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An automobile is traveling directly west for 16 kilometer west at 90km/h, then it travels directly south for 8 kilometer at 80km/h, then it travels directly SE for 34 kilometer at100 km/h. Suppose it does not slow or stop down when changing direction,
a) Find what is the change in velocity for those trip?
b) Find what is its average acceleration?
A piece of copper wire has a resistance per unit length of 6.45 10-3 ?/m, Find the magnetic field strength at the center of the coil
An airplane at a velocity of 650 miles/hour in a region where the earth's magnetic field is 5x10^-5 Tesla and is nearly vertical. Whats the voltage induced between the tips of the wings of anairplane(70m apart)?
The maximum angular magnification of a magnifying glass is 12.0 when a person uses it who has a near point that is 25.0 cm from his eyes. Obtain the focal length of the objective
Two forces, F? 1 and F? 2, act at a point. F? 1 has a magnitude of 8.20N and is directed at an angle of 60.0, What is the x and component of the resultant force
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 7.60 m/s at an angle of 18.0° below the horizontal. How far horizontally from the base of the building does the ball strike the ground
A dielectric-filled parallel-plate capacitor has plate area = 15.0 , plate separation = 5.00 and dielectric constant = 5.00. The capacitor is connected to a battery that creates a constant voltage = 5.00 . Throughout the problem, use = 8.85×10-12 ..
Lasers are classified according to the eye-damage danger they pose. Find the peak electric field in the laser beam
1. explain why at least two photons are created during pair annihilation.2. how does the wavelength of a photon
bernoullis equation only yields perfect predictions if the following conditions existi- the liquid is inviscid that is
An FM radio station broadcasts electromagnetic waves at a frequency of 550 kHz. Calculate the wavelength of the waves.
An ice cube slides from rest without friction down a long inclined ramp that makes an angle of 20.0o with the horizontal. What is the speed of the cube
Water moves through a constricted pipe in steady, ideal flow. At the lower point shown in the figure below, the pressure is 1.65 105 Pa, Find the volume flow rate through the pipe
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