# Determine the length and breadth of a rectangle if the length is 3cm less than twice the breadth, and the perimeter is 18

40,002 questions, page 296
1. ## calculus

determine whether the series converges of diverges the sum from k=2 to infinity of (the square root of (ln(k)))/k I said that because you can't integrate the series (goes to infinity) it diverges is this true?

asked by sarah on February 26, 2008
2. ## 5th math

Jackie ran 4 Miles in 28.5 minutes Which equation could be used to determine the average number of minutes it took jackie to run Each mile(k)? k-4=28.5 or k+3=28.5 or k/3=28.5 or 4k=28.5 can you tell me which one is the right equation?

asked by pat on January 26, 2011
3. ## Math

Determine the number of combinations on a bicycle lock that has a 3-digit number combination with only 3 numbers where the numbers can be repeated to open the lock

asked by Pedro on September 8, 2016
4. ## Precalculus

find any intercepts of the graph of the given equation. determine whether the graph of the equation possesses symmetry with respect to the x-axis, y-axis, or orgin y=x^2-2x-2

asked by Jason on August 25, 2011
5. ## physics

a block off wood (density = 0.5 g/cm^3) is floating in oil (density = 0.75 g/cm^3). The mass of the wood is 1500 g. Determine the volume of the oil displaced

asked by steph on December 2, 2011
6. ## Calculus

1. Prove that, among all rectangles with fixed perimeter p, where p > 0, the largest in area is a square. 2. A 2 × 3 array of six congruent rectangular pigpens (that all look the same from above) will be in the overall shape of a rectangle R. We may use

asked by Andy on March 27, 2015
7. ## Art

Engineering Empires 1) Which statement best describes the differences between architectural developments in Russian and Inca culture? :Russian architecture used few expensive materials; Inca architecture used plenty of gold. :Russian architecture was built

asked by TheLOUDEST_0430 on March 4, 2015
8. ## Calculus

Posted by MG on Wednesday, March 26, 2014 at 6:54pm. The hands of a clock in some tower are 4.5m and 2m in length. How fast is the distance between the tips of the hands changing at 9:00? (Hint: Use the law of cosines) The distance between the tips of the

asked by MG on March 27, 2014
9. ## Chemistry

When 1.5173g of an a organic iron compound contains Fe,C,HH and O was burned in oxygen 2.838g CO2 and 0.8122g H2O wereproduce.in a separate experiment to determine mass % of iron, 0.3355g of the compound yield 0.0758g Fe2O3.What are the empirical formula

asked by Mkubwa Ali Ismail on November 21, 2018

A marketing class is engaged in a project to estimate the proportion of homes receiving both HBO and Showtime cable service. The class plans to use a confidence coefficient of 0.95 and a maximum error of the estimate equal to 0.10. Determine the sample

asked by Leo Elvis on March 16, 2015
11. ## Math

A designer is designing a cylindrical punching bag. He wants to use a maximum of 1.3m^2 of material. He has determined that the diameter of bag should be 36cm. Determine the maximum possible height of the bag to nearest tenth if a centimeter. Please help

asked by Cherie on September 18, 2014
12. ## physics

A satellite moves in a circular orbit around the Earth at a speed of 6.1 km/s. Determine the satellite’s altitude above the surface of the Earth. Assume the Earth is a homogeneous sphere of radius 6370 km and mass 5.98 × 10 24 kg. The value of the

asked by tanya on December 10, 2011
13. ## physics

A 2.0kg bag is held by a string to the ceiling as shown in the diagram below. A 10-g bullet travelling at 200m/s strikes the stationary bag. The height of the bad after the collision is 10cm. Assuming there is no friction, determine the speed, in metres

14. ## Physics

A metal sphere is found floating in a pool. The sphere is 1m in diameter. If it is half submerged determine the weight of the sphere. You may assume the following: g=10N/kg density of Water = 1000kg/m^3 Vsphere = 4/3pir^3 I get 13.3 as my final answer, but

asked by George on October 5, 2013
15. ## visual

I need some explanation about fonts and how to use them. Need to complete an assignement requesting that fonts are used for shpwing contrast in 7 dimensions. My problem is that I don't know how to determine the size of the letters by using a formula. I

asked by Lillian on October 7, 2008
16. ## calculus

I have a couple of questions that I'm not sure how to do! 1) Given f(x) = (x^2 - 2x + 1) for x does not equal 1 and (k) for x = 1 Determine the value of k for which f is continuous for all real x. a) 0 b) 1 c)2 d)3 e)none of the above i think the anser is

asked by allison on September 24, 2009
17. ## mechanical science

11. In an accident a freeway sports car made skid marks 200 m long along the pavement. The police estimated the braking acceleration of the car to be – 0.8g under the road conditions prevailing. Determine the speed of the sports car when the brakes were

asked by anshuman kumar on December 20, 2012
18. ## Physic

A 61-kg skier, coasting down a hill that is an angle of 23 to the horizontal, experiences a force of kinetic friction of magnitude 72N. The skier's speed is 3.5m/s near the top of the slope. Determine the speed after the skier has travelled 62m downhill.

asked by Tristan on August 14, 2013
19. ## physics

so i created a graph Fe(N) vs. 1/r^2,so electric force vs the inverse squared of the radius.My slope was 9.21E-28, which was right. But what does the slope represent and how would I answer this question? a. Based on the slope of the line you created,

asked by jon snow on November 29, 2016
20. ## Physics

A 17 g rifle bullet traveling 220 m/s buries itself in a 3.9 kg pendulum hanging on a 3.0 m long string, which makes the pendulum swing upward in an arc. Determine the vertical and horizontal components of the pendulum's displacement. Horizantal ____ J

asked by anon on June 6, 2011
21. ## Chemistry

A galvanic cell is constructed with a silver-silver chloride electrode, and a nickel strip immersed in a beaker containing 7.44 x 10-2 M solution of NiCl2. Determine the balanced cell reaction and calculate the potential of the cell. Enter in volts.

asked by Kayla on May 2, 2012
22. ## chemistry

The pH or acidity of liquid is measured in pH, where pH is given by the equation pH=- log C, with C being the concentration of [H+] in multiples of M=1mol/L. Suppose you are given a solution of hydrochloric acid with a pH of 1.7 and asked to increase the

asked by Sara on March 30, 2017
23. ## PHYS 400

A hockey puck on a frozen pond is given an initial speed of 11 m/s. If the puck always remains on the ice and slides 73 m before coming to rest, determine the coefficient of kinetic friction between the puck and ice. Use g equals 9.8 space bevelled m over

asked by odee on May 8, 2016
24. ## math

The pH or acidity of liquid is measured in pH, where pH is given by the equation pH=- log C, with C being the concentration of [H+] in multiples of M=1mol/L. Suppose you are given a solution of hydrochloric acid with a pH of 1.7 and asked to increase the

asked by Sara on March 30, 2017
25. ## Chemistry

I am unsure exactly how to set up this calculation. From a graph that we got from getting different absorbances we took those points we got and got a equation for the best fit line. The equation was y = 760.8x + .02014 and the unknown absorbance equalled

asked by eliz on April 5, 2009
26. ## Physics

A motorcycle rider plans to make a jump off a ramp. If he leaves the ramp with a speed of 38.0m/s and has a speed of 36.3m/s at the top of his trajectory, determine his max height above the end of the ramp. Ignore friction and air resistance. i got 6.45m

asked by Christine on October 25, 2015
27. ## Physics

A satellite moves in a circular orbit around the Earth at a speed of 5.4 km/s. Determine the satellite’s altitude above the surface of the Earth. Assume the Earth is a homogeneous sphere of radius 6370 km and mass 5.98 × 10 24 kg. The value of the

asked by Emily on January 13, 2013
28. ## Chemistry

In this investigation, you will study the reaction between lead(II) nitrate, Pb(NO3)2, and potassium iodide, KI, to determine the percentage yield of lead(II) iodide. This reaction occurs based on the following equation: This image shows Pb(NO sub 3 ) sub

29. ## Math

Write a ratio for the situation in three ways, comparing the first quantity to the second quantity. A zoo has 19 monkeys and 10 chimpanzees. 19 to 10, 19:10, (This) 10 to 29, 10:29, 19 to 29, 19:29, 10 to 19, 10:19, Write three ratios equal to 5/40. 2/14,

asked by A on January 10, 2013
30. ## Fluid Mechanics HELPPPPP!!!!!

Hi, I have a deadLine untill Thursday to find out the solutions to the following Questions. Can Anyone Help me??? please?? 1) A cylinder with Relative Density=0.5 and height=10m is holding vertical with the bottom base touching the surface of water. If we

asked by Mb on August 29, 2005
31. ## Physics

In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.0854 s, during which time it experiences an acceleration of 217 m/s2. The ball is launched at an angle of 58.3° above the ground. Determine the (a)

asked by Annie on September 9, 2015
32. ## ap chem

NH3 + H20 NH4+ + OH- this is aqueous solution. In 0.0180 M nH3, THE [OH-] is 5.60 X 10^-4 M. it is assumed that the volumes are additive. Determine the value of the base ionization constant, kb, for NH3. i am not sure how to approach this problem. i don't

asked by rav on May 2, 2010

Hey I have an exam tomorrow and I cant understand this things.. Help me please .. 1: Derivative using the limit concept 2: Determine a Derivative using the theorems. 3:Evaluate velocity at the beginning and at the end 4: Using implicit derivation and find

asked by Sidse on October 7, 2008
34. ## Physics 103

How do I start? Problem: A helium nucleus (m= 6.65 x 10^-27 kg and q = 2e)is initially at rest. It is accelerated through a potential difference delta V and then enters a region with a constant magnetic field of strength B= 4T. It enter perpendicular to

asked by Kate on March 2, 2010
35. ## chem lab

0.8100g MgO(s)(40.3g/mol) was reacted with 52.3 ml 1.00M HCl(density= 1.00g/ml) in the coffee cup calorimeter, and the observed temperature change was +10.4 degree Celsius. write the equation for this reaction, determine the limiting reactant and find

asked by mann on February 12, 2014
36. ## Math(statisc)

Select a variable (mean, proportion, variance or standard deviation) of interest to you and collect data consisting of at least 30 values. Define the variable. Define the population. Describe how the sample was selected. Use Microsoft Excel (and MegaStat

asked by ibrahim on April 3, 2011
37. ## physics

In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.050 s, during which time it experiences an acceleration of 360 m/s2. The ball is launched at an angle of 46° above the ground. Determine the

asked by demi on September 5, 2010
38. ## Physics

In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.0475 s, during which time it experiences an acceleration of 417 m/s2. The ball is launched at an angle of 59.7° above the ground. Determine the (a)

asked by Justin on June 18, 2013
39. ## Chem

The hydrolysis of sucrose into glucose and fructose in acidic water has a rate constant of at 25 degrees C. Assuming the reaction is first order in sucrose, determine the mass of sucrose that is hydrolyzed when 2.60 L of a 0.150 M sucrose solution is

asked by Katherine on February 28, 2010
40. ## physics

In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.0442 s, during which time it experiences an acceleration of 231 m/s2. The ball is launched at an angle of 55.0° above the ground. Determine the (a)

asked by need help on December 14, 2014
41. ## Finance

The Garcia company's bond have a face value of 1000, will mature in 10 years and carry a coupon rate of 16 percent. Assume interest payments are made semi annually. Determine the present value of the bonds cash flow if the required rate of return is 16.64

asked by Anonymous on November 12, 2012
42. ## Finance

The Garcia company's bond have a face value of 1000, will mature in 10 years and carry a coupon rate of 16 percent. Assume interest payments are made semi annually. Determine the present value of the bonds cash flow if the required rate of return is 16.64

asked by Anonymous on November 12, 2012
43. ## Physics

In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.050 s, during which time it experiences an acceleration of 390 m/s2. The ball is launched at an angle of 46° above the ground. Determine the

asked by Dee on January 30, 2013
44. ## PHYSICS

In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.050 s, during which time it experiences an acceleration of 340 m/s2. The ball is launched at an angle of 51° above the ground. Determine the

asked by veronica on September 15, 2010
45. ## Chemistry

The equation of a simulated photosynthesis reaction is represented by 6CO2(g) + 6H2O (g) -> C6H12O6(s) + 6O2(g) At 31 degree celcius, tje following equilibrium concentration were found [H2O] = 7.91X10^-2M [CO2]= 9.30X10^-1M [O2]= 2.40X10^-3M Determine the

asked by Lee on October 26, 2018
46. ## Physics (Wave Force)

An archer must exert a force of 445 N on the bowstring shown in Figure (a) such that the string makes an angle of è = 34.0° with the vertical. (a) Determine the tension in the bowstring. _____________________________________ My answer was 420.525, but it

asked by Anonymous on January 27, 2012
47. ## physics

In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.0771 s, during which time it experiences an acceleration of 162 m/s2. The ball is launched at an angle of 53.3° above the ground. Determine the (a)

asked by louis aaaa on June 23, 2013
48. ## math

Suppose that an accounting firm does a study to determine the time needed to complete one person's tax forms. It randomly surveys 100 people. The sample average is 23.8 hours. There is a known population standard deviation of 6.0 hours. The population

asked by mayra on November 19, 2011
49. ## Statistics

Each year, thousands of college seniors take the Graduate Record Examination (GRE). Assume the scores are transformed so they have a mean of 600 and a standard deviation of 150. Furthermore, the scores are known to be normally distributed. Determine the

asked by Emily on October 8, 2011
50. ## Maths need help trigonomentery

Two circular flower beds have a combined area of (29¥)/2m^2. The sum of the circumferences of the flower beds is 10¥m. Determine the radius of each bed........ Happy new year to all mrs sue steve,reiny,damon...and to all my jishka helper i need help plz

asked by Collins on December 31, 2015
51. ## chemistry

A 100.0 mL sample of 0.300 M Ca(OH)2 is mixed with 100.0 mL of 0.700 M H3PO4 in a coffee cup calorimeter.If both solutions were initially at 35.0 °C and the resulting solution had a temperature that was recorded at 39. 7°C, determine the ΔHrxn in units

asked by jenna on April 25, 2016
52. ## Finance

Determine the value of a share of DuPont Series A \$4.50 cumulative preferred stock, no par, to an investor who requies a 9 percent rate of return on this security. The issue is callable at \$120 per share plus accrued dividens. However, the issue is not

asked by Sandy on January 10, 2011
53. ## physics

A mesquito whistles a note of 300 Hz, and flies towards you at a speed of 30 m/s. The air temprature is 20 degrees celcius. Before doing any calculations, determine wether you will observe a note that is greater, less than, or equal to 300 Hz (I have

asked by Taylor on February 27, 2011
54. ## Physics

a 10m long steel cable is lifting a 30 ton crate upward off a ship. If the cable streches by .5cm under these conditions, determine the radius of the steel cable. Young's modulus of steel :2x10raised to 9 Pa

asked by Chelie on December 3, 2014
55. ## physics

A water slide can be thought of as being frictionless. Let's say a slider starts from rest and goes down a slide that is 30 m long and is set at a 25 degree incline. a) Determine the speed of the slider at the bottom of the slide. b) Explain why you don't

asked by caroline on October 26, 2010
56. ## Calculus

I need some help with this Calculus problem. A bacteria population starts with 500 bacteria and grows at a rate of r(t) = 548e^6.5t bacteria per hour. A. Determine the function P(t) which gives the population at time t. C. How long does it take the initial

asked by James on December 12, 2017
57. ## Math/ Statistics

A consumer advocacy group claims that the mean amount of juice in a 16 ounce bottled drink is not 16 ounces, as stated by the bottler. Determine the null and alternative hypotheses for the test described. A. H0: µ = 16 ounces Ha: µ < 16 ounces B. H0: µ

asked by breeamberr on December 30, 2014
58. ## Mathematics

Images on a computer can be stored many ways to account for quality and space issues. One of the factors we can adjust is colour depth. Colour depth determines the number of bits we use for each pixel of an image. The pixels are the small dots that make up

asked by Tanveer on October 11, 2011
59. ## algebra

y= (the square root of 8) + x determine whether the following are square root functions. explain

asked by don't trip on April 17, 2014
60. ## Math

Determine the area of the region bounded by f(x)=7*e^(2x) and the -axis, between x=0 and x=2 . what is The area of the region ??

asked by LI on December 11, 2011
61. ## chemistry

Starting with a 2.0 M NaOH solution, determine how you would prepare 1 L of a 0.1 M NaOH solution.

asked by Will on June 27, 2011
62. ## math

use the remainder theorem an the factor theorem to determine whether (y-3) is a factor of (y4+2y2-4).

asked by Malcolm on August 30, 2009
63. ## trig

suppose sin(x)=5/6, and x is in the first quadrant. Determine cos(x), sin(2x), and cos(2x).

asked by jj reddick on October 24, 2010
64. ## math

Shalina uses the expression 3x to determine the cost of x notebooks. What is the cost of 24 notebooks?

asked by justin on August 23, 2016
65. ## Physics 2

α of gold is 14.3x10^-6/C°. The density of gold is 19.3 g/cm^3 at 20℃. Determine its density at 140℃.

asked by Alexa on March 25, 2017
66. ## algebra

find 10-7 divided by 10-7 to determine how much more intense earthquake A was than earthquake B 10-7 DIVIDED BY 10-3

asked by ron on January 5, 2011
67. ## Math

Determine whether the system is consistent, inconsistent, or dependent. 2x + 2y = 2 6x + 6y = 6 or consistent and dependent

asked by CC on June 7, 2011
68. ## statistics

Determine the critical value of t in the following circumstance: 1-alpha=0.99, n=10 t9 = 2.2498 t9 = 3.2498 t9 = 1.2498 t9 = 4.2498

asked by Anonymous on January 10, 2012
69. ## Algebra

Determine whether the given numbers are solutions of the inequality. y-8>2y-3 4, -11, -19, -1 (are any of these numbers a solution to the inequality?)

asked by Ann on June 9, 2011
70. ## Chemistry

Why is AlCl3 an Arrhenius Acid, while BCl3 is not? How can I determine which is an Arrhenius Acid?

asked by Jematormal91 on April 12, 2012
71. ## science

how would you determine the relative density of kerosene using a relative density bottle

asked by samuel on January 11, 2019
72. ## Chem

How do you determine if a bond is non-polar covalent or polar covalent or ionic?

asked by Sam on January 28, 2010
73. ## graphing

Determine whether the graphs of the two lines are parallel. y+3=3x 6x-y=-3 Are the graphs of the given equations parallel?

asked by Shawn on April 20, 2008
74. ## Physics 101

A 25 kg box rests on an inclined plane which is 30o to the horizontal. The coefficient of sliding friction between the box and the plane is 0.30. Determine the acceleration of the box down the plane. (9.8 m/s2)

asked by Roman on April 2, 2015
75. ## Physics

When a small object is launched from the surface of a fictitious planet with a speed of 52.0 m/s, its final speed when it is very far away from the planet is 32.0 m/s. Use this information to determine the escape speed of the planet.

asked by Ying on April 1, 2014
76. ## Physics

What is the maximum equipment needed to determine the power dissipated in a resistor of unknown value? 1) a voltmeter, only 2) An ammeter only, 3) a voltmeter and an ammeter only 4) a voltmeter, an ammeter, and a stopwatch

asked by Thomas on March 12, 2012
77. ## Chemistry

Calulate the degree of ionization for NH3(aq) in 1.0 M solution, Kb = 3.236E-4. I've seen degree ionization for acids and not bases. Do I need to find the Ka [H+] value of the base to determine the degree of ionization?

asked by Rosi on March 7, 2012
78. ## Physics

An airplane flying horizontally 1000 meters above the ground at 200 km per hr drops a bomb on a target on the ground. Determine the acute angle between the vertical and the line joning the airplaod and target at the instant when the bomb is released.

asked by Angel on January 26, 2016
79. ## Science

water is flowing through a horizontal pipe of varying cross section at any two places the diameters of the tube are 4cm and 2cm if the pressure difference between these two places be equal to 4.5cm then determine the rate of flow of water in the tube

asked by Tanya on September 10, 2016
80. ## Social Studies

Why was the presidency of george washington important? A. His actions would define the role of the Supreme Court B. His actions would set precedents for all future presidents C. His actions would determine the need for a president D. His actions would test

asked by Kat From Connections on November 8, 2017
81. ## Physics

36.​A 50.0-kg block and 100-kg block are connected by a string. The pulley is frictionless and of negligible mass. The coefficient of kinetic friction between the 50-kg block and incline is 0.250. Determine the change in the kinetic energy of the 50-kg

asked by Noor on April 15, 2013
82. ## Chemistry

A volume of 5oo ml of potassium sodium tartrate solution S1 of c1=0.21mol/l is to prepared. Determine the mass of hydrated potassium sodium tartrate of formula KNaC4H4O6.4H2O needed for this preparation .(molar atomic masses : H=1;C=12;O=16;Na=23;K=39)

asked by Roro on February 22, 2014
83. ## Calculus

Consider f(x)=x^2/(x^2+a), a>0. Determine the effect on the graph of f if a is varied. A. Each y value is multiplied by a B. As a increases, the vertical tangent lines move further from the origin C. The graph of the curve is shifted sqrt(a) units to the

asked by Anonymous on January 11, 2015
84. ## Math 116

The formula R= -0.075t + 3.85 can be used to perdict the world record in the 1500 meter run, t years after 1930. Determine an inequality that identifies the years in which the world record will be less than 3.4 minutes. Soleve for t. t >__? round to the

asked by Melody on October 2, 2009
85. ## Health care Information System, Question 3

From your own Internet research, to find a report card for one or more of your local hospitals. "Using Information" Please respond to the following: Create a very brief scenario (1-2 sentences) in which specific information should be collected. Determine

asked by Anita on October 10, 2012
86. ## physics

A body moving with a uniform acceleration travels distance of 24m and 64m during the first two equal consecutive intervals of time,each of duration 4s.determine the initial velocity and acceleration of the moving body full solved problem

asked by sukh on June 29, 2013
87. ## Physics

The mass of the heavier block is 22 kg and the mass of the lighter blocks is 11 kg and the magnitude of the force of the connecting string on the smaller block is 13 N. Assume: g = 9.8 m/s 2 and the horizontal surface on which the objects slide is

asked by Blake on December 8, 2015
88. ## Operations management - Business

Determine which shipping alternative would be most economical to ship 80 boxes of parts when each box has a price of \$200 and holding costs are 30 percent of price, given this shipping information: overnight, \$300, two-day, \$260, six-day, \$180.

asked by Nora on January 12, 2009
89. ## chemistryy

A photon interacts with a ground state electron in a hydrogen atom and is absorbed. The electron is ejected from the atom and exhibits a de Broglie wavelength of 4.548 x 10^-10m. Determine the frequency (in hz) of the interacting photon. i got

asked by p on January 12, 2013
90. ## Calculus

Determine an upper/lower estimate for the area under the curve f(x) = cos x between x = 0 and x = pi/2 . Show how you arrive at this estimate. This is the question that my teacher wanted us to answer and I'm not sure how to even start the process. Should I

asked by Mia on October 29, 2016
91. ## science

Scientists debate about the use of fossils as a tool to determine records of various events, such as the vanishing of the dinosaurs or the origin of our ancestors.discuss the role of fossils in helping scientists develop accurate records of the geologic

asked by darren on February 14, 2008
92. ## Math

Determine the total amount of interest you will pay over the next 3 months on a credit balance of \$725 if your credit card has an annual interest rate of 18% and you make monthly payments of 10% of the amount due, rounded to the nearest dollar.

asked by Pat on May 7, 2012
93. ## trig

The manufacturer of a propeller for a small aircraft mandates a maximum operating angular velocity of 300 rad/s. Determine whether it is safe to install this propeller whose aircraft whose engine is expected to run at a maximum of 2800 rpm

asked by bob on December 10, 2011

The manufacturer of a propeller for a small aircraft mandates a maximum operating angular velocity of 300 rad/s. Determine whether it is safe to install this propeller on an aircraft whose engine is expected to run at a maximum of 2800 rpm.

asked by - on November 8, 2009
95. ## statistical reasoning

One hundred people are selected at random and tested for colorblindness to determine whether gender and colorblindness are independent. The following counts were observed. Colorblind Not Colorblind Total Male 8 52 60 Female 2 38 40 Total 10 90 100 Find the

asked by Anonymous on April 14, 2017
96. ## Physics

A 0.50-kg mass at the end of a spring vibrates 3.0 times per second with an amplitude of 0.15 m. Determine (a) the velocity when it passes the equilibrium point, (b) the velocity when it is 0.10 m from equilibrium, (c) the total energy of the system, and

asked by Amber on May 28, 2010
97. ## chemistry

When 1g of baked potato is burnt in a calorimeter having a heat capacity of 350 J the temperature rises by 10 degrees celsius. determine the heat content of atypical baked potato having amass of 120g. Give your answer in both Kj Kcal.

asked by jonh on June 5, 2011
98. ## science

a 2,8kg trolley is moving to the right with a speed of 0,45m.s^-1. A 1.9kg brick is dropped from rest and lands on the trolley. the trolley and bRick move together across the horizontal surface. Assume an isolated system. determine the change in momentum

asked by Nomfundo on February 22, 2016
99. ## Social studies

Why was the presidency of george washington considered to be so significant? A. His actions would define the role of the supreme court. B.His actions would set precedents for all future presidents. C.His actions would determine the need for a president.

asked by Hi there, help? on December 14, 2018
100. ## physics

A projectile of mass 1.000 kg is shot straight up with an initial speed of 23.0 m/s. (a) How high would it go if there were no air resistance? i got 26.99, which is correct (b) If the projectile rises to a maximum height of only 17.8 m, determine the

asked by Lola on June 21, 2015