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Two rectangular blocks are stacked on a table. The lower block has a mass of 38.6 kg and upper block has a mass of 3.40 kg. The coefficient of kinetic friction among the lower block and the table is 0.260. The coefficient of static friction among the blocks is 0.551. A string is attached to the lower block and an external force −"F is applied horizontally, pulling on the string. (a) What is the maximum force that can be applied to the string without having the upper block slide off? (b) If a force of magnitude 500N is applied, at what angle above the horizontal should it be directed in order for the upper block to remain stationary by respect to the lower block?
two shuffleboard disks of equal mass one orange and the other yellow are involved in a perfectly elastic glancing
A generator with an rms voltage of 150V is connected in series to a resistor 3.25 kilo-ohm and a capacitor 3.50 microfarad. find the average power consumed by this circuit
a suppose that a detector in the hubble space telescope was capable of detecting visible light in the wavelength range
A 0.2 object is swung in a vertical circular path on a string 0.1 m long. The acceleration of gravity is 9.8 m/s^2. If a constant speed of 4.07 m/s is maintained, what is hte tension in string when the object is at the top of the circle? Answer in..
question a large aquarium of height 5.98 m is filled with fresh water to a depth of d 2.40 m. one wall of the aquarium
A woman holds a tube of lipstick 3.5 cm from a spherical mirror and notices that the image of the tube is upright and one third its normal size. (a) Determine the position of the image. Is it in front of or behind the mirror? (Use a negative number b..
an electron moves in a circular path perpendicular to a magnetic field of magnitude 0.255 t. if the kinetic energy of
A rope is wrapped around a wheel of radius R=2.0 meters. The wheel is mounted with frictionless bearings on an axle through its center. What is the moment of inertia of the wheel
An airplane is flying with a velocity of 89.0 at an angle of 18.0 above the horizontal. When the plane is the distance 112 directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. How far from the dog wo..
A uniform 8.25m , 1750 kg beam is hinged to a wall and supported by a thin cable attached 2.00m from the free end of the beam, How hard does the beam push inward on the wall
The average depth of Earth's oceans is 2.236 mi. Suppose 68% of the earth is covered in water and that the population of the earth is 6.33 billion. (a) How much water mass on the surface of earth is there per person and (b) to help visualize it, w..
An 1100 kg airplane starts from rest; 7.1s later it reaches its takeoff speed of 40m/s. What is the average acceleration of the airplane during this time?
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