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Two people pull as hard as they can on horizontal ropes attached to a boat that has a mass of 200 kg. If they pull in the same direction, the boat has an acceleration of 1.59 m/s2 to the right. If they pull in opposite directions, the boat has an acceleration of 0.509 m/s2 to the left. What is the magnitude of the force each person exerts on the boat? Disregard any other horizontal forces on the boat. smaller force N larger force N
A tractor pulls a sled of mass M = 1375 kg across level ground. The coefficient of kinetic friction between the sled and the ground is ?k = 0.605, What magnitude of tension in the rope is necessary to move the sled horizontally
shallow glass dish whose width w is 4.40 cm. When an observer's eye is placed as shown, the observer sees the edge of the bottom of the empty dish, Find the height h of the dish
find out the initial velocity of the ball. How fast will the electron be moving when it is very far away.
A 260 wooden raft floats on a lake. When an 80 man stands on the raft, it sinks 5.0 deeper into the water. When he steps off, the raft vibrates for a while. What is the frequency of vibration.
A small button placed on a horizontal rotating platform with diameter 0.326m will revolve with the platform when it is brought up to a rotational speed of 43.0rev/min, How far from the axis can the button be placed, without slipping,
Suppose you wish to make a solenoid whose self-inductance is 1.6 mH. How many turns of wire are needed
Megan is sitting (at rest) at the top of a slide that is inclined 25o with respect to the horizontal. how much does the thermal energy of the system increase during Megan's trip down the slide
Light enters the aperture of your AN/PVS-15 Night Vision Goggles at an incident angle of 32 degrees, What is the index of refraction of your objective lens
A quantity of ideal gas at 10.0°C and 100 kPa occupies a volume of 1.20 m3. how much volume does the gas occupy
A cylinder of brass has a diameter of 3mm and a length of 100mm. What is the stress in the cylinder
You (height of your eyes above the water, 1.75) are standing 2.00 from the edge of a 2.50--deep swimming pool. You notice that you can barely see your cell phone, that went missing a few minutes before, on the bottom of the pool.
A liquid of density 1.13 × 103 kg/m3 flows steadily through a pipe of varying diameter and height. At location 1 along the pipe the flow speed is 9.89 m/s and the pipe diameter is 10.1 cm
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