Answer:
<u>A</u>
Explanation:
The heart cells must contract simultaneously to move blood.
This means that it needs to act fast and efficiently.
Therefore, the connections among heart cells are characterized by :
- having many branches
- having many communicating junctions
The correct option should be <u>A</u>
Answer: A wave with a frequency of 14 Hz has a wavelength of 3 meters. At what speed will this wave travel? 1. = 3m (4. = 42m. 2. ... 1,7m (46) = 7802 m. 4. A wave traveling at 230 m/sec has a wavelength of 2.1 meters. What is the frequency of.
Explanation: please give me brainlest
Question 1: C Question 2: B, Hope this Helps!
I think the gravity doesn't affect the mass of an object. Only it's weight can be compared
Answer:
375 ms
Explanation:
the frequency of metronome , f = 160 beats per minute
f = 160 /60 beats per sec
f = 2.67 beats /s
the period of a single beat , T = 1/f
T = 1/2.67 s
T = 0.375 s = 375 ms
the period of a single beat is 375 ms
