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Answer to "Word problems" question1. A piece of string wraps around a cylinder 8 times. The length of the string is 14 cm. calculate the circumference of the cylinder.
2. The mass of full bottle of cooking oil is 1.30 kg, when exactly half of the oil has been used; the mass of the bottle plus the remaining oil is 0.90kg.what is the mass of empty bottle.
3. The same mass of four different liquids is placed in some measuring cylinders, which measuring cylinder contains the liquid with the greatest density
a) (cylinder)beaker of 10 cm3 with liquid 8cm3
b) beaker of 10 cm3 with liquid of 4 cm3
c) beaker of 25 cm3 with liquid of 5cm3
d) beaker of 25 cm3 with the liquid of 10cm3.
David is driving a steady 26 when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.8 at instant when David passes.
A worker pushes horizontally on a large crate with a force of 304 N and the crate is moved 4.4 m. How much work was done.
Assume that the sun runs out of nuclear fuel & suddently collapses to form a white dwarf star, with a diameter equal to that of the Earth. Estimate the new rotation period of the Sun.
What is the highest possible induced emf in the antenna as it moves through the Earth's magnetic field.
How long does it take for the grinding wheel to stop ? Through how many radians has the wheel turned during the interval found in.
A rifle with a barrel length of 58 fires an 11 bullet with a horizontal speed of 370. The bullet strikes a block of wood and penetrates to a depth of 15.
A 1000-kg car travelling at a speed of 32 m/s skids to a halt on wet concrete where f_k = 0.3. How long are the skid marks.
A 2 kg rock is released from rest at a height of 29 m. neglect air resistance and determine the kinetic energy, gravitational potential energy, and total mechanical energy at each of the following heights: 20m; 15m; 5m; 9m.
For no apparent reason, a poodle is running at a constant speed of 3.40 m/s in a circle with radius 2.8m. Let v1 be velocity vector at time t1, and let v2 be the velocity vector at time t2.
Establish the wave functions and the general expression
What is wave number
what will be the height h of the highest point reached by the skateboarder on the right side of the ramp.
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