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A three-picket fence (mass = 406 grams) on a glider is pulled by a constant force along a horizontal frictionless surface. The fence starts from rest 12.0 cm away from a photogate. Pickets and gaps are 2.0 cm wide each. Position is in centimeters and time is in seconds. Find the magnitude of the constant force in Newtons.
Find the mass flow rate in through the vent in question #1 using the following well-known relationship for the mass flow into an opening:
describe why pluto was demoted from the planet status. be sure to describe what class of planetoid it is considered now
Using the capacitance determined in part (a), calculate the current in the circuit 7.4 ms after the switch is closed. Suppose that the capacitor is uncharged initially and that the emf of the battery is 9.0 V
If you were on a spaceship traveling a 0.5c away from a star, at what speed would the starlight pass you
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
A man pushes a wooden crate on wooden floor. The direction of the force is 30o downward relative to the horizontal, How much force does he use in order to maintain a constant speed
A car is driven east for a distance of 49 km, then north for 23 km, and then in a direction 28° east of north for 28 km. FIND the magnitude (in km) of the car's total displacement from its starting point
A bucket of mass 2.00 kg is whirled in a vertical circle of radius 1.10 m. At the lowest point of its motion the tension in the rope supporting the bucket is 25.0 N. Find the speed of the bucket
In what direction should the pilot travel in this direct flight. Find out the distance she walks.
500 mL of a liquid with a coefficient of volume expansion of 205x10-6/oC fills to the brim a container that has a coefficient of volume expansion of 105x10-6/oC. how much of the liquid will overflow the container
A solid uniform marble and a block of ice, each with the same mass, start from rest at the same height above the bottom of a hill and move down it. Find the speed of each of these objects when it reaches the bottom of the hill
A duck is floating on a lake with 21% of its volume beneath the water. What is the average density of the duck
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