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A car is driven 215 kilometer west and then 85 kilometer southwest. Determine the displacement of the car from the point of origin (magnitude and direction)?
I place a 4cm-high object 10cm in front of a 10cm focal length concave lens. How tall is the image
a 120 g copper calorimeter cup contains 220 cm3 of water and 35 g of ice all in thermal equilibrium. a 185 g piece of
Assume that none of the alpha particles bounced back from the sheet, meaning that the alpha particles either were captured by the shielding or penetrated completely through the shielding.
A rocket is fired in deep space, where gravity is negligible. In the first second it ejects 1/160 of its mass as exhaust gas and has an acceleration of 15.3 m/s^2. find the speed (v_gas) of the exhaust gas relative to the rocket
A 81.0kN spaceship comes in for a vertical landing. From an initial speed of 1.00 km/s, it comes to rest in 2.10min with uniform acceleration. What braking force must its rockets provide
R 134a flows at steady state through a horizontal pipe havingan inside diameter of 4 cm, entering as saturated vapor at -8degrees C with a mass flow rate of 17 kg/'min. Refrigerant vaporexits at a pressure of 2 bar.
Light, which consists of linearly polarized and unpolarized components, is incident on a polarizing sheet.
an electron is located on the x axis at x0 -9.89 times 10-6 m. find the magnitude and direction of the electric field
a small object is 10 cm to the left of a converging lens f 5 cm and a second diverging lens f -3.3 cm is 5.8 cm to
In a X-ray tube, electrons are accelerated through a potential of 10, 000V. How much energy does the accelerated electron have
When a hammer strikes a nail, it is compressed along its length. Suppose that a steel nail 8.00 cm long, What average force was exerted on the nail by the hammer
q1. you bring a 350-g wrench into the house from your car. the house is 15 c warmer than the car and it takes 2.52 kj
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