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A 0.060-kg cart has a spherical dome that is charged to +1.0 x 10-5 C. The cart is at the top of a 2.5 -m-long inclined plane that makes a 30? angle with the horizontal. The cart and the plane are placed in an upward-pointing vertical uniform 3700-N/C E→ field.
How long will it take the cart to reach the bottom of the plane?
A model rocket flies upward at constant acceleration, and undergoes a displacement of 15.0 m during its first 0.25s of travel. What was its speed at the end of the fist
a 75kg astronaut is holding a 5kg ball while in deepspace. he wants to use the ball to travel backwards towards his
Two equal (in all respects) explosives produce a sound level of 102 dB when exploded simultaneously at a certain place. Determine what is the intensity of this single sound source
Consider a capacitor consisting of two identical metal plates parallel to each other. Each plate has an area of 140 cm2 and they are separated by 2.7 mm. Find the capacitance of the capacitor
A capacitor with an initial potential difference of 75 V isdischarged through a resistor when a switch between them is closedat t = 0. At t = 5.0 s, the potential differenceacross the capacitor is 1.70 V.
Light with a wavelength of 650 nm passes through a slit 7.56 µm wide, Find the linear distance on the screen from the central bright fringe to the third dark fringe on either side
A recent study found that electrons having energies between 3.25 eV and 20.3 eV can cause breaks in a DNA molecule, even though they do not ionize the molecule. If a single photon were to transfer its energy to a single electron, what range of lig..
A 30.0- kg child swings on a playground swing 3.3 m long. What is the period of her motion, what is the period of the motion
There is a 15-kg block of ice that is cooled to -100( degrees Celsius ) and is then added to 8.00 kg of water in a 10-kg copper calirometer at a temperature of 25(degrees celsius). (specific heat of: water is 4186 J/kg(C), copper is 387 J /kg(C), ..
A radio tuner is built by connecting an L=0.41mH inductor and variable capacitor in series with an antenna. The driving voltage is provided by the radiowaves that pass through the antenna, and the total internal resistance of the circuit is R=1.2O..
A 50-gram ice cube at -30 degrees celcius is heated until 45g hasbecome water at 100 degree celcius and 5g has become steam at 100degree celcius, how much heat was added to accomplish this
In a capacitor, one side accumulates charge because the battery is putting charges on it. Explain how the other plate becomes charged. In addition, explain why, as a plate accumulates charge, it becomes harder and harder to put more charges onit.
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