Answer: 686 N
Step-by-step explanation:
Hi!
Second Newton's law is: F=m*a, where F is force, m is mass, and a acceleration
On the Earth's surface, weight is the gravity force W=m*g, where g=9.8 m/s² is the acceleretion of gravity on Earth. So the weight of someone with mass m=70 kg is W=70*9.8 kg*m/s² = 686 N.
The unit N (Newton) is defined as 1 N = 1 kg*m/s²
Answer:
C
Step-by-step explanation:
Since the 7 swim teachers had about the same amount of students, you can divide 137 by 7, which comes out to about 20.
The correct answer to this question is B
Answer:
2b + 88 = 180
Step-by-step explanation:
Hope this helps
<h2>
Answer:</h2>
The total number of handshakes that would happen between the three people are:
3
<h2>
Step-by-step explanation:</h2>
There are three people at a party.
Let they be denoted by A,B and C.
Now, the total number of handshakes that would occur will be denoted by:
AB, AC and BC
where AB denotes that A and B shake hands.
AC denote that A and C shake hands.
and BC denote that B and C shake hands.
Hence, total number of handshakes are:
3
