Answer:
660V
Explanation:
V=IR
V=11×60
=660V
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Answer:
2697.75N/m
Explanation:
Step one
This problem bothers on energy stored in a spring.
Step two
Given data
Compression x= 2cm
To meter = 2/100= 0.02m
Mass m= 0.01kg
Height h= 5.5m
K=?
Let us assume g= 9.81m/s²
Step three
According to the principle of conservation of energy
We know that the the energy stored in a spring is
E= 1/2kx²
1/2kx²= mgh
Making k subject of formula we have
kx²= 2mgh
k= 2mgh/x²
k= (2*0.01*9.81*5.5)/0.02²
k= 1.0791/0.0004
k= 2697.75N/m
Hence the spring constant k is 2697.75N/m
Mechanical or Electromagnetic
ANSWER IS A)
THE SPEED IS 25 M/S FOR BOTH PEOPLE
Answer:
C
Explanation:
A watt is a joule per second. Since he is working over 3 seconds you have to divide his work over three seconds which is 200/3. This gets you 66.7 watts.
