Given the following quantities: Q, W, U, Ek write down which one of the following statements...
Given the following quantities: Q, W, U, Ek
write down which one of the following statements is true:
(A) Q always equals W if U = 0
(B) Ek is always zero or positive
(C) all of the quantities can have a negative value
(D) Q always equals U
(E) only two of the quantities can have a negative value
Homework Answers
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Given the following quantities: Q, W, U, Ek write down which one of the following statements...
What is the answer for these two? (a) Given the following quantities: Q. W. Δυ, ΔΕ...
What is the answer for these
two?
(a) Given the following quantities: Q. W. Δυ, ΔΕ write down which one of the following statements is true: (A) Q always equals W if AU0 (B) ДЕк is always zero or positive (C) all of the quantities can have a negative value (D) Q always equals (E) only two of the quantities can have a negative value (b) If Ep is gravitational potential energy of an object at height ћ, write down...
If Ep is gravitational potential energy of an object at height h, write down which one...
If Ep is gravitational potential energy of an object at height h, write down which one of the following is true: (A) g is always positive (B) Ep is always positive if h increases (C) g is negative for a falling object (D) Ep is always defined as zero at the Earth’s surface (E) g is constant everywhere in the universe
Problem #7: Which of the following statements are always true for vectors in R3? (i) If u (vx w)-...
Problem #7: Which of the following statements are always true for vectors in R3? (i) If u (vx w)-4 then w - (vxu)-4 (ii) (5u + v) x (1-40 =-21 (u x v) (ili) If u is orthogonal to v and w then u is also orthogonal to w | V + V W (A)( only (B) (iii) only (C) none of them (D) (i) and (iii) only (E) all of them (F) (i) only (G)i and (ii) only (H)...
You will be given a list of conditions to test for. Write if-statements that display the...
You will be given a list of conditions to test for. Write if-statements that display the result if the condition is true. For example, if the condition was x is negative or over 5000, a possible answer would be: if( x < 0 || x > 5000 ) System.out.println("x is negative or > 5000."); Conditions to test for: 1. x is closer in value to y than z is. Consider that all 3 numbers can be any combination of...
And explain why ? 14. Which one of the following statements is correct given the following...
And explain why ?
14. Which one of the following statements is correct given the following two sets of project cash flows? Project A S6,000 Project B S2.000 Year 1 Year 2 3.000 Year 3 Year 4 2.500 3,000 2,500 3,000 A. The cash flows for Project B are an annuity, but those of Project A are not. B. Both sets of cash flows have equal present values as of time zero given a positive discount rate. C. The present...
the following process, state whether each of q, w, ∆U, and ∆H is positive, negative, or...
the following process, state whether each of q, w, ∆U, and ∆H is positive, negative, or zero. Explain your answers a) Complete combustion of benzene in a bomb calorimeter
need help with last question: which of the following statements are true? The position (in thousands...
need help with last question: which of the following
statements are true?
The position (in thousands of feet) of a car driving along a straight road at time t in minutes is given by the function y = s(t) that is pictured below. У S 14 10 6 2 2 6 10 Let v(t) denote the velocity of the car (in thousands of feet per minute) at timet (in minutes). Which graph A-F is the best representative of the derivative...
Write down which one of the following statements is false: (A) for a wire of a...
Write down which one of the following statements is false: (A) for a wire of a certain substance and certain cross-sectional area, the spring constant is inversely proportional to natural length (B) Young's modulus is the gradient of stress as a function of strain (C) uids do not have a bulk modulus (D) spring constant is the gradient of load as a function of deformation (E) some substances do not obey Hooke's Law at all
Amanufacturer U supplies to two downstream retailers D and D, at a whole- sale price of w. Both retailers supply a hom...
Amanufacturer U supplies to two downstream retailers D and D, at a whole- sale price of w. Both retailers supply a homogenous product in the down- stream market and compete in quantities, with the final market price being represented by p=1+s-91-92, where 91 and 92 represents the downstream quantities that D, and Dsupply. All other production costs are assumed to be zero for simplicity. In addition, s= e, +e, represents the combined effort that each of D, and D, may...
For each of the following statements, decide whether or not it is true and write down...
For each of the following statements, decide whether or not it
is true and write down a clear and convincing explanation for your
decision. Some of these are harder than others, and one of them is
not known to anyone
(c) There are non-zero integers m and n such that m(e + 7) = n. (Here, it is the number for which cos(TT) = -1, and e is the number such that f(x) = e is its own derivative.)
What is the answer for these
two?
(a) Given the following quantities: Q. W. Δυ, ΔΕ write down which one of the following statements is true: (A) Q always equals W if AU0 (B) ДЕк is always zero or positive (C) all of the quantities can have a negative value (D) Q always equals (E) only two of the quantities can have a negative value (b) If Ep is gravitational potential energy of an object at height ћ, write down...
Problem #7: Which of the following statements are always true for vectors in R3? (i) If u (vx w)-4 then w - (vxu)-4 (ii) (5u + v) x (1-40 =-21 (u x v) (ili) If u is orthogonal to v and w then u is also orthogonal to w | V + V W (A)( only (B) (iii) only (C) none of them (D) (i) and (iii) only (E) all of them (F) (i) only (G)i and (ii) only (H)...
And explain why ?
14. Which one of the following statements is correct given the following two sets of project cash flows? Project A S6,000 Project B S2.000 Year 1 Year 2 3.000 Year 3 Year 4 2.500 3,000 2,500 3,000 A. The cash flows for Project B are an annuity, but those of Project A are not. B. Both sets of cash flows have equal present values as of time zero given a positive discount rate. C. The present...
need help with last question: which of the following
statements are true?
The position (in thousands of feet) of a car driving along a straight road at time t in minutes is given by the function y = s(t) that is pictured below. У S 14 10 6 2 2 6 10 Let v(t) denote the velocity of the car (in thousands of feet per minute) at timet (in minutes). Which graph A-F is the best representative of the derivative...
Amanufacturer U supplies to two downstream retailers D and D, at a whole- sale price of w. Both retailers supply a homogenous product in the down- stream market and compete in quantities, with the final market price being represented by p=1+s-91-92, where 91 and 92 represents the downstream quantities that D, and Dsupply. All other production costs are assumed to be zero for simplicity. In addition, s= e, +e, represents the combined effort that each of D, and D, may...
For each of the following statements, decide whether or not it
is true and write down a clear and convincing explanation for your
decision. Some of these are harder than others, and one of them is
not known to anyone
(c) There are non-zero integers m and n such that m(e + 7) = n. (Here, it is the number for which cos(TT) = -1, and e is the number such that f(x) = e is its own derivative.)
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