## Question

###### At time t = 0 second, a student release an object from rest atthe top of a tall building. At the time t0, a second object isdropped from the same point. Ignoring the effect of air resistanceon the two objects, what is the ratio for the speeds for the twoobjects to have a vertical separation l=4.0 meter when the delaytime is t0 = 0.78 seconds? a) ratio of speeds is 3 b) ratio ofspeeds is 5 c) ratio of speeds is 7 d) ratio of speeds is 9 e) noneof the above

At time t = 0 second, a student release an object from rest at the top of a tall building. At the time t0, a second object is dropped from the same point. Ignoring the effect of air resistance on the two objects, what is the ratio for the speeds for the two objects to have a vertical separation l=4.0 meter when the delay time is t0 = 0.78 seconds? a) ratio of speeds is 3 b) ratio of speeds is 5 c) ratio of speeds is 7 d) ratio of speeds is 9 e) none of the above

## Answers

#### Similar Solved Questions

5 answers

##### Course ContentsPostlab Glavanic Cells Calculation of Cell PotentialFor the hypothetical reaction:B _ A + B+What is the cell potential given the following standard reduction potentials for the half cells:~A-0.38 VB -0.38Submit Answer Incorrect: Tries 24/99 Previous_TriesThis discussion is closed_

Course Contents Postlab Glavanic Cells Calculation of Cell Potential For the hypothetical reaction: B _ A + B+ What is the cell potential given the following standard reduction potentials for the half cells: ~A-0.38 V B -0.38 Submit Answer Incorrect: Tries 24/99 Previous_Tries This discussion is clo...

5 answers

##### PrevUpNextpt) Find the volume of the solid obtained by rotating the region bounded by the given curve about the specified axisx2 + (y - 4)2 =4about the Y-axis_ VolumePreview AnswersSubmit Answers

Prev Up Next pt) Find the volume of the solid obtained by rotating the region bounded by the given curve about the specified axis x2 + (y - 4)2 =4 about the Y-axis_ Volume Preview Answers Submit Answers...

2 answers

##### I-X x? +Y &x &4Leaen1-x-Y {Sg*s' 2 &2 da dx

I-X x? +Y &x &4 Leaen 1-x-Y {Sg*s' 2 &2 da dx...

5 answers

##### Point) Estimate2Vx dx using midpoints for n = 5 approximating rectangles.6 2Vx dx is approximately 11,3

point) Estimate 2Vx dx using midpoints for n = 5 approximating rectangles. 6 2Vx dx is approximately 11,3...

5 answers

##### Lps 38 f * -8 Lq %f=V 47T{ 2Y ? 7-(1-78)+xe 3 '9 $"0 V =67/+X ~oprry Lou 5,44- Spy may7 ~6 1077 720 ~4sls % 1 1n 7'7m 1168 -(1-7/8)- X ~-Ki+X 2764 n8 307 714 7457 ~ctn 77 3 In2sRs ~ 9 ~P^ 7mm 24pt-Jv) 4m Ls ::7- Ie Lrr-] - [S T-v 8L6

Lps 38 f * -8 Lq %f=V 47T { 2 Y ? 7-(1-78)+xe 3 '9 $"0 V =67/+X ~oprry Lou 5,44- Spy may7 ~6 1077 720 ~4sls % 1 1n 7'7m 116 8 -(1-7/8)- X ~-Ki+X 2764 n8 307 714 7457 ~ctn 77 3 In2sRs ~ 9 ~P^ 7mm 2 4pt-Jv) 4m Ls ::7- Ie Lrr-] - [S T-v 8L6...

4 answers

##### Points) (Without Python) Show that we have(xE"-)- j:n â‚¬ NJ

points) (Without Python) Show that we have (xE"-)- j:n â‚¬ NJ...

5 answers

##### 23. Predict the product for the following reactionAIChA)B)D)24 Predict the product for the following reaction_HzSO4HO-OHOHOHA)B)D)

23. Predict the product for the following reaction AICh A) B) D) 24 Predict the product for the following reaction_ HzSO4 HO- OH OH OH A) B) D)...

5 answers

##### What is the conjugate base in the following reaction?NaF + H20 <~> HF + NaOHSelect one:a. There is no conjugate base in this reactionb. HzOc. HFd. NaF0 e. NaOH

What is the conjugate base in the following reaction? NaF + H20 <~> HF + NaOH Select one: a. There is no conjugate base in this reaction b. HzO c. HF d. NaF 0 e. NaOH...

5 answers

##### Find the indefinite integral and check the result by differentiation.$$intleft[x^{2}+frac{1}{(3 x)^{2}}ight] d x$$

Find the indefinite integral and check the result by differentiation. $$ intleft[x^{2}+frac{1}{(3 x)^{2}} ight] d x $$...

5 answers

##### The paper "Overweight Among Low-Income Preschool Children Associated with the Consumption of Sweet Drinks" (Pediatrics [2005]: 223-229) described a study of children who were underweight or normal weight at age 2. Children in the sample were classified according to the number of sweet drinks consumed per day and whether or not the child was overweight one year after the study began. Is there evidence of an association between whether or not children are overweight after one year and th

The paper "Overweight Among Low-Income Preschool Children Associated with the Consumption of Sweet Drinks" (Pediatrics [2005]: 223-229) described a study of children who were underweight or normal weight at age 2. Children in the sample were classified according to the number of sweet drin...

5 answers

##### Question 8Compute: 1001012 1110120 1010 Base 20 1000 Base 2D 100 Basc 20 1100 Basc 2

Question 8 Compute: 1001012 111012 0 1010 Base 2 0 1000 Base 2 D 100 Basc 2 0 1100 Basc 2...

1 answers

##### The pseudofirst-order rate constant for the decomposition of urea, $\mathrm{CO}\left(\mathrm{NH}_{2}\right)(\mathrm{aq})+2 \mathrm{H}_{2} \mathrm{O}(\mathrm{l}) \rightarrow 2 \mathrm{NH}_{4}^{+}(\mathrm{aq})+\mathrm{CO}_{3}^{2-}(\mathrm{aq})$ is $1.2 \times 10^{-7} \mathrm{s}^{-1}$ at $60^{\circ} \mathrm{C}$ and $4.6 \times 10^{-7} \mathrm{s}^{-1}$ at $70^{\circ} \mathrm{C}$. Estimate (a) the activation Gibbs energy and (b) the entropy of activation of the reaction.

The pseudofirst-order rate constant for the decomposition of urea, $\mathrm{CO}\left(\mathrm{NH}_{2}\right)(\mathrm{aq})+2 \mathrm{H}_{2} \mathrm{O}(\mathrm{l}) \rightarrow 2 \mathrm{NH}_{4}^{+}(\mathrm{aq})+\mathrm{CO}_{3}^{2-}(\mathrm{aq})$ is $1.2 \times 10^{-7} \mathrm{s}^{-1}$ at $60^{\circ} \m...

5 answers

##### 1 1 1 F Uing #urituon mmkl Usa1of sumnmalion given Andonine indot 1

1 1 1 F Uing #urituon mmkl Usa 1 of sumnmalion given Andonine indot 1...

5 answers

##### 1. The life of a particular brand of television picture tube isknown to be normally dis- tributed with a standard deviation of 400hours. Suppose that a random sample of 50 tubes resulted in anaverage lifetime of 9000 hours. Obtain a 90 percent confidenceinterval estimate of the mean lifetime of such a tube.

1. The life of a particular brand of television picture tube is known to be normally dis- tributed with a standard deviation of 400 hours. Suppose that a random sample of 50 tubes resulted in an average lifetime of 9000 hours. Obtain a 90 percent confidence interval estimate of the mean lifetime of ...

1 answers

##### Home worki solve only 17, 20, 23 and 26In Problems 17-28 find two power series solutions of the given differential equation about the ordinary point X = 0.17. "" -xy=0 18. y" +rly = 0 19. y" _ Zxy' +y = 0 20. y"-ry' + 2y = 0 21. ""+ry +xy = 0 22. y" + Zxy' + 2y = 0 23. ( - I)y"+y = 0 24. (x + 2)y" +xy' _y = 0 25. "" - 6+ D)y' T>=0 26. (r? + I)y" _ 6y = 0 27. (r? + 2)y" + Jxy' _ y = 0 28. (r? _

Home worki solve only 17, 20, 23 and 26 In Problems 17-28 find two power series solutions of the given differential equation about the ordinary point X = 0. 17. "" -xy=0 18. y" +rly = 0 19. y" _ Zxy' +y = 0 20. y"-ry' + 2y = 0 21. ""+ry +xy = 0 22. y"...

5 answers

##### â¦ Explain the present understanding of molecular adaptations tothe cytoplasmic membrane as found in psychrophiles andthermophiles

â¦ Explain the present understanding of molecular adaptations to the cytoplasmic membrane as found in psychrophiles and thermophiles...

5 answers

##### Line / is tangent at y = e at some point (a,ea in the first quadrant What is the positive value of a for which the this tangent line passes through the origin? Show your work with full justifications for your answer; then type just the numerical value of @ as your answer Do not type any other characters or symbols, no equal sign, no spaces:

Line / is tangent at y = e at some point (a,ea in the first quadrant What is the positive value of a for which the this tangent line passes through the origin? Show your work with full justifications for your answer; then type just the numerical value of @ as your answer Do not type any other charac...

5 answers

##### Find f[g(x)] and g[f(x)]:flx) = 10 +7 , g(x) =6x-5f[g(x)]

Find f[g(x)] and g[f(x)]: flx) = 10 +7 , g(x) =6x-5 f[g(x)]...

5 answers

##### 101.9 102. 8 101.3 00,9714 8 8 8 8 the boiling point of a solution of 25.20 g of KCI dissolved 8water? Kb water 8 oclm

101.9 102. 8 101.3 00,9714 8 8 8 8 the boiling point of a solution of 25.20 g of KCI dissolved 8 water? Kb water 8 oclm...