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A stainless-steel orthodontic wire is applied to a tooth, as in the figure below. The wire has an unstretched length of 3.34 cm and a radius of 0.14 mm. If the wire is stretched 0.12 mm, find the magnitude and direction of the force on the tooth. Disregard the width of the tooth and assume Young's modulus for stainless steel is 1.8 1011 Pa.
A krypton laser produces a cylindrical red laser beam 2.0 in diameter with 5.0 of power. What is the light intensity on a wall 2.2 away from the laser
On aircraft carriers, catapults are used to accelerate jet aircraft to flight speeds in a short distance. What is the acceleration of the jet in m/s2
An automobile tire is inflated with air originally at 10.0°C and normal atmospheric pressure. What is the tire pressure
Calculate the gravitational force between the Sun and the Earth. Use the following numbers. G = 6.67 x 10-11 m3/kg/s2, Mass of the Sun (M_sun) = 2.0 x 1030 kg
Determine the magnitude and direction of the force between two parallel wires 15m long and 6.0cm, Determine the magnitude of the force between two parallel wires
A crying baby emits sound with an intensity of 8 × 10-8 W/m2. What is the intensity level for a set of twins? The lowest detectable intensity is 10-12 W/m2
A 1.35 kg object is moving in the x direction at 16.4 m/s. Just 3.61 s later, it is moving at 28.8 m/s at 36.0^circ to the x axis. What is the magnitude of force applied throughout this time.
Consider the re?ection of light from a soap bubble. The bubble is a thin ?lm of water with air on both sides. Find the minimum thickness (nm) of the bubble so that reflected light constructively interferes
John starts at the origin and walks 3.0 km due east. If he then walks 30? north of east for 8.0 km, what is his distance from the origin (in km)
question1a 60.0-kg projectile is fired at the angle of 30.0deg above the horizontal with an initial speed of 1.28 102
unpolarized light with intensity io passes through two polarizers the transmission of the one is vertical and that of the other is 60 degrees to the vertical
When you lift a bowling ball with a force of 80.2 N, the ball accelerates upward with an acceleration a. Calculate the weight of the bowling ball
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