A wave pulse travels down a slinky. The mass of the
slinky is m = 0.89 kg and is initially stretched to a length L =
6.6 m. The wave pulse has an amplitude of A = 0.28 m and takes t =
0.414 s to travel down the stretched length of the slinky. The
frequency of the wave pulse is f = 0.45 Hz.
1)
What is the speed of the wave pulse?
2)
What is the tension in the slinky?
3)
What is the average speed of a piece of the slinky as a complete wave pulse passes?
4)
What is the wavelength of the wave pulse?
5)
Now the slinky is stretched to twice its length (but the total mass
does not change).
What is the new tension in the slinky? (assume the slinky acts as a
spring that obeys Hooke’s Law)
6)
What is the new mass density of the slinky?
7)
What is the new time it takes for a wave pulse to travel down the
slinky?
8)
If the new wave pulse has the same frequency, what is the new
wavelength? (m)
In: Physics
Scroll down to complete all parts of this task
. The Allen Company is a wholesale distributor of automotive replacement parts. Initial amounts taken from Allen's accounting records are as follows:
Inventory at December 31, Year 5 (based on
physical count of goods in Allen's warehouse on December 21, Year 5) $1,250,000
Sales in Year 5 $9,000,000
Accounts payable at December 31, Year 5:
Vendor Terms Amount Baker Company 2/10, Net 30 $265,000
Charlie Company Net 30 210,000
Dolly Company Net 30 300,000
Eager Company Net 30 225,000
Full Company Net 30 --
Greg Company Net 30 --
$1,000,000
Complete Allen's inventory cutoff using the information above. Enter the amounts of any adjustments needed for the effects of the following transactions on Allen's inventory, accounts payable, and sales in the designated cells below. Enter all amounts as positive values. If no entry is necessary, enter a zero (0) or leave the cell blank
. Transactions Inventory Accounts Payable Sales Initial Amount $1,250,000 $1,000,000 $9,000,000
1-3. Retailers were holding $210,000 at cost ($250,000 at retail) of goods on consignment from Allen, the consignor, at their stores on December 31, Year 5.
4-6. Goods were in transit from Greg to Allen on December 31, Year 5. The cost of the goods was $25,000, and they were shipped FOB shipping point on December 29, Year 5.
7-9. A quarterly freight bill in the amount of $2,000 specifically relating to merchandise purchases in December Year 5, all of which was still in the inventory at December 31, Year 5, was received on January 3, Year 6. The freight bill was not included in either the inventory or in the accounts payable at December 31, Year 5.
In: Accounting
You lease a car with a $600 down payment (due at the start of the lease), 48 monthly payments of $553 (first payment due one month from today), and a $12,000 residual value. You plan to keep the car for 6 years total and sell it for an estimated $7,000. If your cost of capital is an APR of 4.8% (compounded monthly), what is the net cost of the lease including the effects of down payment, lease payments, residual value, and estimated $7,000 resale price? Round and express your answer to the nearest whole dollar (i.e., nearest integer).
In: Finance
In: Computer Science
What are the trends of Automation and Artificial Intelligence in the Automotive Industry? Write down in at least 1000 words with references.
In: Economics
Things are not as simple as up is good and down is bad (visa versa). Consider the following statements.
"A rise in long-term interest rates reflect good economic conditions" Versus "A rise in long-term interest rates reflects bad economic conditions."
Both could be true. How is that possible?
In: Economics
We are looking down at a film at 90 deg, and a shining orange light with a wavelength(vacuum) of 710 nm is on the film. It has a refractive index of n = 1.32, and is surrounded by air.
A) draw out a diagram with refractive indices of the surfaces
B) What is the minimum thickness of the film for it to look bright due to reflected light?
Pls show steps and whatever else you can show to understand the question, thanks!
In: Physics
I recently bought a new house for $200,000. There was a 20% down payment, and the rest was financed at 4.8 percent APR with monthly compounding. Monthly payments starting from next month will be $1,248.66. How many years will it take the firm to pay off this debt?
In: Finance
You are ready to buy a house, and you have $25,000 for a down payment and closing costs. Closing costs are estimated to be 4% of the loan value. You have an annual salary of $48,000 (monthly income $4000) , and the bank is willing to allow your monthly mortgage payment to be equal to 25% of your monthly income. The interest rate on the loan is 7.2% per year with monthly compounding (.6% per month) for a 30-year fixed rate loan. How much money will the bank loan you? How much can you offer for the house?
In: Finance
Scientific Method
On a walk down to the beach, you observed that the plants change as you get closer to the sea and finally no plants grow when you get to the beach itself. You also observed that there are salt crystals in the soil close to the beach, but not farther away from it.
1. Formulate a valid question based on the observations listed above.
2. State a proper scientific hypothesis based on your observations and the question you asked above.
3. How are you going to test your hypothesis?
4. What would be the control in your experiment?
5. What are the variables in your experiment?
The independent variable:
The dependent variable:
6. What do you think your conclusion would be?
In: Biology