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A heavy sled is being pulled by two people as shown in the figure. The coefficient of static friction between the sled and the ground is ?s = 0.595, and the kinetic friction coefficient is ?k = 0.395. The combined mass of the sled and its load is m = 336 kg. The ropes are separated by an angle ? = 29°, and they make an angle ? = 30.8° with the horizontal. The tensioin is 870.76N. If this rope tension is maintained after the sled starts moving, what is the sled\'s acceleration?
A 12.0-V battery remains connected to a parallel plate capacitor with a plate area of 0.284m2 and a plate separation of 4.14mm, What is the store energy in the capacitor
An antiaircraft shell is fired vertically upward with an initial velocity of 200m/s. compute the maximum height of the shell
The intensity level of 34.07 harmonicas in a harmonica band is 78.31 dB. Compute the intensity level generated by one harmonica
A 1.10kg block is attached to a spring with spring constant 17.5N/m . While the block is sitting at rest, determine The amplitude of the subsequent oscillations
A uranium and iron atom reside a distance R = 54.70 nm apart. The uranium atom is singly ionized; the iron atom is doubly ionized. find the magnitude of the force on the electron from the uranium ion
A sheet of glass is coated with a 495-nm-thick layer of oil (n = 1.42), What is the color of reflected light and What is the color of the most part of transmitted light
A speeder is pulling directly away and increasing his distance from a police car that is moving at 25 m/s with respect to the ground. Find the speeder's speed with respect to the ground
Four charged particles are at the corners of a square of side, Determine the total electric force exerted on q
Explain how would the results have differed in this experiment if the pulley and of the track was lower that the other end of the track?
In order for Sasha (in A-5) to feel weightless at the top of the ride, a) at what linear speed must the Ferris wheel tum? b) At this speed, how much would she appear to weigh at the bottom of the Ferris wheel.
A thin 5.6-m metal rod sustanins a longitudinal standing wave with vibration antinodes at each end of the rod. What is the frequency of the rod's vibration
Radar is used to determine distances to various objects by measuring the round-trip time for an echo from the object. How far away is the planet Venus if the echo time is 1500 s
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