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Three blocks are in contact with each other on a frictionless horizontal surface as shown. A horizontal force of with a magnitude of F = 220 N is applied to block 1. The masses of the blocks are m1 = 2 kg, m2 = 7 kg and m3 = 10 kg. What is the acceleration of the blocks? What is the magnitude of the net force on the middle block? What is the horizontal component of the force of block 2 on block 3?
A 0.1kg ball is attached to a string and whirled around in a circle overhead, What is the maximum speed the ball can have when the radius of corcle is 1m
A small, 200g cart is moving at 1.60m/s on an air track when it collides with a larger, 2.00kg cart at rest. What is the speed of the large cart after the collision
You have a pulley 11.8 cm in diameter and with a mass of 1.6 kg. You get to wondering whether the pulley is uniform. What is the moment of inertia if the pulley is uniform
Two conductors are made of the same material and have the same length. Conductor A is a solid wire of diameter 1.2 mm, What is the resistance ratio RA/RB , measured between their ends
A 8.00?F parallel-plate capacitor with circular plates is connected to a 11.0V battery. How much charge would be on the plates if their separation were doubled while the capacitor remained connected to the battery
A lens which is 40.0 cm from an object forms an image of the object on a card 20.0 cm away. Determine what is the focal length of the lens? If the height of the image is .75 cm, what is the height of the object?
A small package rests on the horizontal dashboard of a car. If ?s = 0.302, what is the minimum acceleration of the car
A spherical concave lens has a focal length of 20cm, and an object is placed 15cm from the lens. estimate of the image distance and give image characteristics
A cube of ice is taken from the freezer at -8.4^circ C and positioned in a 114 g aluminium calorimeter filled with 322g of water at room temperature of 20.0 C. The final situation is observed to be all water at 15.0C.
Co-60 is often used as a radiation source in medicine. It has a half-life of 5.25 years. How long, after a new sample is delivered, would the activity have decreased to about 1/3 its original value.
An object is located 12.5 cm in front of a convex mirror, the image being 6.90 cm behind the mirror. How far in front of the mirror is the second object located
A common flashlight bulb is rated at 0.300 A and 2.60 V, what is the temperature of the filament when the bulb is on? Calculate in deg Celsius
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