Physics, 15.12.2021 03:20, 21hendlill
An iron weight, suspended by a string, is motionless. The tension in the string is 4. 75 newtons. What is the mass of the iron weight? A. 0. 485 kilograms B. 4. 75 kilograms C. 9. 65 kilograms D. 10. 0 kilograms E. 15. 5 kilograms.
Answers: 1
Physics, 21.06.2019 22:40, cookies1164
Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 710 n/m. it is initially at rest on an inclined plane that is at an angle of θ = 23° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.19. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. a) what is the block's initial mechanical energy? b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.
Answers: 3
Physics, 22.06.2019 18:00, kachinafenton9098
Asynthetic fiber used in manufacturing carpet has tensile strength that is normally distributed with mean 75.5 psi and standard deviation 3.5 psi. how is the standard deviation of the sample mean changed when the sample size is increased from n equals 8 to n equals 47
Answers: 2
An iron weight, suspended by a string, is motionless. The tension in the string is 4. 75 newtons. Wh...
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