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1: One property oaf a liquid that is considered when constructing a liquid in glass thermometer is that the liquid expands more than the glass for the same temperature change. state any other properties of the liquids that are considered.
2. What property of light is suggested by the formation of shadows?
3. State 2 advantages of an alkaline battery over a lead acid battery
4. Give a reason why attraction in magnesium is not regarded as a reliable method of testing for polarity
5. State the newtons laws of motion.
A circular coil of 50 loops and a diameter 20.0 cm is lying flat on a tabletop, and carries a clockwise current of 2.50 A. A magnetic field of 0.450 T, What is the torque on the coil
A 821 kg car is going 29 m/s and the driver has to slam on his brakes to prevent an accident. what is the change in temperature of the brake pads and rotors
a 40-kg bookshelf requires a 100 n force to begin its motion. once moving it will requires a force of 60 n. what is the
a cannon shots a 1000 kg ball at 60o above horizontal. during the first second 1s the ball is accelerated inside the
How much heat energy is transferred to or from the gas during each of the three segments?
Two parallel plates, each of area 5.00 cm2, are separatedby 3.00 mm with purified nonconducting water between them. A voltage of 5.00 V is applied between the plates.
Pulling up on a rope, you lift a 4.35 kilogram bucket of water form a well with an acceleration of 1.78 m/s2. Evaluate what is the tension in the rope
a person who weighs 641 n is riding a 94.0 n mountain bike. suppose the entire weight of the rider and bike is
A man stands on the roof of a building of height 16.8m and throws a rock with a velocity of magnitude 30.6m/s at an angle of 29.3? above the horizontal. Calculate the magnitude of the velocity of the rock
What is the maximum speed by which a 1200-{\rm kg} car can round a turn of radius 60.0 {\rm m} on a flat road if the coefficient of friction among tires and road is 0.80?
A person who weighs 635 N steps onto aspring scale in the bathroom, and the spring compresses by0.75 cm. What is the spring constant? What is the weight of another person who compresses the springby 0.40 cm?
A rubber ball of mass 37.0 g is dropped from a height of 1.80 m onto a floor. What impulse was applied to the ball during the collision
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