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Two point charges are placed on the y axis as follows: charge q1= -1.50 nC at y= -.600m, and charge q2= +3.20 nC at the origin (y=0). What is the net force (magnitude and DIRECTION) exerted by these two charges on a third charge q3= +5.00 nC located at y= -.400m.
A standard 100 W (120 V) lightbulb contains a 9.90cm -long tungsten filament. The high-temperature resistivity of tungsten, What is the diameter of the filament
A runner accelerates to a velocity of 5.36 m/s due west in 3 s. His average acceleration is 0.64 m/s2, also directed due west. What was his velocity when he began accelerating
Explain by how much upward force does each support exert on the beam? (Enter your answer for support 1 first, followed by your answer for support 2.)
A man holds a 190 N ball in his hand, with the forearm horizontal. Find magnitude and direction of the force applied by the upper arm bone to the forearm at the elbow joint
You drive on Interstate 10 from San Antonio to Houston, half the time at 60 km/h and the other half at 105 km/h. On the way back you travel half the distance at 60 km/h and the other half at 105 km/h.
The coefficient of kinetic friction between each brake pad and the rim is μk = 0.85. What is the magnitude of normal force that each brake pad applies to the rim.
A parallel plate capacitor has plates of area A and seperation of d and is charged to a potential difference of V.Derive expressions for the new potential difference
Sally travels by car from one city to another. She drives for 30.0 min at 69.0 km/h, 37.0 min at 34 km/h, and 54min at 74.0 km/h and she spends 13.0 min eating lunch and buying gas.
Two 7.0mm×7.0mm electrodes with a 0.10-mm-thicksheet of Mylar between them are attached to a 7.0Vbattery, What is the electric field before and after the Mylar is withdrawn
A hoop and a disk, both of 0.46- m radius and 3.0- kg mass, are released from the top of an inclined plane 3.2 m high and 7.0 m long. What is the speed of the hoop
Consider diving 30.0m below the surface of the ocean (density 1.03 grams/cc). what is the gauge pressure at that depth
Ice at -10.0 °C and steam at 118 °C are brought together at atmospheric pressure in a perfectly insulated container. find the ratio of the mass of steam to the mass of ice
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