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A force of 83 Newtons is applied to a wire with a diameter of 0.5 mm. What is the tensile stress (in N/m2) in the wire?
Some people like to place large reflective balls in their gardens. Let?s say that such a ball has a radius of curvature of 24.0 cm, Determine the image distance for the bird's image
Calculate the net work done by the force of friction. A 1.50 m-long, 530 g rope pulls a 7.00 kg block of ice across a horizontal, frictionless surface. The block accelerates at 1.90 {rm m}/{rm s}^{2}. How much force pulls forward on (a) ice (b) rop..
A 1.02 liter flask contains a certain quantity of ideal gas at 315 K. Then an equal number of molecules of the same gas are added to the flask, after which the absolute pressure is 1.60 times its original value. What is a final temperature.
a)What is the angular velocity of the earth (regarded as a particle ) about the sun and b)its average linear speed in its orbit. c) What is the acceleration of the earth with respect to the sun
1. Estimate the rate of speed (length per time) at which the hair on your head grows. Use your own experience as a guide for your answer. First express your estimate in inches per second and then in meters per second. Use scientific notation.
A 8500-kg boxcar traveling at 13m/s strikes a second boxcar at rest. what is the mass of the second car
question1a golf ball with an initial angle of 30deg lands exactly 214 m down range on a level course.a neglect air
A series RLC circuit has a peak voltage of 154 V and a peak current of 5 A. If the current lags the voltage by 45 degrees, what is the average power of the circuit
A turbine blade rotates with angular velocity w(t)= 2.00 rad/s - 2.100 rad/s^3 t^2. What is the angular acceleration of the blade at t = 9.1 s
Lightening produces a maximum air temperature around 3 x 10 ^4 K. Using Wien's Law, find the wavelength of the thermally produced photons
A 720-kg race car can drive around an unbanked turn at a maximum speed of 43 m/s without slipping. The turn has a radius of 160 m, What is the coefficient of static friction between the track and the car's tires
An astronaut on a space walk is floating away from her space ship at a speed of 0.15 m/s. In order to change directions, What is the mass of the ejected gas
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