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Displacement d1 is in the yz plane 58.4° from the positive direction of the y axis, has a positive z component of 5.99 m. Displacement d2 is in the xz plane 27.6o from the positive direction of the x axis, has a positive z component, and has magnitude 1.86 m. What are:
i) d1• d2
ii) d1× d2 ( x, y and z components)
iii) the angle between d1 and d2
A hunter aims directly at a target (on the same level) 140 m away.
You are driving 110 miles to Columbus from Cincinnati. The first 100 miles you drive a good speed of 75mi/h . Unfortunately, you hit a traffic jam the last 10 miles where at least you move a constant 8.00mi/h .
what is the electric force between the proton and electron inside of a hydrogen atom? What must the speed of the electron be? Radius=0.47 x 10^-9.
Explain the construction of a electromagnetic velocity sensor and explain its working. In a bike speedometer the wheel diameter is 80cm what is the frequency of velocity sensor, which gives 1 pulse per rotation of wheel at a speed of 80Km/H?
Light from a He-Ne laser (= 632.8) strikes a pair of slits at normal incidence, forming a double-slit interference pattern on a screen located 1.10 from the slits. The figure shows the interference pattern observed on the screen.
Sherlock Holmes examines a clue by holding his magnifying glass (with a focal length of 15.0 cm) 10.0 cm away from an object. Find the image distance and the magnification. explain the image that he observes.
Motor M draws in the cable with an acceleration of 4 ft/s^2, measured relative to the 200 lb mine car. Determine the acceleration of the car and the tension in the cable. avoid the mass of the pulleys.
A uniform solid disk with a mass of 28.3 kg and a radius of 0.514 m is free to rotate about a frictionless axle. Forces of 90.0 N and 125 N are applied to the disk, as drawing illustrates.
This is accomplished using two small rockets, each with 150-N thrust, that are mounted on the rim of the station.
A box is hanging from a chain having a mass of 60 kg. The box has a mass of 78 kg. Find the tension in the top of chain and the bottom of the chain.
If an electric field strength greater than 3.88E+6 N/C causes the air to break down and conduct charge (lightning), what is the maximum charge the cloud can hold
Assuming you can't use the electric heater, you put 0.2kg of water at 20(C) in a thermous. If you move the water up and down a height 10cm twice/second, how long must you shake the water to raise the temperature to 100(C)?
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