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A U-shaped tube is connected to a box at one end and open to the air at the other end. The box is full of gas at pressure , and the tube is filled with mercury of density 1.36×104 . When the liquid in the tube reaches static equilibrium, the mercury column is = 15.5 high in the left arm and = 6.00 high in the right arm, as shown in the figure. What is the gas pressure inside the box?
Some charge is placed on a capacitor with C1 = 26 ?F so that ?V = 15 V. What is the voltage across the two capacitors
Under controlled darkened conditions in the laboratory, a light receptor cell on the retina of a person's eye can detect a single photon of light of wavelength 503nm, What is the intensity in (W/m^2) delivered to a rod
Two point charges, +3.09 µC and -6.05 µC, are separated by 1.33 m. What is the electric potential midway between them?
A dragster drives a quarter mile (402 m) at a constant rate of acceleration, starting from rest and finishing the race at a final speed of 450 km/hr. what average power was developed by the engine
A 52.6-kg skateboarder starts out with a speed of 2.16 m/s. He does 89.2 J of work on himself by pushing with his feet against the ground. Calculate the change (PEf - PE0) in the gravitational potential energy
In her bathroom, Mindy has an overhead heater that consists of a coiled wire made of nichrome that gets hot when turned on. What current does the wire carry
A 1.1-pF parallel plate capacitor has a potential difference of 12.0 V across it. The plates are 4.5 mm apart, and the space between them contains air. obtain the charge on the capacitor
When the afternoon Sun reaches an angle of 27.0° above the horizon, sunlight ceases to illuminate the bottom of the tank. Evaluate how deep is the tank?
A 4 kg model rocket is launched, expelling 40.00 g of burned fuel from its exhaust at a speed of 550m/s. What is the velocity of the rocket after fuel has burned? Hint: Ignore the external forces of gravity and air resistance.
Monochromatic light (lambda = 670 nm) is incident on a single slit and forms a diffraction patter on a screen 95 cm away. what is the separation between the first-order minima
The electric field in a region of space is oriented along the positive y axis. A circle of radius R is placed in xz-plane. The flux of the electric field by this circle is Φ. The same electric field passing through a second circle of radius 2R parall..
A car is being pulled out of the mud by two forces that are applied by the two ropes shown in the drawing. The dashed line in the drawing bisects the 30.0° angle.
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