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A fast-food restaurant uses a conveyor belt to send the burgers through a grilling machine. If the grilling machine is 1.1m long and the burgers require 2.5 min to cook, how fast must the conveyor belt travel? If the burgers are spaced 15cm apart, what is the rate of burger production (in burgers/min)?
An engine moves a boat throughthe water at a constant speed of 15 m/s. What power does the engine develop
An object is so = 2 m from the front side of a converging lens with focal length f1 = 1 m, Draw a ray diagram of the situation, Where is the final image now, What is the new magnification
A small motor draws a current of 1.75 A from a 120.0 V line. It costs $35.81 to operate the motor for 4.00 hrs at $0.0600 /kWh, What is the power output of the motor
1040 carbon steel is a medium carbon steel. determine the applied stress at failure for a crack the length of 5 mm
a 200 g copper bowl contains 170 g of water, both at 20.0°C. A very hot 420 g copper cylinder is dropped into the water. How much energy is transferred to the water as heat.
An electric blanket is connected to a 120-V outlet and consumes 110 W of power. What is the resistance of the heater wire in the blanket
You drive on Interstate 10 from San Antonio to Houston, half the time at 51 km/h and the other half at 98 km/h. What is your average speed from Houston back to San Antonio
A 100-kg streetlight is supported equally by two ropes. One rope pulls up and to the right, 40° above the horizontal; What is the tension in each rope
assume a perfectly elastic collision between a 916g bat and a 145 g baseball. Find the bat's speed before and after the collision
A hockey puck is swung at the end of a very slight 30 cm long string in a horizontal circle. what is the tension force supplied by the string
In a football game, a receiver is standing still, having just caught a pass. Before he can move, a tackler, running at a velocity of +4.8 m/s, grabs him. find the mass of the receiver
two forces act on a14 kg object. the first force has a magnitude of 70 N and is directed 28 north of east. what is the acceleration of the object resulting from application of these two forces to the object
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