An object is placed 10m from a pinhole camera of length 25cm. Calculate the linear…
An object is placed 10m from a pinhole camera of length 25cm. Calculate the linear magnification. A. 2.5×102…
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The distance between two successive crests of a wave is 15cm and the velocity 300ms-1….
The distance between two successive crests of a wave is 15cm and the velocity 300ms-1. Calculate the frequency.…
The equation PaVbTc= constant reduces to Charles Law if
The equation PaVbTc= constant reduces to Charles Law if A. a=1, b=1and c=0 B. a=1, b=0 and c=-1…
What is the equivalent of 20K in Celsius scale?
What is the equivalent of 20K in Celsius scale? A. -253oC B. -293oC C. 68oC D. 36oC Correct…
A force of 500N1 is applied to a steel wire of cross-sectional area 0.2m2, The…
A force of 500N1 is applied to a steel wire of cross-sectional area 0.2m2, The tensile stress is…
The small droplets of water that form on the grass in the early hours of…
The small droplets of water that form on the grass in the early hours of the morning is…
A machine whose efficiency is 75% is used to lift a load of 1000N. Calculate…
A machine whose efficiency is 75% is used to lift a load of 1000N. Calculate the effort put…
A wheel and an axle is used to raise a load whose weight is 800N…
A wheel and an axle is used to raise a load whose weight is 800N when an effort…
What happens when three coplanar non-parallel forces are in equilibrium?
What happens when three coplanar non-parallel forces are in equilibrium? A. Their lines of action are parallel. B.…
The energy in the nucleus of atoms produce heat which can be used to generate
The energy in the nucleus of atoms produce heat which can be used to generate A. Kinetic energy…