Answer:
chemical change through chemical process .
physical change means change in dimension.
Answer:
Pushing a box with 100 newtons of force for 15 meters does more work.
Explanation:
Given,
The force for pushing a box for 5 meters, f = 200 N
The force for pushing a box for 15 meters, f = 100 N
The work done on a box is equal to the product of the magnitude of the force 'F' applied and the magnitude of displacement 'S' caused on the box.
The formula for work is
W = F · S joules
Substituting the above equation for f
W = 200 N x 5 m
= 1000 J
Substituting the for F
W = 100 N x 15 m
= 1500 J
Hence, from the above results pushing a box with 100 newtons of force for 15 meters does more work.
Answer:
It can cause humans to get sick. And it affects our health
Explanation:
Answer:
519.62 m/s
Explanation:
Applying,
v = √(T/m').............. Equation 1
Where v = velocity of the wave, T = Tension on the string, m' = mass per unit length of the string
From the question,
Given: T = 1350 N, m' = 0.005 kg/m
Substitute these values into equation 1
v = √(1350/0.005)
v = √(270000)
v = 519.62 m/s
Ptotal=Ptotal —> m1v1+m2v2=m1v1’+m2v2’ —> (1kg)(2m/s)+(1kg)(0m/s)=(1kg)(-1m/s)+(1kg)(v2’) —> v2’=3m/s
answer: v=3m/s