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Cosmic

New Member
Jul 26, 2019
1
20
Topic motion(physics)
A body at rest upon by a force for 20seconds.
The force is then withdrawn, the body moves a distance of 60m in the next 5seconds. If the mass of the body is 10kg. Calculate the magnitude of the force.
 

MUUZA NGADA

JF-Expert Member
Jan 21, 2018
328
500
mwenye kukumbuka derivations ya inverse of coseh plz afanye kisha apige picha na kuweka hapa since there's some place nafail during derivation guys :rolleyes::rolleyes:
 
Sep 22, 2019
7
20
Wakuu katika kupitia nyuzi mbalimbali humu nimegundua hili jukwaa lina wanafunzi wengi sana hasa kidato cha 5 au chini ya hapo pia wanavyuo

Hivyo basi ni vyema walimu na watu wenye uzoefu tuwasaidie hawa watu ili wafanye vyema ktk masomo yao kwa wenye nia njema, jukwaa hili ni muhimu na tukilitumia tukainua ufaulu wa ndugu zetu tutaongeza Tanzania njema yenye wasomi bora.

karibuni, mimi tupia swali la linguistics/language 1&2 (kwa A-level) au english kwa O - level na Geography.

Walimu wazuri na Wataalam wengine watajitajitokeza ukirusha swali lolote.
Eti ukiwa na cheti cha AIRFAIR&TICKETING WITH TOUR GUIDING OPERATION cha short course unaweza kuapply diploma ya UALIMU,IT NA ACCOUNTING? Au ni dploma gani naweza kuapply?msaada tafadhalini..Asanteni🙏
 

raphizo02

Member
Jan 12, 2013
6
20
Ni ngumu kuaply kitu tofauti kwakutumia cheti kisicho ma uhusiano na taaluma mpya unayotaka kusomea.
Nashauri utumie cheti cha elimu inayofahamika (CSEE & ACSEE) kuomba kitu kimya
Eti ukiwa na cheti cha AIRFAIR&TICKETING WITH TOUR GUIDING OPERATION cha short course unaweza kuapply diploma ya UALIMU,IT NA ACCOUNTING? Au ni dploma gani naweza kuapply?msaada tafadhalini..Asanteni
 

abdulrahman Said

New Member
Sep 11, 2019
2
45
-NAOMBENI MSAADA WAKUU...
Magnesium will displace copper from copper (II) sulphate solution according to the equation,
CuSO₄(aq)+Mg(s)--->Cu(s)+MgSO₄(aq)
When excess of magnesium was added to 100cm³ of 0.1moldm⁻³ Copper(II) Sulphate,The temperature increased by 46.3ºC.It is known that The density and specific Heat capacity of the solution are 1gcm⁻³ and 4.18JgºC⁻¹ respectively,Calculate
i)The molar Enthalpy Change for the reaction
ii)Minimum quantity of magnesium required
iii)The change in Temperature if only 0.8g og Mg was added
 

F9T

JF-Expert Member
Dec 26, 2015
1,538
2,000
Nakaribisha mwenye swali la physics,, chemistry na biology,,, kwa advance na o level
sauti ya radi ilisikika sekunde ya 10 baada ya mwanga wa radi , tafuta umbali wa mawingu ikiwa speed ya sauti hewani ni 340m/s na speed ya mwanga ni 300000000m/s .
 

abdulrahman Said

New Member
Sep 11, 2019
2
45
sauti ya radi ilisikika sekunde ya 10 baada ya mwanga wa radi , tafuta umbali wa mawingu ikiwa speed ya sauti hewani ni 340m/s na speed ya mwanga ni 300000000m/s .
Consider,
Let the distance be d
''Since they were both started at the same time'' let T be the time taken by light
V=d/t....(since v is uniform)
For light
C₀=d/T
T=d/C₀...1
For sound
V=d/(T+10s)
(T+10s)=d/V
T=d/V -10s .....2
equate eqn 1 and 2
d/V -10s=d/C₀
d(1/V-1/C₀)=10
d=(10xC₀V)/(C₀-V)
d=3400.003853m
 
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