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A ship moves 10.2km dueeast, and then 5.9km due north. What are the magnitude and the direction of the resultant displacement vector?
Explain how fast must the candy bar travel to have the same 106 joules in the form of kinetic energy?
A 51.0-g Super Ball traveling at 27.0 m/s bounces off a brick wall and rebounds at 21.5 m/s. what is the magnitude of the average acceleration of the ball during this time interval
A certain camera has f-numbers that range from 1.7 to 29. If the focal length of the lens is 57 mm, what is the range of aperture diameters for the camera
A 0.27 kg rock is thrown perpendicularly upward from the top of the cliff that is 32 m high. When it hits the ground at the base of cliff, the rock has a speed of 29 m/s. suppose that air resistance can be ignored, find out A) initial speed of the ro..
A rigid tank contains 1.30 moles of an ideal gas. Determine the number of moles of gas that should be withdrawn from the tank to lower the pressure of the gas from 24.5 atm to 4.40 atm. Assume volume of the tank and the temperature of the gas rema..
A proton moves perpendicularly to a uniform magnetic ?eld B with a speed of 1.9 × 10 ^7 m/s and experiences an acceleration of 8 × 10 12 m/s 2 in the positive x direction when its velocity is in the positive z direction. The mass of a proton is 1...
Consider 0.8 grams of air (which may be assumed to be an ideal gas) at 295 K and 1.5 bar trapped in a rigid tank. An electrical heater is operated for 30 seconds. During this time the voltage across the heater is 12 V and 0.6 amps pass through the..
A two-slit pattern is viewed on a screen 1.25 m from the slits. If the two third-order minima are 29.0 cm apart, what is the width of the central bright fringe? (This is the distance between the nearest minima which bracket the central fringe.)
The energy of sunlight hitting the earth is about 1400 W/m^2 (where 1 W= 1 J/s) in mid day. Given that the sun is about 150 million km from the earth, estimate the total output of the sun
The pressure of a garden hose is 2 atmospheres. If the cross-sectional area of the hose is 4 cm^2 and the nozzle output area is .4cm^, How fast does the water leave the hose
A certain laser emits red light in a narrow band of wavelengths centered at 533.0 nm, What is the corresponding "frequency width" for the emission
A satellite moves in a circular earth orbit that has a radius of 8.38 x 106 m. A model airplane is flying on a 22.8-m guideline in a horizontal circle. The guideline is nearly parallel to the ground. Find the speed of the plane such that the plane an..
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