Answer:
4Joules
Step-by-step explanation:
According to Hooke's law which states that extension of an elastic material is directly proportional to the applied force provide that the elastic limit is not exceeded. Mathematically,
F = ke where
F is the applied force
K is the elastic constant
e is the extension
If a spring exerts a force of 6 N when stretched 3 m beyond its natural length, its elastic constant 'k'
can be gotten using k = f/e where
F = 6N, e = 3m
K = 6N/3m
K = 2N/m
Work done on an elastic string is calculated using 1/2ke².
If the spring is stretched 2 m beyond its natural length, the work done on the spring will be;
1/2× 2× (2)²
= 4Joules
Use sin
Sin35=x/4.1
X=4.1×sin35
=2.351
=2.4m
Answer is 2.4
Answer:
The first set.
Step-by-step explanation:
15 cm, 8 cm and 6 cm, because 15 > 6 + 8.
Answer:
A = 
ft²
Step-by-step explanation:
The formula for the area of a rectangle is:
A = l x w, where 'l' is the length and 'w' is the width
Given the dimensions of the print:
w = 
l = 
A = 
