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Elm Street has a pronounced dip at the bottom of a steep hill before going back uphill on the other side. Your science teacher has asked everyone in the class to measure the radius of curvature of the dip. Some of your classmates are using surveying equipment, but you decide to base your measurement on what you've learned in physics. To do so, you sit on a spring scale, drive through the dip at different speeds, and for each speed record the scale's reading as you pass through the bottom of the dip. Your data are as follows. Speeds are 5, 10, 15, 20, 25 (in m/s) and Scale readings 599, 625, 674, 756, 834 (in N). Sitting on the scale while the car is parked gives a reading of 588 N. Analyze your data, using a graph, to determine the dip's radius of curvature.
A cube has sides of length L=0.300m. It is placed with one corner at the origin. Find the total electric charge inside the cube
A fish in a flat-sided aquarium sees a can of fish food on the counter. What is the actual distance between the can and the aquarium
Two metal spheres, each of mass 20 g and initially at rest, are dropped from a height of 10 m in an evacuated chamber. Find the difference in final speeds of the two spheres
business equipment for a $5,000 loss, stock investment for a $7,000 loss, and her principal residence for a $16,000 loss. Presuming adequate income, explain how much of these losses may Joan claim on her 2011 return?
a revolving car wheel has a radius of 15m and a mass of 3 X 10^4 kg. what torque needs to be applied to stop the car wheel in 15 sec
A car travels at a constant speed around a circular track whose radius is 2.6 km. compute the magnitude of the centripetal acceleration of the car
A current flow in a circle loop is clockwise. What is the magnetic field at the center of the loop point
A person having a mass of 59.1 kg stands before a flight of 30 stairs each of which is 25 cm high. How much work did he do in overcoming gravity
If 11.6 g of gold is deposited on the negative electrode of an electrolytic cell in a period of 3.03 hours, then what is the current through the cell during this period
question1the bumper car with mass m1 109 kg is moving to the right with a velocity of v1 4.9 ms. the second bumper
A steel rod of mass m and length L has the linear expansion coefficient X. It is standing vertically and supports a box of mass M on its top. what is the heat capacity of the rod for this process
A particle with a charge of -60.0 nC is placed at the center of a nonconducting spherical shell of inner radius 20.0 cm and outer radius 24.0 cm, Calculate the speed of the proton
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