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Consider a simple pendulum (no friction). Does the angular acceleration of the mass remian constant during its motion? If not, then how does the angular acceleration change? Is the angular accerlation ever equal to zero when the pendulum is in motion? If yes, then in which moment the mass would have the zero angular accerlation?
An 8-kg box is pushed 15 m across a level floor by a constant 15.7-N applied force. Assuming the box starts from rest, what is the final velocity of the box at the 15-m point
A car of mass = 1200kg traveling at 55.0km/hr enters a banked turn covered with ice. What is the radius r of the turn
A totally absorbing detector of area A = 10 cm2 lies perpendicularly to the direction of propagation. How much energy is absorbed by the detector in one second?
question 1 each of 106 identical blocks sitting on a frictionless surface is connected to the next block by a massless
the magnetic field perpendicular to a circular coil of 5 turns and diameter 20cm changes from +1.85 T to -.25 T in 30 ms. Find the change in magnetic flux and induced emf
A Histogram shows that the mean of rain in the area has increased over the last 5 years. What is the probability that the mean would be higher this year than in the previous 5.
How much force acts on one surface of a rectangular bedroom wall that is 2.20 m by 3.20 m when atmospheric pressure is 1.00x 10^5 N/m^2
A car is stopped for a traffic signal. When the light turns green, the car accelerates, increasing its speed from 0 to 5.80 m/s, What is the magnitude of the linear impulse experienced by a 74.0-kg passenger in the car during the time the car acceler..
A projectile launched at an angle of theta to the horizontal reaches a maximum height h. Find an expression for its horizontal range
The mass m =1 kg is set up as a pendulum of length 0.6m as shown on the diagram. Initially in the position of h = 0.2m above the lowest point, and the pendulum is given initial speed of 1m/s. What is the largest mass M that might be temporarily lifte..
As part of a class project you are given 0.900 g of copper and asked to fabricate a wire with uniform cross-section. What length of wire do you end up with
A half-wave antenna works on the principle that the optimum length of the antenna is half the wavelength of the radiation being received. What is the optimum length of a car antenna when it receives a signal frequency of 94.7 MHz?
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