During the recent graduation season in Namibia a total of 8000 students graduated from three different universities UNAM, NUST and IUM. Of the 8000 graduates, 4000 students graduated from UNAM, 3000 students graduated from NUST, while the rest of the students graduated from IUM. A total of 85 out of every 100 students from UNAM graduated from their Business School, while at NUST, 65 out of every 100 students graduated from their Business School, and at IUM, 60 out of every 100 students graduated from their Business School. The Minister of Education in Namibia, randomly selects a student who graduated during this graduation season:
1.1) Find the probability that the selected graduate is from a Business School. (7)
1.2) Calculate the probability that the randomly selected graduate from a Business School is from NUST. (5)
In: Statistics and Probability
A private college advertised that last year their freshman students, on average, had a score of 1100 on the college entrance exam. Assuming that average refers to the mean, which of the following claims must be true based on this information? Note: More than one statement could be true. If none of the statements is true, mark the appropriate box.
Last year some of their freshman students had a score of more than 1000.
Last year, the number of their freshman students who had a score of more than 1100 or was equal to the number of their freshman students who had a score of less than 1100.
Last year all of their freshman students had a score of at least 1100.
Next year at least one of their freshman students will have a score of at least 1100.
Last year some of their freshman students had a score of exactly 1100.
None of the above statements.
In: Statistics and Probability
Question:
An airplane experiences a uniform circular motion. The airplane has an initial velocity of \( \vec v \) = [0.500, 0.330] km/s. Two minutes later, the velocity of the airplane is \( - \vec v \). What centripetal acceleration does the pilot experience?
In: Physics
Balance the following chemical reaction by the half reaction by the half reaction method under both acidic and basic conditions. What was oxidized and what was reduced?
IrO3 + V(OH)4+2 → Ir(OH)5+3 + V+2
In: Chemistry
Watch the following video about the way the field of physics can be separated into subfields: https://www.youtube.com/watch?v=ZihywtixUYo Write a 5-7 sentence reflection on the information presented in the video.
link: https://www.youtube.com/watch?v=ZihywtixUYo
In: Physics
A North American tourist takes his 25.0-W, 120-V AC razor to Europe, finds a special plug adapter, and plugs it into 240 V AC. Assuming constant resistance, what power does the razor consume as it is ruined?
In: Physics
Capacitor C1 = 10.0 micro F is connected in series to parallel combination of capacitors C2=7.0 microF and C3=7.5 microF. This circuit is connected to a battery delivering V=13.0 V. Find energy stored in capacitor C3 in microJ.
In: Physics
Consider the following cell at 277 K:
Fe | Fe2+ (0.567) || Cd2+ (1.063) | Cd
which has a standard cell potential of 0.0400 V. What will be the potential of the cell be when [Fe2+] changes by 0.305 M?
The answer is 0.0383 V
In: Chemistry
Using the inner product on 〈p, q〉 = ∫(0 to1) p(x)q(x)dx on P2, write v as the sum of a vector in U and a
vector in U⊥, where v=x^2, U =span{x+1,9x−5}.
In: Advanced Math
(a) calculate the magnetic field, B required to produce a deflection of 0.25 rad in Thomson’s experiment, assuming the values V= 205 V, length, L = 4.9 cm, and d= 1.5 cm. (b) Find the horizontal velocity vx for this case.
In: Physics