Search
Symbolic Logic
Can you figure out the values of the following below? Why or why not
1. (H ≡≡ A) ⊃J (G ≡≡ B)
2. ~ (X· G)
For each of the following pairs of sentences below, indicate whether (1) is a sufficient condi[1]tion for (2), a necessary condition for (2), both, or neither
3. (I) Amy is not a student. (2) Amy is neither a student nor a teacher.
4. (1) John loves Mary. (2) Someone loves Mary.
Symbolic Logic
Compute the truth values of the following, given that A, B, and C are true, and X, Y, and Z are false.
1. ~ [((A⊃J ~B) ⊃J~C) ⊃J~X]
2. [(((A⊃J B) ⊃J X) ⊃J Z) ⊃J Y] ⊃J [((X ⊃J Z) ⊃J A) ⊃J X]
Compute the truth values of the following, using the values given in the above Exercise, but without being given the values of G, H, or f.
3. (A∨B) ≡((G∨H) ⊃A)
4. (G ≡≡ (H· A)) ⊃J «~H V I) ⊃J (X⊃J Z))
A 3kg object travels in a uniform circle at a constant speed of 12m/s. The centripetal force acting on the object is 110 Newtons.
Calculate the time required for the the object to complete one full circle.
A 3kg object travels in a uniform circle at a constant speed of 12m/s. The centripetal force acting on the object is 110 Newtons.
Calculate the weight of the object
A bullet leaves the barrel of a gun at a speed or 320 m/s at an angle of 45 degrees above the horizontal. At the moment the bullet leaves the barrel, the acceleration of the bullet is:
A. 0
B. 320m/s to the right
C. 9.8m/s upward
D. 9.8m/s downward
An automobile with an initial speed of 3.40 m/s accelerates uniformly at the rate of 6.0 m/s2. Find the final speed after 5s.
In the study of urinary tract infection, the sample and proportion in the group of
fosfomycin / trometamol was 25, 0.92 and trimethoprim / sulfamethoxazole was
16, 0.61, respectively.
a) Find the difference in proportions. (0.5)
4
b) Standard error of difference in proportions. (0.5)
c) Compute a 95% confidence interval of difference in proportions
An office heater puts out 2090 Btu
(British thermal units) of energy in the form of heat per hour. Given that 1 Btu=1.055 kJ,
how many megajoules of energy in the form of heat can be produced per year (365 days) by the heater, assuming continuous operation?
energy produced:
Which statement about nitrogen is FALSE?
- Plants are the only organisms that need nitrogen
- Nitrogen gas is abundant in our atmosphere
- Some bacteria can convert nitrogen gas to usable nitrogen
- Plants need nitrogen to make proteins
When animals die and their bodies are not fully decomposed, they…
- turn into fossil fuels
- turn into water
- turn into soil
- evaporate
Nitrogen Fixation:
- The process by which nitrogen in the atmosphere is changed into a form that can be used by plants
- The large source of carbon-based compounds found within natural and engineered, terrestrial and aquatic environments
- Life
- The movement of nitrogen through living and nonliving things
Which statement explains the most realistic way to model energy flow in an ecosystem?
- A food chain is most realistic because many organisms eat one type of food, and energy moves through a single pathway
- A food chain is most realistic because many organisms eat a variety of foods, and energy moves through different pathways
- A food web is most realistic because many organisms eat one type of food, and energy moves through a single pathway
- A food web is most realistic because many organisms eat a variety of foods, and energy moves through different pathways
#339914 on Dec 2023