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Problem: A motorist travels 85 km at 110km/h, and 50km at 85km/h.
Part A: What is the average speed for the trip?
I don't understand how to get the answer. Can you please help me with this problem and express your answer using three significant figures.
A helicopter winches up an injured man from a boat. The man plus equipment has a mass of 111 kilogram. find the power expended by the helicopter's winch motor
A bird stands on a dc electric transmission line carrying 3300A (Figure 1) . The line has 2.7×10?5? resistance per meter, and the bird's feet are 3.5cm apart
A series RC circuit is driven by an alternating voltage source at a frequency of 103 Hz. By what phase angle does the capacitor voltage lead (positive) or lag (negative) relative to the resistor voltage
A 4.90-g lead bullet traveling at 550 m/s is stopped by a large tree, what is the increase in temperature of the bullet
sunspots vary in number as a function of time exhibiting an approximately 11 year cycle. galileo made the first
Put A 220 lb man presses the brakes with a force of 28 lbs/in2 to stop his car while traveling at a speed of 48 mi/hr. find the amount of deceleration experienced by him
An 85.1 kg base runner begins his slide into second base while moving at a speed of 5.9 m/s. The coefficient of kinetic friction between his clothes and ground is 0.68. He slides so that he comes to rest just as he reaches the base.
A hollow cylinder (hoop) is rolling on ahorizontal surface at speed v = 4.8 m/s when it reaches a12° incline. How long will it be on the incline before it arrives back atthe bottom
Calculate the magnitude of the linear momentum for a proton with mass 1.67 x 10-27 kilogram, moving with a speed of 5.55 x 106 m/s
question a weather balloon is designed to expand to a maximum radius of17m at its working altitude where the air
An electron is moving at a speed of 8.0 103 m/s in a circular path of radius of 2.0 cm inside a solenoid. Find the strength of the magnetic field inside the solenoid
A 5.95kg object is thrown 18.10m/s at a 30.00° angle andcollides head-on at its peak with a 14.5kg object fired at28.0° which is also at its peak. At what velocity was the14.5kg object fired
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