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Under a driving force of 3000 N, a car of mass 1200 kg has an acceleration of 1.3 m/s2. Find the frictional resistance acting in the car.
asked
Jul 7, 2021
in
Physics Form 1
by
anonymous
force
0
votes
1
answer
State the three factors on which the rate of heat flow depends on.
asked
Jul 7, 2021
in
Physics Form 1
by
anonymous
thermal expansion
heat transfer
0
votes
1
answer
Calculate the acceleration due to gravity on a planet where an object released from rest falls through a height of 54.2 m in 1.08 s
asked
Jul 7, 2021
in
Physics Form 2
by
anonymous
equilibrium
centre of gravity
0
votes
1
answer
Study the set up below and answer the questions that follow
asked
Jul 7, 2021
in
Chemistry Form 1
by
anony mous
water and hydrogen
hydrogen reaction
0
votes
1
answer
An air bubble with a volume of 1 cm3 escapes from the helmet of a diver at a depth of 200 m below the water surface. What will be the volume of the bubble immediately it breaks the surface of water? (Take atmospheric pressure = 10 m of water)
asked
Jul 7, 2021
in
Physics Form 1
by
anonymous
pressure
volume
0
votes
2
answers
State the principle of moments
asked
Jul 7, 2021
in
Physics Form 2
by
anonymous
turning effect of a force
0
votes
1
answer
A railway truck of mass 4000 kg moving at 3 m/s collides with a stationary truck of mass 2000 kg. The couplings join and the trucks move off together. Calculate their common velocity after collision.
asked
Jul 7, 2021
in
Physics Form 3
by
anonymous
linear motion
0
votes
1
answer
Give a reason why heat transfer by radiation is faster than heat transfer by conduction
asked
Jul 7, 2021
in
Physics Form 1
by
anonymous
waves
0
votes
1
answer
State the SI unit of density
asked
Jul 7, 2021
in
Physics Form 1
by
anonymous
measurements
0
votes
1
answer
Calculate the temperature change of water as it falls through a height of 20 m. (Take g = 10 N/kg and s.h.c of water =4200 J/kg/K)
asked
Jul 7, 2021
in
Physics Form 1
by
anonymous
measurements
thermal expansion
0
votes
1
answer
When calcium carbonate was added to a solution of dry hydrogen chloride in methyl benzene there was no observable reaction. Explain.
asked
Jul 7, 2021
in
Chemistry Form 3
by
anony mous
chlorine and its compounds
properties of hydrogen chloride
effect
0
votes
1
answer
The level of water in a burette is at 30 cm3. 400 drops of water each of volume 0.015 cm3 was removed from the burette.
asked
Jul 7, 2021
in
Physics Form 1
by
anonymous
measurements
volume
0
votes
1
answer
When a current of 0.5 amperes was passed for 32 minutes and 10 seconds through fused chloride of metal P 0.44 of P was deposited. Determine the charge of the ion of metal P. (IF = 96,500C, P =88)
asked
Jul 7, 2021
in
Chemistry Form 4
by
anony mous
acids bases and salts
metals
0
votes
1
answer
50cm3 of oxygen gas diffused through a porous plug in 80 secs. How long will it take 100cm3 of sulphur (IV) oxide to diffuse through the same plug? (S = 32 0= 16)
asked
Jul 7, 2021
in
Chemistry Form 3
by
anony mous
gas laws
0
votes
1
answer
The structure below represents a segment of a polymer. Use it to answer the questions that follow.
asked
Jul 7, 2021
in
Chemistry Form 4
by
anony mous
organic chemistry
alkanols and alkanoic acids
polymers
molecular mass
0
votes
1
answer
Identify the following cleansing agents
asked
Jul 7, 2021
in
Chemistry Form 4
by
anony mous
organic chemistry
alkanols and alkanoic acids
detergents
0
votes
1
answer
A gaseous compound consists of 86% carbon and 14% hydrogen by mass. At s.t.p, 3.2dm3 of the compound has a mass of 6g. (C = 12 H = 1 molar gas volume at s.t.p = 22.4dm3)
asked
Jul 7, 2021
in
Chemistry Form 3
by
anony mous
the mole-formulae and chemical equations
empirical formulae
molecular formulae
0
votes
1
answer
Using dots (•) and crosses (x) show bonding in; (C = 2, 0 = 16, H = 1)
asked
Jul 7, 2021
in
Chemistry Form 2
by
anony mous
structure and bonding
water
carbon(iv)oxide
0
votes
1
answer
The table below shows the pH values of solution J to N
asked
Jul 7, 2021
in
Chemistry Form 4
by
anony mous
acids bases and salts
hydroxides
complex ions
0
votes
1
answer
Study the experimental set up of apparatus shown below.
asked
Jul 7, 2021
in
Chemistry Form 2
by
anony mous
carbon and its compounds
carbon(ii)oxide properties
experiment
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