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UTME 2017: Thread For Science Jambites - Education (17) - Nairaland

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Re: UTME 2017: Thread For Science Jambites by Donpre(m): 2:11pm On Apr 05, 2017
The physical and climatic factors of a region primarily determine the?

A. kinds of animals inhabiting the area
B. types of plants found in the area
C. nature of the soil in the region
D. community of organisms in the region
Re: UTME 2017: Thread For Science Jambites by Nobody: 2:13pm On Apr 05, 2017
D
Re: UTME 2017: Thread For Science Jambites by Donpre(m): 2:15pm On Apr 05, 2017
Q.8.... Give reason

Re: UTME 2017: Thread For Science Jambites by Donpre(m): 2:16pm On Apr 05, 2017
emeraldgist:
D
Explain... why not nature of soil?
Re: UTME 2017: Thread For Science Jambites by Nobody: 2:21pm On Apr 05, 2017
undecided Look at these guys, somewhat feeling like bosses over jamb questions. If you notice, this thread has a lot of views with less people commenting. not because they are naive to the questions or they don't know the answers. Aren't oau putme questions way technical than this?, people dust them without a flamboyant pre_show of brilliance.

Make this thread more of interactive and teaching as well.

Peace

1 Like

Re: UTME 2017: Thread For Science Jambites by Nobody: 2:24pm On Apr 05, 2017
Donpre:

yes I have... it didn't help

someone should answer this... snapshot your work if possible

Given the progressive wave equation y = 5 sin (200?t - 0.4x), calculate the wavelength

a. 12.4m b. 15.7m c. 17.5m d. 18.6m

1 Like

Re: UTME 2017: Thread For Science Jambites by Donpre(m): 2:35pm On Apr 05, 2017
Another....
When a simple harmonic wave is propagated through a medium, the displacement of a particle (in cm) at any instant of time is given by
y = 10 sin 2π /100 (3600 t – 20)
Calculate, the amplitude of vibrating particle, wave velocity, wavelength, frequency and time period.

Please simplify and snapshot!
Re: UTME 2017: Thread For Science Jambites by Nobody: 2:56pm On Apr 05, 2017
Donpre:
Another....
When a simple harmonic wave is propagated through a medium, the displacement of a particle (in cm) at any instant of time is given by
y = 10 sin 2π /100 (3600 t – 20)
Calculate, the amplitude of vibrating particle, wave velocity, wavelength, frequency and time period.

Please simplify and snapshot!
This forms the basis of any progressive wave equation
Asin2π/√(vt-x)
From here you can derive anything the question demands.

Re: UTME 2017: Thread For Science Jambites by Temilola21(f): 3:04pm On Apr 05, 2017
Donpre:
Another....
When a simple harmonic wave is propagated through a medium, the displacement of a particle (in cm) at any instant of time is given by
y = 10 sin 2π /100 (3600 t – 20)
Calculate, the amplitude of vibrating particle, wave velocity, wavelength, frequency and time period.

Please simplify and snapshot!


I cant take d snapshot so i'll represent wavelength with Q and pi with M



Compare y=10 sin 2M/100 (3600t-20)
y=A sin 2M/Q (Vt-x)
So Amplitude,A=10
Velocity,V=3600
Wavelength,Q=100

Frequency=V/Q
=3600/100
=36hz

Period,t=1/f
=1/36
=0.027 secs

2 Likes

Re: UTME 2017: Thread For Science Jambites by Donpre(m): 3:13pm On Apr 05, 2017
Optimist1998:

This forms the basis of any progressive wave equation
Asin2π/√(vt-x)
From here you can derive anything the question demands.
Temilola21:



I cant take d snapshot so i'll represent wavelength with Q and pi with M
Thanks y'all... Really, I'm grateful!
Re: UTME 2017: Thread For Science Jambites by felix00(m): 4:26pm On Apr 05, 2017
Nuel25846:

why don't u open shop and do chemist like every other person??
I think doin dat with a certificate Is what separates us frm CHEMIST....
Re: UTME 2017: Thread For Science Jambites by FrancisAsquare(m): 4:30pm On Apr 05, 2017
Hello, will FUTA accept Mathemematics, English, Physics and Economics for Computer Science under UME requirement?

1 Like

Re: UTME 2017: Thread For Science Jambites by Nobody: 6:47pm On Apr 05, 2017
FrancisAsquare:
Hello, will FUTA accept Mathemematics, English, Physics and Economics for Computer Science under UME requirement?
...

Re: UTME 2017: Thread For Science Jambites by SamanN: 7:14pm On Apr 05, 2017
Optimist1998:

You're dealing with triangles within the stipulated 2s to 5s time frame

Oh thanks, but got option E as my answer. What did you get?
Re: UTME 2017: Thread For Science Jambites by SamanN: 7:18pm On Apr 05, 2017
I also suggest we bring more questions on other subjects, physics should NOT stop
Re: UTME 2017: Thread For Science Jambites by SamanN: 7:20pm On Apr 05, 2017
Donpre, do you understand the concept behind progressive waves equation now?
Re: UTME 2017: Thread For Science Jambites by Donpre(m): 7:41pm On Apr 05, 2017
SamanN:
Donpre, do you understand the concept behind progressive waves equation now?
Yeah! its clearer now.
Re: UTME 2017: Thread For Science Jambites by Donpre(m): 7:42pm On Apr 05, 2017
Are the biology questions at the top of the page invisible?... why is no one answering them?
Re: UTME 2017: Thread For Science Jambites by Donpre(m): 7:59pm On Apr 05, 2017
If a sound wave goes from a cold air region to a hot air region, its wavelength will

A. increase
B. decrease
C. decrease then increase
D. remain constant

Give reason
Re: UTME 2017: Thread For Science Jambites by SirdimayG(m): 8:19pm On Apr 05, 2017
don't know how I will go about this chemistry in ma jamb. Coz my chemistry knowledge is nothing to write home about. If you have any idea share it with me. God help me.
Re: UTME 2017: Thread For Science Jambites by vicstiqs95: 8:24pm On Apr 05, 2017
pls can i buy the jamb E-pin and register a day after? hope it wont expire
Re: UTME 2017: Thread For Science Jambites by Nobody: 8:26pm On Apr 05, 2017
Donpre:
Q.8.... Give reason
most reptiles are oviparous,all birds are oviparous and most fishes are ovoviviparous and I is out of the question do I stand for Mr Fish
Re: UTME 2017: Thread For Science Jambites by Donpre(m): 8:45pm On Apr 05, 2017
vicstiqs95:
pls can i buy the jamb E-pin and register a day after? hope it wont expire
it won't.. I registered 2 days after getting my pin
Re: UTME 2017: Thread For Science Jambites by SamanN: 10:52pm On Apr 05, 2017
Donpre:
If a sound wave goes from a cold air region to a hot air region, its wavelength will

A. increase
B. decrease
C. decrease then increase
D. remain constant

Give reason


What i can remember, stand to be corrected speed of sound is directly proportional to square root of temperature. Therefore the velocity of sound increases with temperature.
Velocity is also directly proportional to wavelength in V=F x wavelength. So the wavelength increases, option A.
Re: UTME 2017: Thread For Science Jambites by trekkie: 1:03am On Apr 06, 2017
Hello everyone in the house. I am a quickteller paypoint agent. I am here to make your jamb registeration easier. Please to receive your e-pin contact me via this phone number 07035958148.
Re: UTME 2017: Thread For Science Jambites by Nobody: 7:15am On Apr 06, 2017
SamanN:


Oh thanks, but got option E as my answer. What did you get?
Did you take note of the negative sign in the first triangle?
Re: UTME 2017: Thread For Science Jambites by Nobody: 7:16am On Apr 06, 2017
IemFava:
most reptiles are oviparous,all birds are oviparous and most fishes are ovoviviparous and I is out of the question do I stand for Mr Fish
Donpre she's correct right?
Re: UTME 2017: Thread For Science Jambites by Donpre(m): 7:20am On Apr 06, 2017
Optimist1998:
Donpre she's correct right?
I dunno the answer myself... Textbook says some fishes are ovoviparious, internet says there are some Ovoviparious amphibians. I was hoping you guys would chip in something.

I'm going with Mr Fish too.. pastQue says Amphibians
Re: UTME 2017: Thread For Science Jambites by Nobody: 7:21am On Apr 06, 2017
Chemistry
Cr2O7 + 6Fe2+ + 14H+ → 2Cr3+ +6Fe3+ + 7H2O. In the above , the oxidation number of chromium changed from?
A. +7 to +3
B. +6 to +3
C. +5 to +3
D. -2 to +3
Which of the following molecules is linear in shape?
A. CH4
B. H2O
C. NH3
D. H2S
E. CI2

Physics
If a positively charged glass-rod is used to charge an electroscope X by contact and an electroscope Y by induction, then
A. X and Y will be negatively charge
B. X and Y will be positively charged
C. X will be negatively charged and Y positively charged
D. X will be positively charged and Y negatively charged
E. X will be positively charged and Y will remain uncharged

In a meter bridge experiment, two resistor 2ΩΩ and 3ΩΩ occupy the left and right gaps respectively. Find the balance point from the left side of the bridge
Re: UTME 2017: Thread For Science Jambites by Donpre(m): 7:24am On Apr 06, 2017
Chem 1. A 2. E
Re: UTME 2017: Thread For Science Jambites by vicstiqs95: 7:24am On Apr 06, 2017
Donpre:
it won't.. I registered 2 days after getting my pin

tenks for the reply.
Re: UTME 2017: Thread For Science Jambites by Nobody: 7:29am On Apr 06, 2017
Donpre:

I dunno the answer myself... Textbook says some fishes are ovoviparious, internet says there are some Ovoviparious amphibians. I was hoping you guys would chip in something.

I'm going with Mr Fish too.. pastQue says Amphibians
Alright noted
Personally I couldn't think of any answer from the options.
But why would jamb set such a question?

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