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One rider on a carousel sits on a zebra near the edge of the carousel. A second rider sits on a camel half the distance from the centre as the first rider. Which experiences the greater centripetal acceleration? Explain your answer.
Sam, whose mass is 75 kg, takes off across level snow on his jet-powered skis. The skis have a thrust of 200 N and a coefficient of kinetic friction on snow of 0.1. Unfortunately, the skis run out of fuel after only 10 s. What is Sam's top speed? ..
A sailboat leaves a harbor and sails 1.80 km in the direction 65 degrees sounth of east, the boath then sails 1.1 km in the direction 15 degrees north of east. the trip takes 15 minutes. what is the magnitude and direction.
a person pushes a 24.5-kg shopping cart at a constant velocity for a distance of 39.8 m on a flat horizontal surface.
An ensemble of masers orbit the center of an edge-on spiral galaxy at a particular radius, and are observed at a wavelength of 1.855x10-1 m on the side of the galaxy approaching us, and at 1.863x10-1 m on the side receding from us. What is the orb..
At age forty, a man requires contact lenses (f = 58.0 cm) to read a book held 25.0 cm from his eyes. At age forty-five, he finds that while wearing these contacts he must now hold a book 29.0 cm from his eyes.
Two stationary point charges of 5.00 nano coulombsand 2.00 nano coulombs are separated by a distance of 60.0 cm. What is the electric potential energy of the electron
Write the nuclear equation for decay - Calculate the binding energy per nucleon and How many nuclei are initial present in a 25.0 mg sample?
65kW is to arrive in a town over two 0.100Ω lines. Estimate how much power is saved if the voltage is steped from120V to 1200V and then downed downed again rather than transmittingat 120V
Two boxes are connected by a cord running over a pulley, Calculate the acceleration of the system
The coil of wire in a galvanometer has a resistance of RC = 64.0 . The galvanometer exhibits a full-scale deflection when the current through it is 0.290 mA. What is the resistance of this resistor
calculate the electric field at the center of a square 50.6 cm on a side if one corner is occupied by a 43.0 microc
A rectangular aluminum plate has an area of 0.34 m2 at 19°C. If it is heated until its area has increased by 4.1 10-6 m2, what is the final temperature of the plate
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