Physics
Suppose the block is released from rest with the spring compressed 5.50 cm. The mass of the block is 1.60 kg and the force constant of the spring is 965 N/m . Assume the surface is frictionless. A) What is the speed of the block when the spring expands to a compression of only...
D/dt
Thank you for the equation and the useful article. :) So this is what I get. f(t) dt= 2(0)- [sqrt(t^2+1) * 2t] f(t) dt= -sqrt(t^2+1) *2t Is this correct? Thank you so much. :-)
D/dt
Calculate d/dt when a=t^2, b=2 and sqrt(x+1)dx. My answer turns out to be incorrect despite my checking it several times. I got -2/3t* sqrt(t^2+1) Can someone explain to me what is wrong with my answer and how to go about obtaining it the right way? Thank you everyone. :-)
Language Arts
Which sentence below has a missing antecedent? A Many people are planning to attend the race, so we should get to the park early. B My parents are both swimmers, so I know a lot about it. C When Steven and Patrick went to the movies, he bought the tickets. Is it B??
LIFE ORIENTATION
identify and describe 3 environmental health hazard that cause ill health within your community and include evidence that is current if the identified issues.use graphs ,statistics, pictures
Math
Stuart needed to purchase cleaning supplies for his company. He purchased 15 rolls of paper towels for $0.65 each, 15 bottles of cleaning solution for $1.25 each, 4 containers of garbage bags for $2.45 each and 3 new mops for $6.98 each. He received a 15% discount using his fr...
Chemistry
Figured it out, it is 11. :)
Chemistry
If the Kb of a weak base is 1.5 × 10^-6, what is the pH of a 0.25 M solution of this base? I found that I need to use the quadratic equation but I'm having difficulties because I come up with taking the square root by zero and that isn't right. Please help! a=1, ...
MATH
THE AREA OF A RECTANGUALR GARDEN IS 240 SQ FT. IF THE LENGTH OF THE GARDEN IS 20 FT.,WHAT IS ITS WIDTH?
MATH
THE AREA OF A RECTANGUALR GARDEN IS 240 SQ FT. IF THE LENGTH OF THE GARDEN IS 20 FT.,WHAT IS ITS WIDTH?
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