Answer:
(b) 17 1/3
Step-by-step explanation:
mixed number
A number is written as a whole number and a fraction
Answer:
Let the amount of Danny be y
Therefore, lance will have 1/3y
Total fraction of cup is 1/1
y+y/3=1
4y/3=1
4y=3
y=3/4
therefore, lance had 3/4 of the cup of water
Answer:
40
Step-by-step explanation:
What we need here is to know how many of 1 inch are there in 40 inches
This is straightforward, what we need to do here is to imagine having to mark 1 inch length on the ribbon using a mark of a scissors.
What we will notice is that we need to make 40 marks to have exhausted the entire length of the ribbon.
This is obtained by dividing the total 40 by 1 which is 40
= 1/2kx2
U = potential energy of a spring at a certain position
k = the spring constant, specific to the spring, with units N/m.
x = distance the spring is stretched or compressed away from equilibrium
Potential Energy: Elastic Formula Questions:
1) A spring, which has a spring constant k = 7.50 N/m, has been stretched 0.40 m from its equilibrium position. What is the potential energy now stored in the spring?
Answer: The spring has been stretched x = 0.40 m from equilibrium. The potential energy can be found using the formula:
U = 1/2kx2
U = 1/2(7.50 N/m)(0.40 m)2
U = 0.60 N∙m
U = 0.60 J
