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Problem: In a test race, an automobile must complete a 10 km run in 4 minutes. If the car goes at 36 m/s for the first 5 km,
Part A: What must be its speed for the second 5 km?
Rework your solution from the beginning and check each step carefully.
A boy shoves his stuffed toy zebra down a frictionless chute, starting at a height of 1.49 m above the bottom of the chute and with an initial speed of 1.55 m/s. How far from the bottom of the chute does the toy zebra come to rest
You have 11 m of 1.9 mm diameter copper wire and a battery capable of passing 12 A through the wire. What magnetic field strength could you obtain inside a 2.0 cm diameter solenoid wound with the wire asclosely spaced as possible?
A sound wave traveling at 341m/s is emitted by foghorn of a tugboat. An echo is heard 3.30s later.
A certain spring can withstand a maximum tension of 9.0 lbwithout breaking. What is the speed of the stone as the spring breaks
The distance between the plates of a parallel plate capacitor with air between the plates is 9 mm. what is the new energy stored in the capacitor
You connect a number of identical light bulbs to a flash-light battery. a) What happens to the brightness of each bulb as more bulbs are added to the circuit if you connect them (i) in series and (ii) in parallel?
A 1.4 kg object at x = 2.00 m, y = 3.10 m moves at an angle 45° north of east. Compute the magnitude of the object's angular momentum about the origin.
A 47 kg skier starts from rest at height H = 19 m above the end of a ski-jump ramp as shown. as theskier leaves the ramp, his velocity makes an angle theta= 29 above the horizontal. neglect air resistance and friction. calculate the speed of the s..
Two particles having equal signed charges of 12nc are placedat two of the vertices of an equilateral triangle, What is the magnitude of the electrical field at the third vertex of the triangle
A 51.0-kg woman wearing high-heeled shoes is invited into a home in which the kitchen has vinyl floor covering. If the woman balances on one heel, what pressure does she exert on the floor
The wavelength of the waves in seawater is 4.80 x10-4 m. While the generator is directed downward, an echo reflected from the ocean floor is received 10s later.
An alpha particle is a nucleus of helium. It has twice the charge and four times the mass of the proton. When they were very far away from each other, but headed toward directly each other, a proton and an alpha particle each had an initial speed ..
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