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A 2-kg sled sliding freely in the positive direction on an icy surface experiences a 4-N frictional force exerted by the ice and an air-resistive force of 0.6 N. Round the final answers to one decimal place.
a. What is the net force acting on the sled?
b. What is the acceleration of the sled?
You attach a meter stick to an oak tree, such that the top of the meter stick is 2.67 meters above the ground. how high above the ground was the acorn before it fell
Consider a string with length 36 cm. The two ends are attached to the ceiling, separated by distance 30.0 cm. Determine the tension in the right segment of the string
A simple series circuit consists of a 120 ohm resistor, a 23.0V battery, a switch, and a 1.80 pF parallel-plate capacitor (initially uncharged) with plates 5.0 mm apart. find the maximum electric flux through the capacitor
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A 6500 kg helicopter accelerates upward at 0.59 m/s2 while lifting a 1210 kg car. What is the lift force exerted by the air on the rotors?
While exploring a cave, a spelunker starts at the entrance and moves the following distances: 75.0 m north, 250 m east, 170 m at an angle 30.0° north of east, and 150 m south. Discover the resultant displacement from the cave entrance and the directi..
A 4.5 volt battery is connected to a buld with a resistance of 1.6 ohm. How many electrons leave the battery per second
Calculate the work done by 100g of water as it freezes at 273K and bursts a water pipe that exerts a n opposing pressure at 1070 atm.
You fly your 15 m spaceship, parallel to the ship's length with a speed of c/3 to your friend. How long is your spaceship as observed by your friend
A 3gm bullet with a speed of 300m/sec is fired on a 400gm block initially at rest. The bullet passes through the block and as a result the block begins to move with a speed of 1.5m/sec in the original direction of the bullet. Find the speed of the..
the driver sees a child standing on the road. She takes .80 s to react, then steps on the brakes and slows at 6.5 m/s squared. Explain how far does the car go before it stops?
A straight, non conducting plastic wire 7.50cm long carries a charge density of 130nC/m distributed uniformly along its length. It is lying on a horizontal tabletop. Discover the magnitude and direction of the electric field this wire produces at a p..
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