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A hydraulic lift is lifting a car that weighs 13 kN. The area of the piston supporting the car is A, the area of the other piston is a, and the ratio A/a is 100.4. How far must the small piston be pushed down to raise the car a distance of 1.3 cm? [Hint: Consider the work to be done.]
___meters
A neutron star is the remnant left after certain supernovae (explosions of giant stars). What is a typical neutron star density
Explain the rule of subtracting two vectors in graphical and component representation, ow the position of an object changes in time in case of linear motion
What is the smallest radius of an unbanked (flat) track around which a bicyclist can travel if her speed is 25 km/h
It takes only 9.12N of force to hold up a 1KG metal crown in water, Compute the specific gravity of this metal, and guess what element it might be using a density table
What is the coefficient of static friction
Various voltages V are applied across a resistor and for each value of V the current I through the resistor is measured, What is the resistance R of the resistor
A 45-m long wire is coiled so that it makes a coil containing 100 circular loops, one on top of the other. what is the magnetic dipole moment of the coil
What is the resistance of a lightbulb that uses an average power of 55.0 W when connected to a 60.0 Hz power source having a maximum voltage of 180 V
An automobile tire is inflated with air originally at 10.0°C and normal atmospheric pressure. What is the tire pressure in pascals
The length of a beam increases by 1.26mm when its temperature is raised from 29.87oC to 71.49 oC. What is the length of the beam at the initial temperature
What is the horizontal distance x (in metres) to the base of the wall supporting the mirror of the nearest point of the floor that can be seen reflected in mirror.
A 800 kg car is travelling forwards at + 25 m s?1 along a level road. What is the acceleration during skidding
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