Slope by a motor-driven cable related problem
A skier of mass 68 kg is pulled up a slope by a motor-driven cable. How much work is required to pull him 45 m up a 30° slope (assumed frictionless) at a constant speed of 2.5 m/s?
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A race car starts from rest on a circular track of radius 455 m. The car's speed increases at the constant rate of 0.480 m/s2. At the point where the magnitudes of the centripetal and tangential accelerations are equal, find the following.(a) the
A brick is released with no initial speed from the roof of a building and strikes the ground in 2.70 , encountering no appreciable air drag. How tall is the building? How fast is the brick moving just before it reaches the ground?
It compresses the spring, then is pushed back in the opposite direction by the spring, eventually losing contact with the spring. How long does the block remain in contact with the spring?
A curve with a 125 m radius on a level road is banked at the correct angle for a speed of 20 {rm m/s}.If an automobile rounds this curve at 30 {rm m/s}, what is the minimum coefficient of static friction between tires and road needed to prevent s
Write a 1-2 page letter to Microsoft® asking permission to use screen shots of its product (i.e. Office software application) in a user manual. Your letter should follow the full block format with subject line layout.
Using energy considerations, determine how far up the incline the block moves before it stops if there is no friction between the block and the ramp.
Discusses the statement: -Young public leaders are usually less effective because they have so little experience.
The sound intensity level of a person speaking normally is about 65dB. What is the minimum number of people speaking simultaneously each with this intensity level, that is necessary to produce a sound intensity of at least 78db .
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1. Identify the core values of community psychology. 2. What is the ecological model according to Jason et al. (2026) and what are the merits of the model?
What is the attitude of each toward change in their personal life and in the relationship? During Satir's example In the scenario between the husband and wife
Early in the presentation Satir mentions that individuals define what they pervious by their previous experience. This could be negative experience
Question: Which statement supports the idea that courts often lean toward a medical model approach to mental disorder?
Question: According to Holtzworth-Munroe and Stuart's (1994) batterer typology, which type is more likely to use weapons?
What is mandatory ethics? Explain how you would practice mandatory ethics in your work with a client who recently experienced trauma.
Question: Which two factors are strong predictors of Miranda competence in juveniles?