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Q. A Mercedes-Benz 300SL (m = 1800 kg) is parked on a road that rises 20° above the horizontal.
What is the magnitude of the normal force?
Q. A positively charged ball hanging from a non conducting string is brought near a non conducting object.Based on the behavior of the ball-string combination,the ball is seen to be attracted to the object.From this experiment,it is not possible to determine whether the object is negatively charged or neutral.Why not? What additional experiment could help you decide between these two possibilities?
At a waterpark, sleds with riders are sent along a slippery,horizontal surface by release of a large, compressed spring.The spring with a force constant k= 3700 N/m and negligible mass rests on the frictionless horizontal surface.
assume a planet had a density that varied with radius according to the equation, ρ =A/r, where A is some constant. Determine a formula that gives the central pressure for this kind of planet.
Two identical spacecraft are to be accelerated by rockets. The first rocket fires with a force 4 times as large as that of the second rocket. The acceleration of the first rocket is how many times as vast as the acceleration of the second rocket.
Water falls without splashing at the rate of 0.210 L/s from a height of 3.90m into a 0.590 kg bucket on a scale. If the bucket is originally empty, what does the scale read 4.00 s after water starts to accumulate in it.
It is 155cm from your eyes to your toes. You're standing 190cm in front of the tall mirror. How far is it from your eyes to the image of your toes.
Two lenses that are L = 42 cm apart are used to form an image, as shown in figure. Find the distance from lens and magnification of the image.
Runner A is at first 5.4 km west of a flagpole and is running with a constant velocity of 2.6 km/h due east. Runner B is initially 3.0 km east of the flagpole and is running with the constant velocity of 8.8 km/h due west. What would be the distance ..
What's the advantage of launching space vehicles from high flying aircraft in place of from the ground.
How much power must you exert to horizontally drag a 20.0 kg table 14.0 m across a brick floor in 40.0 s at constant velocity, assuming the coefficient of kinetic friction between table and floor is 0.550.
What is magnitude of the angular momentum
If the parachutist comes to rest with constant acceleration over a distance of 0.610 m, what force does the ground exerts on her.
A frictionless pulley has the shape of a uniform solid disk of mass 6 and radius 25 . A 1.90 stone is attached to a very light wire that is wrapped around the rim of the pulley.
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