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Question: On a windy day a leaf is blown from 5m high central branch tree. As soon as it leaves the branch it is blown at 10ms-1 towards the East until it lands in a river flowing south. The leaf then floats down the river at 3ms-1 FOR 20 seconds until it gets caught on a rock. How far and in what direction from the base of the tree is the rock?
question1a bolt drops from the ceiling of a train car that is accelerating northward at a rate of 3.50 ms2.a what is
what average power was developed. A curve of radius 70 m is banked for a design speed of 110 km/h. If the coefficient of static friction is 0.30 (wet pavement), at what range of speeds can a car safely make the curve.
The lowest outdoor temperature ever recorded on Earth was %u2212128.6 %u25E6F, recorded at Vostok Station, Antarctica, in 1983. What is this temperature on the Kelvin scale
What is the temperature of the outside air. What are the components of the displacement vector from camp to summit? What is its magnitude? select the x axis east, y axis north, and z axis up.
The polarizing angle for light in air incident on a glass plate is 57.2. What is the index of refraction of the glass
An electric current of 1 A flows through a 20 ? resistor which is kept at a constant temperature of 10° C by flowing water. In 1 s what is the entropy change of the resistor and the entropy change of the water?
Two students are on a balcony 18.30 m above the street. One student throws a ball, b1, vertically downward at 16.80 m/s. At the same instant, the other student throws a ball, b2, vertically upward at the same speed.
A 0.14- kg block on a wooden table is given a sharp blow with a hammer. The block then slides across the table to a stop. How far does the block go
A person drops a cylindrical steel bar (Y = 1.70 × 1011 Pa) from a height of 4.70 m, what is the maximum compression of the bar
A 58 g tennis ball is served at 40 m/s. Find the de Broglie wavelength of the tennis ball
A 45 degree wedge is pushed along a table with constant acceleration A. A block of mass m slides without friction on the wedge. Find its acceleration (gravity is downwards),
Two charged bodies exert the force of 0.185N on each other. If they are moved so that they are one-fourth as far apart, what force is exerted.
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