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In 360 tosses of a pair of dice, 74 sevens and 24 elevens are observed. Using the 0.05significance level, test the hypothesis that the dice are fair.
As it enters the uniform magnetic field within the solenoid, its speed is 790 m/s and its velocity vector makes an angle of 30 degree with the central axis of the solenoid. Find how many revolutions does the electron make along its helical path wi..
discuss the effects of different floor angles on the distance up the incline that you will have to sit in a movie
A dart is thrown horizontally toward the bull's-eye, point P on the (non-standard size) dart board, How far away from the dart board did the dart thrower stand
Then the analyzing magnet after the accelerator is used to select the 12C beam with charge state of 3+ for an experiment. What should the terminal voltage of the accelerate be set to if the energy of the 12C beam is needed to be 20Mev?
The sound level in decibels is typically expressed as ? = 10 log (I/I0), but since sound is a pressure wave, the sound level can be expressed in terms of a pressure difference. Intensity depends on the amplitude squared, so the expression is ? = 2..
A bike wheel with a mass of 2.5 kg and a radius of 33 cm rolls across a horizontal floor with a transitional speed of 1.5 m/s. Find how far up the ramp will it go before stopping
A 0.700 kilogram ball is on the end of a rope that is 1.30 meter in length. Determine what is the tangential speed of the ball
an object of mass m = 6.0 kg hangs from a cord around a light pulley. The length of the cord between point P and the pulley is L = 2.0 m. What must be the linear mass density of the cord
A 4.20–kg block is set into motion up an inclined plane with an initial speed of vi = 7.40 m/s (see figure below). The block comes to rest after traveling d = 3.00 m along the plane, which is inclined at an angle of ? = 30.0° to the horizontal.
A man leaps from the top of a 60 meter tall building. If his initial speed is 24 m/s and at an angle of 23 degrees above the horizontal, then with what speed does he hit the ground as he lands
How long is the rocket in the air?
Why is it more difficult to walk on a sandy road than on a concrete road? Please give explanation.
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