SOMEONE HELP ME PLSS
2 answers:
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Answer:
Explanation:
given,
weight of the man = 680 N
weight of the woman = 500 N
mass of man =
M_m = 69.4 Kg
mass of woman
=
M_w = 51 Kg
ratio of man's kinetic energy Km to that of the woman Kw
momentum is same
Answer:
A )
b) There are approximately 100,000,000 atoms on the 1.32 cm lines
Explanation:
To ensure the accuracy of our answer, we will have to make sure we work in the appropriate units.
A
To convert to inches, we can use this factor.
1 m = 39.3701 inches
Therefore =
B
To find the number of atoms on a 1.32 cm line, we will first of all need to convert 1.32 cm to meters.
1.32 cm = 0.0132 metres (divided 1.32 by 100 to convert to metres)
Assuming all the atoms are arranged side by side, with their edges touching on the 0.0132m line, the number of atoms present will be
= 100,000,000 atoms
Answer:
12500W
Explanation:
Given parameters:
Work done = 250000J
Time taken = 20s
Unknown:
Power of the crane = ?
Solution:
Power is the defined as the rate at which work is being done;
Mathematically;
Power =
insert the parameters and solve;
Power = = 12500W