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Kabir
Questions and answers by
Kabir
Questions (7)
youre standing on the ground your friend is standing on a balcony of an apartment building 12m above you. you throw a ball
2 answers
633 views
Q. If tossing a fair coin, how many tosses does it take to get two heads in a row, on average?
__________________________________
4 answers
504 views
There are 3 types of apples in a basket: 7 Red Delicious apples, 8 Gala apples, and 9 Granny Smith apples. Without looking, what
6 answers
1,690 views
There are 5 Saturdays in February 2020. What day of the week is February 03, 2020?
Note: There are 29 days in February 2020. What
4 answers
1,078 views
What is table laying and its importance
7 answers
1,306 views
my thousandth digit is 3 times my hundredth digit. The sum of the tenth digit and unit digit is 1 less than my thousandth digit.
5 answers
483 views
A cylindrical tin 8 cm in diameter contain water to a depth of 4 cm. If a cylindrical wooden rock 4 cm in diameter and 6 cm long
1 answer
141 views
Answers (50)
thanks you
Define table laying
1) You've been given a speed, and a distance, and you must find a time. So first, identify the formula that relates the three, which is: speed x time = distance 2) Taking the unknown time as x (in hours, since the speed is given in hours), plug the values
can you please explain how?
Momemtum = Mass x Velocity = (5 kg) x (10 m/s) = 50 kg.m/s
huh?
It is a math problem; not a google problem
Bernoulli's principle The difference in the velocities of the air creates a difference in pressure on both sides of the wing, which is described by Bernoulli's principle.
13
Distance from the ground = s = 10m Acceleration = g = a = 10m/s^2 Initial speed = u = 0m/s (As it is dropped) Using the equation, s = ut + (1/2)at^2, => s = (1/2)at^2 => t^2 = 2 => t = root 2 Use v = u + at for speed
=> Number of moles of K2O in given sample = Total mass/molar mass = 7.45/(39 + 39 + 16) = 7.45/94 => Number of molecules = Number of moles x Avogadro's Number = (7.45/94) x N => Number of ions = Number of molecules x 3 = (7.45/94) x N x 3
501
It's not possible for the difference of two consecutive numbers to be 15, by definition of 'consecutive', the difference is one If, however, the word 'sum' is supposed to be at that place, then the numbers are 7 and 8
Math Score = M English Score = X Maths Score = 23 more than (2/3)*X M = (2/3)*X + 23
Acceleration = 4.5 m/s^2 = 4.5 x 1m/1sec x 1sec = 4.5 x (100cm)/1sec x 1sec = 450cm/s^2
"He must have cut class yesterday" says that he skipped his class on purpose, and did not intend to go to class. "He must have missed the class yesterday" could also mean that he wanted to attend class but couldn't; for example if he could not reach class
Total length = 5m = 500 cm Each piece = 500 divided by 8, i cm = 500/8 = 62.5cm
C always pairs with G And A always pairs with T So the answer is GAGCT
Principal Amount = P = 280,000 Final Amount = F = 386,400 Years = T = 4 Simple Interest = SI = F - P = 106,400 Rate = R SI = P x R x T R = SI/(P x T) = 106,400/(1,120,000) = 0.095 = 9.5% Use that to find the amount per year
You haven't put up the options to go with the question, but anything along the lines of 'tail' works. When the ice begins to sublime (change to gases) these gases form a tail like shape away from the comet.
The total heat energy is the heat energy required to change ice to water, plus the energy to bring water from 0C to 75C. a) Specific latent heat of fusion of water (per kg) = 334kJ Heat required for two kgs = 334 x 2 = 668kJ b) Heat for temp. change = C x
This means that for x = 3, f(x) = -2/19 So, (2-k)/(5x+k) = -2/19 (2-k)/(15+k) = -2/19 38 - 19k = -30 -2k 68 = 17k k = 68/17 = 4
'C' should be 2.998 x 10^8, shouldn't it?
Three significant digits: 5, 8, and the 0 after 8
5,000.080
What is the question asking for? Is it the wavelength?
97553 97531 75331
First eight primes -> 2,3,5,7,11,13,17,19 Prime Fac. -> 2 x 3 x 5 x 7 x 11 x 13 x 17 x 19 You can thus find the number
=> First, you must note that the number given to you is 45. So, you must find its prime factorisation. 45 = 3 x 15 = 3 x 3 x 5 Since this is the same as the code for Dan, the message is from Dan.
a) Here's the theoretical probability, it's the probability that comes up from calculations using known formulae of probability: P(red from all three) = P(red from A)*P(red from B)*P(red from C) P(A) = 3/8 (3 out of 8) P(B) = 4/10 P(C) = 5/12 =
I hope you're not as confused now :)
Okay, so this answer kind of relates to global warming. Firstly, you should know that the sun releases a lot of heat, and harmful Ultraviolet (UV) rays. This is the 'incoming radiation' in your question. The factors that control it are the amount of ozone
=> Using the rotational analogue of the common equation of motion 2as = v^2 - u^2 , we get: 2 x (Ang. Acc) x (Ang. Distance) = (Final Angular Vel.)^2 - (Initial Angular Vel.)^2 => Since it comes to a stop, the Final Ang. Vel. is zero. The intial is given
I believe the major effect would be refraction, I'll put up more once I recall them
Ah, misread the question and then accidentally put a 6 in place of a 5 Thanks for the correction
Instead of 100,000 x (1.60)^6 It'll be 100,000 x (0.60)^6
I'm sorry, I misread the question as '60% more than the one before it.' The answer above is incorrect, I'll update the answer
The formula you're going to use for this is as follows: Initial Prize Money x (1 + Fraction of increase)^(ticket number - 1) => I'll represent 60% as 0.6 => So, the answer is 100,000 x (1.60)^6, which you can solve.
=> The commutative property of addition means that the order of things added does not affect the answer. Therefore, a + b = b + a. So, we reverse the order of the two terms in this question. => The associative property of multiplication is that we can
Just to be clear, the point I was making by 'will be in parallel' is that they will have a common potential difference (V). So you have the values of C, a common value for V, and the total value of Q. Can you recall a certain equation which includes C, V,
=> First, we calculate the net charge stored in the initial circuit. => Q stored in C1 = CV = 2 x 120 = 240 micro Coul. => Q stored in C2 = CV = 6 x 120 = 720 micro Coul. That gives us a total charge of 960 micro Coul. Try using the following hints now to
Thanks! This clears it up.
Before the change: Jar A contains 8 red balls and 2 green balls. Jar B contains 6 red balls and 3 green balls. After the change: Jar B contains 6 red balls, 3 green balls, and one ball that has a 1/5 chance of being green and 4/5 chance of being red. So,
=> The formula regarding the given values is as follows: Force = Mass x Acceleration => So, the acceleration is given by: Force/Mass = 8/2.4 = 3.33 m/s^2
by heating up the milk to high temperatures, in order to kill all bacteria present in it and make it safe to drink. Killing the bacteria also prevents bacterial action and thus preserves milk.
a) In order to find the ways you can randomly select 4 of them, we use Combinations: C(10,4) = 10!/6!4! = 210 b) Two select in a specific way, we use different combinations for the burnt out and good bulbs, and multiply them: C(7,2) x C(3,2) = 7!/5!2! x
Part 1: Distance => When we talk about distance, we consider the length of the total path travelled. This means, we add up every time the ant goes up 20cm, and crosses the length of 20cm. Since the distance travelled per stair is 40cm (20cm + 20cm), and
I feel there's something incorrect with the question; a line segment by definition has two end points. Did you perhaps mean mid-point?
=> We need to find the total time spent reading the book, so we'll add the times given for each day. => So, we must add the following fractions: 4/5 + 1/6 + 2/5 Fractions can only be added when they all have a common denominator. To make a common
20 60
