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Emmanuel
Questions and answers by visitors named
Emmanuel
Questions (231)
The bearing of a boy on the corridor of a storey building from a ball on the ground is N078ⁿE. What is the bearing of the ball
3 answers
284 views
an athlete of mass 70.0kg runs a 100m race in 10s. calculate the kinetic energy possessed by the athlete.
5 answers
1,652 views
solve a spiral spring has a length of 14cm when a force of 4n is hung on it a force of 6n extends the spring by 4cm calculate
1 answer
26 views
. The three consecutive terms of an
exponential sequence (G.P) are the second, third and sixth terms of a linear sequence (A.P).
4 answers
3,675 views
Two capacitor of a capacitance 4uf and 6uf are connected in series to a 100volt DC
A.draw the circuit diagram B.calculate the
4 answers
1,697 views
The diameter of a circle centre is O is 26cm. If a chord PQ is drawn such that from O to the centre of the
1 answer
17 views
A ladder leans against a vertical wall of height 12m.if the foot of the ladder is 5m away from the wall,calculate the length of
5 answers
3,474 views
1. A force of 40N at the end of a wire of length 4m and diameter 2mm process and extension of 0.24mm. Calculate; (a) stress on
6 answers
3,083 views
Chad buys peanuts in 2-pound bags. He repackages them into bags that hold 5/6 pound of peanuts. How many 2-pound bags of peanuts
26 answers
15,594 views
1.The sound from a bolt of lighting travelled 4.08km in 12.0s. whats was the spped of the sound in metres per second?
0.340m/s
5 answers
3,054 views
A baseball flew 19.6 m straight up into the air after being hit by a bat. How long should it take for the ball to return from
5 answers
2,379 views
A boy went to a supermarket and spends 2/5 of his pocket money on biscuit, 1/4 on plantain chips and the remainder on drinks.
4 answers
643 views
A rectangular tank measure 6m by 4m by 5m is half full of water. What volume of water is in the tank?
6 answers
1,266 views
Out of 200 apples boupht from a frult sellar, it is known from experience that 10 will be unripe what is the probability that
3 answers
326 views
Your boss wants to send a brief email message welcoming employees recently transferred to your department from your Hong Kong
4 answers
1,496 views
1.) The average velocity of Cl(2) molecules is 2.50 x 10^3 m/sec at a temp of 25 C therefore the average velocity of helium
1 answer
577 views
a study of 40 professors showed they spent on average 13.6 minutes correcting a student papers. Given a standard deviation of
2 answers
635 views
A battery of three cells in series each of emf 2v and internal 0.5 ohms is connected to 2ohms resistor in series with a parallel
10 answers
4,181 views
Suppose you plan to save $12 per week.You have already saved $7.50.In how many weeks will you have saved at least $100?
5 answers
589 views
Ground water intially contains 1.800mg/L of iron as Fe3+. What must the pH be raised to in order to precipitat all but 0.30mg/L
2 answers
497 views
How do i determine the mass of ice initially in the calorimeter when dry saturated steam is passed into 250g of a mixture of ice
3 answers
1,435 views
How to solve a three set problem
3 answers
456 views
Write a program, which writes the last two (2) digits of the student ID 1119939 into the 8051 microcontroller’s internal RAM
1 answer
343 views
Write a program that will count down from the last (4) digits of the student ID 1119939 until zero. Once completed, the function
1 answer
337 views
A warehouse having a volume of 10,000 ft3 and a floor area of 1000 ft2 is to be built. The cost
of constructing the floor is
2 answers
487 views
I have trouble with math, I'm very good at science and when I grow up I want to be a zoologist, the problem is that. MATH
I try
2 answers
581 views
A man 6 feet tall is standing 9 feet from a 18 feet tall light pole. His shadow cast 15 degree. What is the angle formed from
2 answers
757 views
Calculate the molarity of a solution containing 58.5mg of NaCl in 2.50mL of solution.
3 answers
400 views
Argument that Roger Sherman uses to convince people to ratify the constitution?
1 answer
423 views
Math Question:
winning time of a marathon is 1 hour, 24 minutes and 11 seconds... How do I find the average speed?
1 answer
406 views
Pt, (H2) 1atm | CH3COOH 0.1 M, CH3COONa 0.15M || NaBr 0.1M, AgBr(S) | Ag
write the cathodic, anodic and final reactions.
2 answers
673 views
Jada, Nicholas, Nita, and Calvin shared $60. Jada received 1/2 of the total amount of money Nicholas, Nita, and Calvin received.
2 answers
1,245 views
Why did Airhead eat the dollar he brought to school
6 answers
1,000 views
For y=2x +3 whenx=4, what does y equal?
1 answer
307 views
Solve for x -2 + 2x = -x + 2 + x
1 answer
271 views
Topic:4th Amendment exception to searches and seizures (Terry v. Ohio) what impact did Terry v. Ohio have on law enforcement
1 answer
428 views
HOW DO YOU SIMPLIFY SURDS WITH CUBED 98 ROOT?
1 answer
363 views
step by step on how to solve this problem 2420/(570+r) = 2140/(570-r)
1 answer
357 views
The position of an object moving in a straight line is given by the function , where s(t) represents distance traveled and t
2 answers
1,265 views
Bladder infections are often caused when the bacteria E. coli reach the human bladder. Suppose that 3000 of the bacteria are
4 answers
807 views
man on 12m tower, he observed two houses. the angle of depression to one of them was 6' and the other is 3'. how far apart the
4 answers
671 views
Two companies charge these rates for printing a brochure :
Company A charges $175 for set up and 0.10 pet brochure Company B
4 answers
1,426 views
The Eskimos are trying to generate more money because player wages are increasing. they have came up with a couple of plans:
Plan
1 answer
470 views
The Eskimos are trying to generate more money because player wages are increasing. they have came up with a couple of plans:
Plan
4 answers
499 views
The S.I. Unit of displacement is what?
1 answer
338 views
The standard piece of apparatus used to measure distance in the laboratory is what?
1 answer
348 views
The position of a point A is specified as A (5.7).the y-coordinate is ?
1 answer
318 views
For $5 you can buy a ticket for a drawing for a prize of $2,000. The probability of winning the prize is 0.001. How much money
1 answer
475 views
Show three ways to make 0.60 without using pennies
5 answers
1,259 views
Using Simpson role to find the denvatives of x=(y²+3x+7) (x²-4)
1 answer
324 views
which of the following is not scalar quantity.
0.20m 5.0m/s 10.0m/s[E] 110km/h
4 answers
1,214 views
whats the difference between average speed and instantaneous speed?
1 answer
391 views
A vehicle is travelling 1.0x10^2 km/h. what is the spped of the vehicle in metres per second?
28m/s 27.8m/s 3.6x10^2m/s
4 answers
3,735 views
Within the Gaetz Lake Sanctuary in Red Deer, Alberta, is a looped trail that is 4 km long. Suppose a person walked all the way
5 answers
2,520 views
Starting from rest, an object rolls down a long ramp with a constant acceleration of 1.72 m/s2. After rolling for 4.75 s, what
4 answers
1,945 views
A traffic-safety engineer is designing a deceleration lane.
She is basing the length of this lane on the distance needed to slow
4 answers
3,191 views
A skydiver steps out of a helicopter hovering thousands of metres above ground. After 3.5 s of free fall the skydiver pulls the
3 answers
1,382 views
9. The Pleistocene Epoch, from 1.7 million years ago to 10 000 years ago, was marked by
A. a lack of oxygen B. the presence of
2 answers
1,271 views
a stone projected horizontally from the top of a tower with a speed of 4m/s lands on the level ground at a horizontal distance
5 answers
2,315 views
Wilma drove at an average speed of 35 mi/h from her home in City A to visit her sister in City B. She stayed in City B 15 hours,
3 answers
1,486 views
the electron beam in a television tube consists of electrons accelerated from rest through a potential difference of about
3 answers
762 views
a)Write a function o represent the area of the rectangle.
one side - 5x+15 other side - 31-2x b) Graph the function- lebel x and
4 answers
854 views
Solve 3 - x = √x2 - 5 . State any
extraneous roots that you found. Identify the values of x for which the radical is defined.
1 answer
461 views
Y=|X^2+3x-4|
find dy/dx?
4 answers
290 views
Sin3A=3sinA-4sin(x/2)^3
find x interms of A? PLZ show working got no ideal at all
4 answers
492 views
Steve the builder was plastering a wall while standing on a ladder..he noticed that the number of rungs/steps below,the rung he
2 answers
610 views
Out of 300 student in final year in senior secondary school, 200 are offering biology and the150 offering chemistry how many are
2 answers
633 views
graph of 5x-2y=6 value 0=2
4 answers
327 views
The position vector of m in the same plane are as the point a and b is given by m=1÷2(a+b).if the vector A(-4,-3),B(2,-1).What
1 answer
430 views
Please I need a detailed explanation, am stuck doing this assignment, at what temperature in kelvin will co2 molecules have an
2 answers
563 views
The first term of an AP is equal to thrice the common difference. What is the sixth term of the AP,if the common difference is 8
5 answers
1,469 views
A box contain 40 pens of equal sizes.10 of them are green and 18 are red.if a pen is chosen at random from the box,what is the
7 answers
2,215 views
A bullet is fired horizontally from the top of a cliff with a speed of 30m/s.assuming that there is no air resistance, what will
3 answers
881 views
A projectile leaves the ground at an angle of 60degree to the horizontal.it initial kinetic energy is E. Neglecting air
3 answers
3,372 views
The efficiency of a machine is 80%.calculate,the amount of energy needed by the machine to do work of 150joules.
1 answer
521 views
A stick is 203cm long. The stick is cut into n pieces, each the same length. What is the length of each piece?
2 answers
497 views
Eric is twice as old as Ernest, who in turn is 5 years older than mike.if their total age is 47 years, how old is each of them?
2 answers
509 views
how many unpeeled electrons are in this configuration 1s2 2s2 2p6 3s2 3p3
2 answers
585 views
how many unpaired electrons are in this configuration 1s2 2s2 2p6 3s2 3p3
5 answers
2,460 views
A bicycle has a radius of 28cm
How far does it travel in four complete turns
3 answers
1,252 views
A metal x form different chlorides.If 12.7g of chloride A and 16.3g of chloride B contains 7.1g and 10.7g of chlorine
2 answers
568 views
A stone, 2kg is projected vertically at a velocity of 5m/s at an Angle of 60°
Calculate I.Time taken to attain maximum height
3 answers
617 views
A commuter plane flies from City A to City B, a distance of 90 mi due
north. Due to bad weather, the plane is redirected at
4 answers
1,499 views
john's age in the next ten years will four times his age five years ago. How old is john now?
2 answers
535 views
if he travels 7km N 30 degree E and 10km east find the resultant displacement
3 answers
588 views
Which of the following homogeneous and which are heterogeneous? Blood, carbon dioxide,Rock, steak,iron, concrete, air,oxygen,
3 answers
495 views
The teet of two vertical poles of height 3m and 7m are in line with a point P on the ground. The smaller pole being between the
4 answers
2,595 views
A rectangular pyramid that measure 10cm by 7cm. Calculate
A the surface area B.volume of the pyramid C.the sides of a triangle.
5 answers
1,054 views
in suv of which the total mass is 800 kg is travelling with an initial velocity of 200m/s suddenly observe a stationary dog 50m
1 answer
436 views
How many grams of commercial C2H4O2 (97% pure by mass) must be allowed to react with an excess of PCl3 to produce 75.0g of
3 answers
939 views
Calculate the volume of carbon 4 oxide gas at s.t.p when 5g of zinc trioxocarbonate is heated strongly.
2 answers
1,100 views
Byron wants to use the distributive property to rewrite the addition problem shown so that the numbers left in the parentheses
5 answers
2,193 views
After 0.6523g of CoCL2 .6H2O is heated, the residue has a mass of 0.3423g. Calculate the percent H2O in the hydrate. What is the
2 answers
746 views
show the limit of |X| if X tend to 0
1 answer
357 views
A uniform beam 6m long weighing 4kg rests on supports p and q placed left and right 1metre from each end of the beam. Weight of
3 answers
923 views
If x is an acute angle, tanx =3/4,evaluate coax _sinx÷cosx+sinx
10 answers
4,139 views
An american car travels 32 miles on one gallon. A European car travels 12.7 kilometers on one liter of gas. Wich car gets better
4 answers
1,153 views
calculate the percentage by mass of silicon tetrachloride
5 answers
2,718 views
In a circle of radius 12cm a chord is drawn 3cm from the centre. Find the angle subtended at the centre
5 answers
857 views
In the laboratory, a student heats 96.27 grams of zinc to 98.06 °C and then drops it into a cup containing 76.46 grams of water
2 answers
501 views
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