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An iron tower in is 527 feet tall on a cold day (T = -9 degrees Celsius). What is its final height (total) of the tower on a hot day when the temperature is 33.4 degrees Celsius?
a 50 cm long solenoid has 100 turns of wire and carries a current of .95 A. it has a ferromagnetic core completely filling its interior where the field is .71 T. find the relative magnetic permeability of the material
A ball of mass .5 kg moves perpendicular to the door by the speed of 10 m/s. The door has a mass of 3 kg and a width of 2 m and is hinged about one end. The moment of inertia of a bar rotated about its end is 1/3 Ml^2. The ball strikes the end of the..
A ballplayer standing at home plate hits a baseball that iscaught by another player at the same height above the ground fromwhich it was hit. How high will the ball rise
The water comes out of the heads at an angle of 35o to the horizontal and covers a radius of 7.0 m. What is the velocity of the water coming out of each sprinkler head
In a crude model of a rotating diatomic molecule of chlorine (Cl2), the two Cl atoms are 2.00 multiplied by 10-10 m apart, What is the rotational kinetic energy of one molecule of Cl2
The potential difference across a resting neuron in the human body is about 105.0 mV, How much power does the neuron release
A box of books weighing 397 N is shoved across the floor by a force of 543 N exerted downward at an angle of 37 degrees below the horizontal.
A shopper in a supermarket pushes a cart with a force of 37 N directed at an angle of 25° below the horizontal. What is the net work done on the cart
The balance wheel of a watch oscillates with an angular amplitude of n-rad and a period of 0.10 s. Find the maximum angular speed of the wheel
A child in a boat throws a 5.20 kg package out horizontally with a speed of 10.0 m/s. Calculate the velocity of the boat immediately after, assuming it was initially at rest. The mass of the child is 26.0 kg and that of the boat is 40kg.
A car with mass of 1000.0 kg accelerates from 0 m/s to 40.0 m/s in 10.0 s. Ignore air resistance. estimate the average mechanical power output of the engine
What is the refractive index of glass when free space light falls on the glass with incident angle 45 and pass through the glass with refracted angle 30?
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