in your own words!!!! explain the events of world war 2! must be in essay form!!!!
The block of mass \(\mathrm{M}\) in the following figure slides on a frictionless surface. (Figure 1)
Find an expression for the tension in the string.
Express your answer in terms of the variables \({m},{M}\), and appropriate constants.
In: Physics
The figure shows a 100kg block being released from rest from a height of 1.0 m. It then takes it 0.90 s to reach the floor. What is the mass of the other block? The pulley has no appreciable mass or friction.
A. 60 kg B. 48 kg C. 54 kg D. 42 kg 

In: Physics
Check that the ratio \( ke^2/Gm_em_p \) is dimensionless. Look up a Table of Physical Constants and determine the value of this ratio. What does the ratio signify?
In: Physics
Solve the 4 degree polynomial equation \( x^4 − 2x^3 + 4x^2+ 6x − 21 = 0 \), given that the sum of two its roots is zero.
In: Advanced Math
The storage battery of a car has an emf of 12 Volt. If the internal resistance of the battery is 0.4 Ω, what is the maximum current that can be drawn from the battery?
In: Physics
Detail the Mongol invasions and subsequent Mongol Empire and explain how the Mongols helped to transform both Asia and Europe.
In: History
What is the cultural legacy of the mongol empire? What are some of the great achievements of the Mongol Empire that mark its cultural legacy?
In: History
$$ \begin{array}{ll} \text { Direct materials } & \$ 38,000 \\ \text { Direct labor cost } & \$ 21,000 \\ \text { Direct labor hours worked } & 280 \\ \hline \end{array} $$
In: Accounting
Landen Corporation uses a joborder costing system. At the beginning of the year, the company made the following estimates:
Direct laborhours required to support estimated production  150,000  
Machinehours required to support estimated production  75,000  
Fixed manufacturing overhead cost  $  420,000 
Variable manufacturing overhead cost per direct laborhour  $  4.60 
Variable manufacturing overhead cost per machinehour  $  9.20 
During the year, Job 550 was started and completed. The following information is available with respect to this job:
Direct materials  $  195 
Direct labor cost  $  288 
Direct laborhours  15  
Machinehours  5  
Required:
1. Assume that Landen has historically used a plantwide predetermined overhead rate with direct laborhours as the allocation base. Under this approach:
a. Compute the plantwide predetermined overhead rate.
b. Compute the total manufacturing cost of Job 550.
c. If Landen uses a markup percentage of 200% of its total manufacturing cost, what selling price would it establish for Job 550?
2. Assume that Landen’s controller believes that machinehours is a better allocation base than direct laborhours. Under this approach:
a. Compute the plantwide predetermined overhead rate.
b. Compute the total manufacturing cost of Job 550.
c. If Landen uses a markup percentage of 200% of its total manufacturing cost, what selling price would it establish for Job 550?
(Round your intermediate calculations to 2 decimal places. Round your Predetermined Overhead Rate answers to 2 decimal places and all other answers to the nearest whole dollar.)
In: Accounting
.Evaluate Microsoft’s recent expansions into areas such as search engines and smart phones. Do you think these are good areas of growth for Microsoft? Why or why not?
In: Operations Management
1.Evaluate Microsoft’s product and marketing evolution over the years. What has the company done well, and where did it falter?
In: Operations Management
QD = 200 2P + ½Y
QS = 3P – 100
Given the above Demand and Supply functions, what is the impact on the Market Equilibrium of Y increasing from 0 to 20?
In: Economics
Given:
QD = 132 – 8P
QS = 6 + 4P
(i) Find the equilibrium P and Q.
(ii) How does a per unit tax t affect outcomes?
(iii) What is the equilibrium P and Q if unit tax t = 4.5?
In: Economics
Four identical hollow cylindrical columns of mild steel support a big structure of a mass 50,000 kg. The inner and outer radii of each column are 30 and 60 cm respectively. Assuming the load distribution to be uniform, calculate the compressional strain of each column.
In: Physics