please I don't really know how to start answering this question I really need to understand it

please show the work with a clear handwriting

A collision in one dimension

A mass m1 = 2 kg moving at v1i = 3 ms−1 collides with another mass m2 = 4 kg moving at

v2i = −2 ms−1. After the collision the mass m1 moves at v1f = −3.66 ms−1. (a) Calculate the final velocity of the mass m2.

(b) After the collision the mass m1 slides across a surface with coefficient of friction μ = 0.6. Calculate how far it travels before it comes to rest.

A target in a shooting gallery consists of a vertical square wooden board, 0.230 m on a side and with mass 0.700 kg , that pivots on a horizontal axis along its top edge. The board is struck face-on at its center by a bullet with mass 1.60 g that is traveling at 355 m/s and that remains embedded in the board.

A. What is the angular speed of the board just after the bullet's impact?

B. What maximum height above the equilibrium position does the center of the board reach before starting to swing down again?

C. What minimum bullet speed would be required for the board to swing all the way over after impact?

Tobias has a wife and child (Emily) who live with him full-time. Emily is his biological child and is age 13. He and his wife file as Married Filing Jointly. In 2018, Tobias and his wife (she earned $10,000) had $78,000 in total income. After accounting for numerous deductions, etc. (but before accounting for tax credits) Tobias estimates that his federal income tax for the year will be $6,950. Given this limited information, how much do you believe this tax bill will be after accounting for any tax credit(s)?

Group of answer choices

$6,450

$1,550

$4,950

$450

1. Tip Top Corporation currently has 5000 shares outstanding and the current price per share is $63.00. Amy owns 145 shares of Tip Top. The board is thinking about doing a 2-3 stock split.

What is the total dollar value of Amy’s investment in Tip Top BEFORE the split? ______

How many total shares outstanding will Tip Top have AFTER the split? __________

What will be the share price AFTER the split? ____________

2. Instant Makeover Cosmetic Company has a return on its stock of 9%. If the Beta for this stock is .95 and the risk free rate is 3%, what is the rate expected in the marketplace? ________________

Consider an industry with demand Q = a − p where 3 identical firms that compete a la
Cournot. Each firm’s cost function is given by C = F + c q. Suppose two of the firms merge and that the
merged firm’s cost function is given by C = F'+C'q, where F<F'<2F
(a) Determine each firm’s market share before and after the merger.
(b) Suppose that a = 10 and c = 3. Determine the Herfindahl index after the merger takes place when
(i) c'=2  (ii) c'=1 Compare this to the post-merger Herfindahl index calculated based on
pre-merger market shares

Flounder Company, which is subject to a 40% income tax rate, projected its income before taxes for next year as shown here:

1) If Flounder wants $7,650,000 in pretax earning, what is the required level of sales, in dollars?

2) If Flounder’s net assets are $61,200,000, what amount of revenue must be achieved for Flounder to earn a 10% after-tax return on assets?

3) If Flounder wants after-tax earnings of 30% of sales, what is the required level of sales in dollars and in units?

A researcher would like to evaluate the effectiveness of a pain-relief patch designed for lower back pain. Prior to testing the patch, each of n = 4 patients rates the current level of back pain on a scale from 1 to 8. After wearing the patch for 90 minutes, a second pain rating is recorded. The data are as follows.

​

                                                Before        After

                                          __________________

                   G = 36                  6          2

                  G² = 784                6          2

                ΣX² = 192                4          4

                                                8          4

                                         ______________________

                                            T = 24   T = 12

                                          SS = 8    SS = 4

Perform an ANOVA and then analyze the data with a t-test. Use the .05 level of significance for both.

Book Name: Principles of Managerial Finance - 180 Day Option, 14th Edition
Lawrence J. Gitman

P2–5 Interest versus dividend expense   Michaels Corporation expects earnings before interest and taxes to be $50,000 for the current period. Assuming an ordinary tax rate of 35%, compute the firm’s earnings after taxes and earnings available for common stockholders (earnings after taxes and preferred stock dividends, if any) under the following conditions:

1. The firm pays $12,000 in interest.
2. The firm pays $12,000 in preferred stock dividends.

Please provide me with a detailed calculation for my study purpose thank you!

Problem 1) For each of the following sentences, indicate whether it is a language rule that is enforced by the Java compiler or a convention (that is, not enforced by the Java compiler but most programmers follow it).

(a) Variable names must begin with a lower-case letter.
(b) The name of a class must match the name of the file containing it.
(c) All variables must be declared.
(d) There must be a space before and after each operator.
(e) All lines after a left curly brace must be indented.
(f) Class names must begin with an upper-case letter.
(g) Every program must begin with comments describing the author of the program and what the program does.