# precious

Newest questions posted by precious
1. ## Physics

A bomb dropped from a balloon reaches the ground in 30seconds .determine the height of the balloon if it is at rest in the air and if it is ascending with a speed of 100m/sec when the balloon is dropped
2. ## physics

a rope attached to a sledge make an angle of 40% with the ground calculate the tension in rope required to produce a horizontal component of 100N
3. ## maths

a triangle is equal to a rectangle which measures 10cm by9cm. if the base of the triangle is 12cm long,find its altitude
4. ## Math

a woman looking out from a window of a building at a height of 30meters observed that the angle of depression of a flag pole was 44°. if the foot of the pole is 25meters from the foot of the building from the same horizontal, find (a) correct to the
5. ## french

Write a letter to your friend inviting him/her for your birthday party in french
6. ## physics

A faulty Celsius thermometer read 0.7degrees Celsius at melting point of pure ice and 99.5degrees Celsius at boiling point of water at normal pressure. What is the correct temperature when it reads 30 degrees Celsius
7. ## maths

solve the following equations: 3x-4y=-24 x+y=-1
8. ## maths

A person has R200,000 invested, part at 9% and part at 8%. If the total yearly income from the two investments is R17200, how much is invested at 9% and how much at 8%?
9. ## math

In a quiz competition of60 competitors 24drank Cocacola 25 drank fanta while 22 drank maltina. 6 drank cacacola and fanta and 5drank fanta and maltina.if a number of competitors drank the 3types of soft drink and 5did not drink any of them.draw a Venn
10. ## Physics II

1.given 30 m^3 of helium at 15 degree c and 1.0x10^5 Pa, determine the volume at -6 degree c and 5.6x10^4 Pa 2. if a mass of gas occupies 500 l at 16 degree c and 10^5 Pa,determine the volume at 38 degree c and 1.7x10^5 Pa. 3. Calculate the final
11. ## Physics II

find the pressure at the bottom of a vessel 76cm deep when filled with a) water b)mercury (sp.g. 13.6)
12. ## Physics II

find the velocity of escape of water through a small opening in a broiler where the pressure is 10^6 Pa above atmospheric pressure, assumed h1=h2 and v1=0
13. ## Physics II

the velocity of water in a 4 cm diameter pipe is 2.0m/s.what is the velocity in a 2cm diameter pipe which connects with it,both pipes flowing full?
14. ## Physics

Determine the mass of 0.5m^3 of aluminum with relative density of 2.70.
15. ## Math

Karen wanted to find out how much waster was used when taking a bath and when taking a show. Karen found the dimensions of the tub filled with enough water to take a bath was 1.7 meters x 1 meters x 0.46meters and that the shower uses 5075 liters per
16. ## math

the perimeter of a isosceles triangle is 28cm with side 4y=6y-2x+1 and base x+2y in cm, find x and y and state the length of the side of the triangle.
17. ## Geography

The Ratio of boys to girls was 3 to 7. If there were 40 more girls boys in 2016 how many boys were enrolled that year?
18. ## Math

In triangle ABC, measure of angle A is equal to 30 degrees, AC is equal to 4 and AB is equal to 3 square root of 3. Find BC
19. ## Government

1.Define a state &nation.2.10 examples of a states outside Nigeria.
20. ## Government

3 examples of a nation
21. ## Government

1a.Define a state b.a nation 2 .Give 10 example of a state and 3 example of a country.help me out ms sue
22. ## Maths

A.12 multiplied by(8+15)/14. B. 34.87 multiplied by 0.01. ms sue pls help.
23. ## maths

429.07/214 ms sue pls help me out
24. ## Maths

429.07/214. 429.07 multiplied by 100=4290700/214=20050. am i correct

429.07/214
26. ## physic

two sorces of resultant100N are perpendicular to each other.if one of them makes angle60degree with the resultant calculate the magnitude of the force
27. ## physic

two force10n and20n are inclined at an angle 60 degree to each.find the resultant forces are now made to be inclined at120degree to each other,find the magnitude of the new resultant force
28. ## physic

a car travels 3.0km due south and then4.0km west what is lt's displacememt from the starting point
29. ## chemistry

calculate the mass of silver deposited when a current of 3ampere is passed through a solution of a silver salt for 7minutes
30. ## Maths

How many litres of water fills a tank whise internal dimensions are 2.5m by 20m by 1.5m
31. ## RATIO

out of 60 fruits in a bag,45 are mangoes and the rest are oranges. what is the ratio of oranges to mangoes.
32. ## life orientation

Six suggestion on how to combat the violation of human rights identified by you in the previous question and indicate any organization
33. ## life orientation

I want to know about 3human rights violations
34. ## life orientation

Identity human rights violation or discrimination
35. ## english

does African marriage is an advantage for men only not women
36. ## chemistry

Explain using dilution formula how to prepare 0.2M hcl acid from 37% concentrated hcl acid
37. ## chemistry

Explain using the dilution formula how to prepare 0.2M HCL acid from 37% HCL acid
38. ## chemistry

Explain using the dilution formula how to prepare 0.2m HCL acid from 37% HCL acid
39. ## maths,agricultur;life science,business

identify three courses or study fields you are interestedin following after grd12.write them down in order of preference.provide 2 reasons why you find this a suitable course for each choice
40. ## mathematics

Between which two successive intergers do the following irrational numbers lie? A.√167 B.^3√80 which irrational numbera lies between 5and6?
41. ## maths

between which two successive interger do the following irrational numbers lie? A.√167 B.^3√80
42. ## further maths

the first 3 terms of an AP are x, 2x+1 and 5x-1. find x and the sum of the first 10 terms
43. ## Chemistry

What Mass Of Copper(i)oxide Is Formed By Burning 10.5g Of Copper(i)sulfide
44. ## history geography business maths literacy

what career or jobs can I get if I've got this subject
45. ## Math

Find the gradient of line AB joining the following pair of point (2,1) and (4,2)
46. ## chemistry

In the industrial preparation of HNO3, NH3 is burnt in O2 in the presence of a catalyst, according to the following equation; 4NH3 + 502 - 4NO +6HO If 260ccm3 of NH3 is burnt completely. what volume of O2 is used up and NO is produced
47. ## Reitumetse high school

Life sciences what is the difference between grassland/forest biomes.
48. ## maths

Two places on the same meridian have latitudes 10 degree south and 53 degree north. What is their distance apart measured along the meridian?(radius of the earth R=6400km,pi=22/7)
49. ## Math

520 square yards approximate each side of the garden by the nearest tenth I was thinking I had to divide each side by 9
50. ## Fundulwazi(mathematical literacy, CAT, Economics and Accounting )

what career can i follow with these subjects? (Mathematical Literary, Economics, Accounting and CAT)
51. ## mugwazeni

IAm doing grade 10 and my subject are;history ,geography and economics so I want to know what kind of work am I going to work
52. ## unique national comprehensive college

Physics: an elastic cord can be stretched to its elastic limit by a load of 2N.if a 35cm length of the cord is extended 0.6cm by force of 0.5N,what will be the length of the cord when the stretching force is 2.5N?
53. ## chemistry

what mass of zinc dissolved in dilute HCL will produce 0.15g of hydrogen ? can you explain the steps to sloving this question please
54. ## life orientation

show the link between intrapersonal conflict and intiating relationship
55. ## chemistry

What is brownian motionand example
56. ## Chemistry

1. What happens if our calorimeter is not properly insulated..what effect will it have on our calculated specific heat capacity I.e too large, too small or no effect....explain. 2. If our partner forgot to cover the coffee cup calorimeter while the
57. ## scientist

I need 10 example objects that use energy in my house... What are they? Also can you help me?!!!!!!
58. ## Science Physics

On the surface of the Moon an astronaut has a weight of Fg = 120 N. The radius of the Moon is Rm = 1.74 x 106 m, the gravitational constant is G = 6.67 x 10-11 N m2kg2 and the mass of the Moon is Mm = 7.35 x 1022 kg. Solve numerically for the mass of the
59. ## Industrial Psychological Research

what is the proportion of students with a raw score less than 10? if information was collected from fellow students the rating on a 5 point scale on 5 different questions. given a normally distributed population with a mean of 13, a standard deviation of
60. ## chemistry

write half reaction for KMnO4 and (COMM)2 and balance the equation.calculate the atomic mass of M in14.0g/dm3 of solution
61. ## Physics

A box is sliding down a frictionless plane inclined at an angle of 30° width the horizontal. What is the acceleration of the box?
62. ## Edward Phatudi

Am doing physical science.life science.geography and maths lit i want to know which career can i do
63. ## Chemistry

How would you prepare pure dry crystals of pottasium trioxonitrate (v) ?.
64. ## physics

a flying bat emits squeaks of frequency 80 kHz.if a stationary observer hears the frequency of the squeaks as 78kHz,is the bat moving towards or away from the observer?determine the speed at which the bat is flying.
65. ## speech

traditional african marriage is an advantage for men only not women?
66. ## speech

traditional african marriage is an advantage for men only not women,?
67. ## Physical sciences

A factory siren emits a sound at 900hz.what frequency will be heard by the driver of a car traveling at 100km.h away from the factory?
68. ## home econs

what are the factors to consider when making a stitch
69. ## Science

A force of 650N is acting upwards and a force of 850N is acting downwards along the same line,state the magnitude and direction of the resultant force and the equilibrant force
70. ## life orientation

identify and dercribe 3 environmental health hazards that cause ill health,crises,and or disasters within ur community or any other community within s.a and globally.include evidence that is current of the identified issues(e.g graphs and statistics)
71. ## TRIG Help help help test tommarow

A TV tower stands on top of the Empire State building. From a point (on the ground) 1150 feet from the base of the building, the angle of elevation to the top of the TV tower is 52 degrees. If the building is 1250 feet tall, what is the length of the TV
72. ## Heat energy

CORRECTION (a). 500g of copper is heated from 30 degree celcius to 120 degree celcius, what is the quantity of heat supplied?(b). If the same quantity of heat is supplied to 300g of water initial at 30 degree celcius. What will be the final temperature.
73. ## Heat Energy

A container holds 3kg of water at 25 degree celcius. If 0.5kg of iron at 80 degree celcius is added to the water in the contain. What is the? (i) final temperature of the container. (ii) Quantity of heat gained by water
74. ## Heat Energy

1. (a) 500g of copper is heated from 30 degree celcius - 120 degree celcius?. (b) if the same quantity of heat is supplied to 300g of water initial at 30 degree celcius,what will be the final temperature.
75. ## Mechanics _ physics

A uniform bar 1m long is pivoted at the centre has a mass of 3kg. It is acted upon by a conquer which cause to possess an angular acceleration of 6rad/sec^2; calculate a. The moment of inertia of the bar b. The torque on the bar
76. ## Mechanics _ physics

A wheel rotating with an angular velocity of 16rad/sec is slowed to an angular velocity of 4rad/sec by an angular acceleration of 2rad/sec^2.find a. The angle turned in the process of slowing down b. The time required
77. ## Mechanics

Find the moment L about a perpendicular axis through the rod at a distance L/3 from the centre of mass.
78. ## Mechanics

Find the moment L about a perpendicular axis through the rod at a distance L/3 from the centre of mass.
79. ## Mechanics

An areoplane propeller has a 100kg and radius of gyration of 0.6cm.find its moment of inertia.how large a torque is required to give it angular acceleration of 20rad/sec^2
80. ## Mechanics

An aeroplane propeller has a 100kg and radius of gyration of 0.6cm.find its moment of inertia.How large a torque is required to give it angular acceleration of 20rad/sec^2
81. ## Mechanics

An aeroplane propeller has a 100kg and radius of gyration of 0.6cm.find its moment of inertia.How large a torque is required to give it angular acceleration of 20rad/sec^2
82. ## Mechanics

An aeroplane propeller has a 100kg and radius of gyration of 0.6cm.find its moment of inertia.How large a torque is required to give it angular acceleration of 20rad/sec^2
83. ## Mechanics

What is Viscosity
84. ## Mechanics

What is Viscosity
85. ## Mechanics

What is Viscosity
86. ## Mechanics_physics

An argon atom has a mass of 6.64 x 10kg has 5.5 x 108J of kinetic energy. At what velocity is it moving.?
87. ## physics

if a car moving 180km/h reduces to 72km, what is the percentage change in kinetic energy?
88. ## mechanics- physics

An electron moving at a speed of 5 x 10 raise to power 6m/s was shot through a sheet of paper which is 2.1 x 10 raise to power 4cm thick. The electron emerges from the paper with a speed of 2 x 10 raise to power 6 m/s. Find the time taken by the electron
89. ## mechanics- physics

An electron moving at a speed of 5 x 10 raise to power 6m/s was shot through a sheet of paper which is 2.1 x 10 raise to power 4cm thick. The electron emerges from the paper with a speed of 2 x 10 raise to power 6 m/s. Find the time taken by the electron
90. ## mechanics- physics

An electron moving at a speed of 5 x 10 raise to power 6m/s was shot through a sheet of paper which is 2.1 x 10 raise to power 4cm thick. The electron emerges from the paper with a speed of 2 x 10 raise to power 6 m/s. Find the time taken by the electron
91. ## mechanics- physics

An electron moving at a speed of 5 x 10 raise to power 6m/s was shot through a sheet of paper which is 2.1 x 10 raise to power 4cm thick. The electron emerges from the paper with a speed of 2 x 10 raise to power 6 m/s. Find the time taken by the electron
92. ## mechanics_ physics

1.20kg mass is dropped from a height of 0.9M unto a spring with force constant K= 120N/m and negligible mass. Find the maximum distance the spring will compressed pls show full working and indicate formular.
93. ## mechanics_ physics

1.20kg mass is dropped from a height of 0.9M unto a spring with force constant K= 120N/m and negligible mass. Find the maximum distance the spring will compressed pls show full working and indicate formular.
94. ## mechanics_ physics

A trolley is use in pushing a book 1.20m along a horizontal table top with a horizonta force of 3.0N. The opposing force of friction is 0.6N. 1. How much work does his 3.0N force 2.what is the work done on the book by the friction? The total work done on
95. ## .physics

correction of question. A lorry of mass 1000kg moving initially at 10m/s increases to 25m/s. In 5sec the impluse on the lorry is 15,000Ns; calculate 1. Acceleration 2.The distance covered.
96. ## physics

An argon atom has a mass of 6.64 x 10 kg has 5.5x108 joules of kinetic energy. At What velocity is it moving?
97. ## mechanics-physics

A lorry of mass 1000kg moving initially at 10m/s increases to 25m/s. In 5sec the on the lorry is 15,000Newtons; calculate: (a) Acceleration (b) The distance covered
98. ## mechanics - physics

A bullet of mass 3.0g moving at 500m/s hits a tree and pierced 20cm into the trunk of the tree.what is the resistimg force offered by the tree?
99. ## Mechanics - physics

A car of mass 400kg moving initial at 36km/h increases to 120km/h in 6sec, what is the force acting on the car?
100. ## Mechanics_physics

A soccer player kicked a ball at an angle of 37 degrees to the horizontal.if the range covered by the ball is 240.3m; calculate (a) The initial velocity of projection ? (b) The time of flight (c) The maximum height attained

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