of the set of measurement = 20.4/3
Mean of the set of measurement is 6.80kg
Since the answer is 6.8kg, hence set of measurements that best represents accuracy are 6.80kg, 6.70kg and 6.90kg.
The answer is B high pressure.
Answer:
The time interval is
Explanation:
From the question we are told that
The length of the string is
The mass of the string is
The tension on the string is
The velocity of the pulse is mathematically represented as
Where is the linear density which is mathematically evaluated as
substituting values
Thus
The time taken is evaluated as
substituting values
Answer:
Explanation:
Given data
Length L=2.9 cm=0.029m
Speed of sound v=335 m/s
to find
Fundamental frequency f
Solution
As we know that frequency is given as:
f=v/λ