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I'm trying to calculate the tension needed to pull a cable out of a phone at an angle of 45°. The problem is that the phone does not move on a flat platform, therefore i dont know how to incorporate the mass of the phone on the equations. the phone weights 130gram but during pulling, the phone does not move at all because is fixed to the table. Also, the cable is pull initially at 45° up by a force gauge that reads 20lbs of force before the cable is unplug from the phone. The angle does not vary too much from 45° because the cable is small and does not stretch much until is pulled from the phone. Does anyone know how do i go about calculate the actual force vector in the 45° angle?
Two small frogs simultaneously leap straight up from a lily pad. Frog A leaps with an initial velocity of 0.676 m/s, what is the position and velocity of the other frog
Two converging lenses, the first by focal length 10.0 cm and the second with focal length 20.0 cm, are separated by 40.0 cm. An object, 3.00 cm in height, is placed 30.0 cm in front of the first lens. Where is the final image formed?
a plastic bad is filled with nitrogen at atmospheric pressure and 18 degrees Celciuss. Assume that the mass of the bad is negligible and take the temperature of the outside air to be 0 degree Celcius, How large a volume of nitrogen (in M^3) is requ..
During recess, Maria, who has mass27.0 kg, hangs motionless on the monkey bars, with both handsgripping a horizontal bar. What is the tension in each of her arms
Air streams horizontally past a small airplane's wings such that the speed is 63.0m/s over the top surface and 53.0m/s past the bottom surface. What is the direction of the net vertical force (including the effects of gravity) on the airplane
A car with 52cm -diameter tires accelerates uniformly from rest to 20m/s in 10s. How many ties does each tire rotate
A skyscraper has 550 windows that each have length 2.50m and height 2.0m when the temperature is 25C. the windows are made of single-pane glas of thickness 1/2"(1.27com) mounted in an aluminum frame.
What is the minimum thickness of a nonreflecting film coating (n=1.30) on a glass lens (n=1.50) for wavelength 500 nm
Consider a rocket launched from Vandenberg AFB, CA (longitude=34.6 degrees) having an initial velocity of 3 km/s in the northerly direction relative to the launch site.
q1. a 1.2 kg mass attached to a spring oscillates with amplitude of 6.3 cm and a frequency of 1.1 hz. what is its
A golf ball strikes a hard, smooth floor at an angle of 25.8 ° , What is the magnitude of the impulse applied to the golf ball by the floor
A jeweler examines a diamond with a magnifying glass. If the near-point distance of the jeweler is 20.7cm, Find the angular magnification when the diamond is held 5.71cm from the magnifying glass
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