Questions asked
A car of mass 1400 kg moving North at 62 km h collides with another car of mass 1200 kg moving West at 45 km h . The two cars stick together after the collision. (a) Find their speed after the collision. (b) Find the amount of kinetic energy lost in the collision.
5. You have twelve socks in your drawer, six brown and six black. You get up early in the morning, while it is still dark, reach into your drawer, and grab two socks without looking.What is the probability that the socks are the same color?
Question 402 pts Right-handed golfers will likely incur epicondylitis where? Group of answer choices B. lateral epicondylitis on the right side C. medial epicondylitis on the left side D. occurs with equal frequency on both sides of both arms A. lateral epicondylitis on the left side
Add curved arrow(s) to draw the final step of the mechanism.
Find the most general antiderivative or indefinite integral.\\ $\int \frac{t^7 \sqrt{t^4} + 5 \sqrt{t^3}}{t^2} dt$ \\ $\int \frac{t^7 \sqrt{t^4} + 5 \sqrt{t^3}}{t^2} dt = $
Question 21 (1 point) The ability to understand, communicate with, motivate, and support other people, both individually and in groups, may be defined as cognitive skills conceptual skills analytical skills human skills technical skills
( A ) is a ( 2 imes 3 ) matrix and ( B ) is a ( 3 imes 2 ) matrix. Determine if the following matrix operations are possible. If the operation is possible, give the size (if not, enter DNE.) (a) ( 3 A ) size = (b) ( A-B ) size = (c) ( A B ) size = (d) ( B A ) size =
4 2 points Rank the following gases in order of decreasing speed at 250 K. fastest 1 C$_2$H$_6$ 2 Ar 3 N$_2$ 4 HBr slowest
2023 fall Based on a poll, 70% of Internet users are more careful about personal information when using a public Wi-Fi hotspot. What is the probability that among four randomly selected Internet users, at least one is more careful about personal information when using a public Wi-Fi hotspot? How is the result affected by the additional information that the survey subjects volunteered to respond? The probability that at least one of them is careful about personal information is (Round to three decimal places as needed)
3.18 Using the method of Section 3.5, determine the axial stress in each of the bar elements shown in Figure P3-18. $E = 30 \times 10^6 \text{ psi}$ $A = 2 \text{ in}^2$ $L = 60 \text{ in.}$ $v_1 = 0$ $v_2 = 0.02 \text{ in.}$ $l_1 = 0$ $l_2 = 0.01 \text{ in.}$
