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Question1
A puck of mass m1 = 76.0 g and radius r1 = 4.40 cm glides across an air table at a speed of = 1.50 m/s. It makes a glancing collision with a second puck of radius r2 = 6.00 cm and mass m2 = 140 g (initially at rest) such that their rims just touch. Since their rims are coated with instant-acting glue, pucks stick together and rotate after the collision.
(a) What is magnitude of the angular momentum of the system relative to the center of mass?
(b) What is an angular speed about the center of mass?
Question2
A 50.0-kg stunt pilot who has been diving her airplane vertically pulls out of the dive by changing her course to a circle in a vertical plane. a) If plane's speed at the lowest point of the circle is 95.0m/s, what is the least radius of the circle for the acceleration at this point not to exceed 4.00g? b) What is apparent weight of the pilot at the lowest point of the pullout?
Plot B lamda for this temp, using linear axes. Either graphically or numerically, estimate the fraction of the total emission from an incandescent light bulb that falls within the visible portion of the spectrum
A 1.5V battery has an internal resistance of .5 Ohm. If a light bulb with cold resistance of 10 Ohm is placed in a series with the battery, how much current initially flows in the circuit
The escape speed from a very small asteroid is only 26 m/s. If you throw a rock away from the asteroid at a speed of 39 m/s, what will be its final speed.
Three wires are arranged parallel to each other. Wire 1 sits at x = -2.5m with a current I1 = 3.0A directed into the page, Determine the location of wire 3 and the direction of the current such that the net magnetic force acting on wire 3 is zero
Children are playing on a vertical slide that is 10m high. If humps were added to this slide, but the height remained constant, how would this effect the final speed
A circuit consists of two 2.37?k? resistors in series with an ideal 9.00?V battery. Calculate the current flowing through each resistor
an air wedge is formed between two glass plates separated at one end by a very fine wire. calculate the radius of the wire
find out the magnitude of an acceleration
Two point charges totaling 7.00 µC exert a repulsive force of 0.100 N on one another when separated by 0.719 m. What is the charge on each? smallest charge largest charge (b) What is the charge on each if the force is attractive? smallest charge l..
The graph shows the component of a force acting on an object, Find the work done by the force over the specified intervals of displacement
A thermos contains 141 cm3 of coffee at 92.9 °C. To cool the coffee, you drop two 10.4-g ice cubes into the thermos. What is the final temperature of the coffee
A child on a sled starts from rest at the top of a 15.0 degree slope. If the trip to the bottom takes 15.2s, how long is the slope
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