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At NASA's Zero Gravity Research Facility in Cleveland, Ohio, experimental payloads fall freely from rest in an evacuated vertical shaft through a distance of 132 m.
(a) If a particular payload has a mass of 49 kg, what is its potential energy relative to the bottom of the shaft?
(b) How fast will the payload be traveling when it reaches the bottom of the shaft?
A college campus features a large fountain surrounded by the circular pool. Two students start at the northernmost point of pool and walk slowly around it in opposite directions.
The cord is after that pulled from below, shortening the radius of the circle in which block revolves to 0.15. Model the block as a particle.
The position of an object as a function of time is r? =(3.2t+ 0.90 t2)i^+(1.7t? 1.2 t2)j^m, Find the object's magnitude of the acceleration and What is the direction of the acceleration
How much does the spring stretch. A 1200 {rm kg} car traveling at a speed of 15 {rm m/s} skids to a halt on wet concrete where f_k = 0.20. how long are the skid marks.
An proton (m = 1.67 ´ 10-27 kg and q = 1.6 ´ 10-19 C) travelling at 2.7 × 105 ms-1 enters a magnetic field of 1.2 T at right angles to the direction of motion of the electron. What is the centripetal force on proton.
Two 2.00 cm X 2.00 cm plates that form a parallel-plate capacitor are charged to ± 0.708 nC. had are the electric field strength inside and the potential difference across the capacitor if the spacing between the plates is (a) 1.00 mm and (b) 2.00 ..
A pendulum has a period of 0.80s on Earth. What is its period on Mars, where an acceleration of gravity is about 0.37 that on Earth.
If you touch the terminal of a battery, What current will pass through your body if you touch the two terminals of a 9.0 V battery with your two hands
Calculate the threshold wavelength, in nm, of a metal if that metal emits an electron with a kinetic energy of 6.32 × 10-19 J when illuminated with light that has a frequency of 1.97 × 1015 Hz.
Density is the ratio of an object;s mass to its volume. Would you except density to be a vector or a sdcalar quanity? Explain.
A heavy stone of mass m is hung from the ceiling by a thin 8.25-g wire that is 65.0 cm long. When you gently pluck the upper end of the wire, What is the mass m of the stone
Suppose you point a pinhole camera at a 15-m-tall tree that is 75m away. If the film is 22cm behind the pinhold, what will be the size of the tree's image on the film
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