A four-cylinder petrol engine has a swept volume of 2000 cm3, and the clearance volume in each cylinder is 60 cm3. Calculate the air standard cycle efficiency. If the introduction conditions are 1 bar and 24 ?C, and the maximum cycle temperature is 1400 ?C, calculate the mean effective pressure based on the air standard cycle.
ANSWERS(59.1%; 5.30 bar)
In: Mechanical Engineering
A vehicle which is equipped with a 6 cylinder, 2000 cc spark ignition engine is cruising at an average speed of 150 km/h from Ankara to Istanbul on the highway. The mass of the vehicle with single driver is 1200 kg and its projected frontal area is 3 m2. The coefficient of rolling resistance is 0.015 and the discharge coefficient is 0.3. The distance between Istanbul and Ankara is approximately 450 km. Assuming an average brake specific fuel consumption of 250 g/hp-h, calculate how many liters of fuel will be used during this journey ( r fuel = 0.73 g/cc and ambient air density r a=1.2 kg/m3).
In: Mechanical Engineering
two subway cars as shown in Figure 1 have mass m = 2000 kg and are connected by a coupler that can be modeled as a spring of stiffness k = 280,000 N/m. Use Newton’s method to derive the equations of motion, calculate the natural frequencies and determine the associated mode shapes. also, find the time response x1(t) and x2(t) of the subway initial conditions: x(0)= [ 0, 0.2] with zero initial velocity vector.
In: Mechanical Engineering
On January 1, 2000 Apple Company acquired all of the stock of Pear Company at book value. Apple accounts for its investment in Pear using the initial value method and Pear doesn't pay any dividends.
On January 1st 2015 Pear Company issued $1,000,000 face value bonds for $930,000 These 7% bonds pay interest each July 1 and January 1. Pear uses straight line amortization on these 20 year bonds.
On January 1, 2020, Apple Company acquired all of the Pear bonds for $955,000.
1. Make the necessary worksheet entries for 2020
2. In 2020, Apple reported unconsolidated income of $900,000 and Pear reported income of $100,000 what is consolidated income
3. make the necessary worksheet entries for 2021
4. in 2021, Apple reported unconsolidated inocme of $800,000 and Pear reported income $125,000 what is consolidated income
In: Accounting
3. In 2000, a sample of 209 people aged 18-30 found that they spent an average of 6.75 hrs/week on the internet. In 2006, a sample of 541 people aged 18-30 spent an average of 7.34 hrs/week on the internet. Has the average increased?
Use correct notation where appropriate.
For each of the following situations,
a) What is/are the population(s) in the study?
b) Does the scenario involve 1 or 2 parameters to be
estimated/tested/compared?
c) What is/are the parameter(s) to be estimated/tested/compared? Be
specific and use the appropriate notation.
d) What is/are the variable(s) involved. Is each numerical or
categorical?
e) Is it most appropriate to create a confidence interval or
conduct a hypothesis test? If a hypothesis test should be
conducted, state the
hypotheses.
f) Will the critical value or test statistic be a z-value or
t-value?
In: Statistics and Probability
Andy, a single man, buys a house in
2000 for $210,000 as his personal residence, living there 100% of
the time. He has not made any improvements on the house since then.
In 2019, he sells the house for $360,000, and moves to
France.
How much of a Long-Term Capital Gain did he
realize?
a. He did not realize any LTCG on this transaction
b. He realized $75,000 in LTCG on this transaction
c. He realized $150,000 in LTCG on this transaction
How much income tax will Andy have to pay, related to the sale of his house? His
other income puts him in the 25% marginal tax bracket for ordinary income.
a. $ 0 b. $ 11,250 c. $ 18,750 d. $ 22,500 e. $ 37,500
In: Accounting
On January 1st 2000 Froto Company acquired 100% of the voting stock of Bilbo Company at book value.
Froto uses the initial value method (cost) and Bilbo doesn't pay any dividends.
On October 1st 2020 Froto sold some merchandise (inventory) to Bilbo company for $1,000,000 credit
the inventory had cost Bilbo $600,000. Both Bilbo and Froto use the perpetual inventory method.
During 2020 Bilbo had sold 70% of the merchandise acquired from Froto for $750,000 but had not paid off Froto
During 2021 Bilbo sold the remaining merchandise for $325,000 and paid off Froto
In 2020 Froto (unconsolidated) reported income of $1,000,000 and Bilbo reported income of $40,000
In 2021 Froto (unconsolidated) reported income of $1,200,000 and Bilbo reported income of $77,000.
| REQUIRED: | |||||
| A)Make Froto's journal entry when it sells the merchandise to Bilbo in 2020 | |||||
| B) make Bilbo's journal entry when it buys the merchandise from Froto in 2020 | |||||
| c) make any necessary worksheet entries in 2020 | |||||
| d) determine consolidated income for 2020 | |||||
| e) make any necessary worksheet entries in 2021 | |||||
| f) make any necessary worksheet entries in 2021 | |||||
| g) determine consolidated income for 2021 | |||||
In: Accounting
A tank contains 90 kg of salt and 2000 L of water: Pure water enters a tank at the rate 8 L/min. The solution is mixed and drains from the tank at the rate 4 L/min. What is the amount of salt in the tank initially? Find the amount f salt in the tank after 4.5 hours. Find the concentration of salt in the solution in the tank as the time approaches infinity. (Assume your tank is large enough to hold the solution.)
In: Math
(each question is separate and do not build on each other)
In: Economics
(each question is separate and do not build on each other)
In: Economics