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A 2.0 kg block is kicked up a wooden ramp that is inclined at a 30? angle to the horizontal. The block's initial speed is 11.5m/s . The coefficient of kinetic friction is ?k=.200.
What vertical height does the block reach above its starting point?
What speed does it have when it slides back down to its starting point?
How long does the entire up and down trip take?
A parallel-plate capacitor has 1.65 cm2 plates that are separated by 4.17 mm with air between them, how much energy does it store
An electron in a circular path perpendicular to a constant magnetic field with a magnitude of 1.00mT. The angular momentum of the electron about the center of the circle is 3.000*10^-25. Evaluate the radius of the circular path
Three +3.0-?C point charges are at the three corners of a square of side 0.50 m. Find the magnitude of the electric field at the center of the square
A galvanometer with a full-scale sensitivity of 800uA and a coil resistance of 54 ohms is to be used to build an ammeter designed to read 6.0A at full scale
Consider a theoretical head-on collision between two carts of equal mass and equal speed. What is the total momentum after the collision
Explain what are the priorities: more charges or more energy stored in batteries used to propel cars or even light planes. What are the current limitations
A doorway acts as a single slit for light that passes through it, but a doorway is much larger than the wavelength of visible light, Estimate the width of the doorway
A proton accelerates from rest through 1500 volts. the proton then enters a region of space where the magnetic field is 0.3 tesla (and this field is perpendicular to the velocity). calculate the radius of the resulting circular motion?
A 17-cm-long microscope has an eyepiece with a focal length of 3.1cm and an objective with a focal length of 0.35cm. What is the approximate magnification
Two carts collide in a perfectly elastic collision. Cart A has a mass of 1.2 kg and an initial velocity of 0.13 m/s. What is the final speed of each cart
A 65ohms resistor, an 8.0uF capacitor, and a 35 mH inductor are connected in a series in an ac circuit. Calculate the impedance for a source frequency of 300Hz
Mr. Physics drops a rock down a 250-meter deep well. Upon impact with the bottom of the well a short burst of sound is produced with a frequency of 250 Hz. How long after he drops the rock does he hear it hit bottom of the well.
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