A hydraulic press has a large circular piston of radius 0...
A hydraulic press has a large circular piston of radius 0.8m and a circular plunger of radius 0.2m. A force of 500N is exerted by the plunger. Find the force exerted on the piston
8000N
4000N
2000N
31N
Correct answer is A
Pressure on piston = pressure on the plunger
\(\frac{500}{\pi\ \times\ 0.2 \times\ 0.2}\) = \(\frac{F}{\pi\ \times\ 0.8 \times\ 0.8}\)
F = 8000N
Which of these expresses the relationship between the earth’s magnetic field FE, and the field...
An aluminium rod of length 1.8m at 10°C is heated to proceed produce a difference in length of 0...
What does NOT affect the rate of evaporation of a liquid ...
Humidity is used to describe the amount of ...
The slope of a linear distance-times graph represents ...
A cell of e.m.f 12V and internal resistance 4Ω is connected to an external resistor of resista...