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A two-slit pattern is viewed on a screen 1.20 m from the slits. If the two third-order minima are 27.7 cm apart, what is the width of the central bright fringe?
A hanging copper wire with diameter 1.4mm (1.4e-3m) is initially 0.95 m long. Find the approximate value of the effective spring stiffness of the inter atomic force
A parachutist relies on air resistance (mainly on her parachute) to decrease her downward velocity. She and her parachute have a mass of 52.5 kg and air resistance exerts a total upward force of 610 N on her and her parachute.
A centrifuge spins small tubes in a circle of radius 21 cm at a rate of 1419 rev/min. What is the centripetal force on a sample that has a mass of 5 g
An automobile tire is inflated with air originally at 10.0°C and normal atmospheric pressure. What is the tire pressure
The mass then travels vertically and it takes 1.10 s for the mass to reach the top of its trajectory. Determine the spring constant, in N/m. (Use g=9.81 m/s2). Assume that the time required for the spring to reach its full extension is negligible.
A beam of light traveling in a block of glass (n=1.60) is incident on the top surface at an angle of 55° with respect to the normal. What is the maximum possible index of refraction of the oil
A point source emits 26.0 W of sound isotropically. A small microphone of effective cross-sectional area 0.350 cm2 is located 175 m from the source. estimate the power intercepted by the microphone
The world consumes energy at the rate of about 456 per year, where the joule is the SI energy unit. estimate the average per capita energy consumption rate in watts
The two masses in the Atwood's machine shown in the figure have an initial speed of = 0.20 , and is moving upward. How high does rise above its initial position
A 3.5-kg block of iron (c=0.11 kcal/kgoC) that has been brought to a temperature of 1,063oC is placed on top of a 2.5-kg block of ice (c=0.5 kcal/kgoC) that has been cooled to -50oC
An object starts from the origin and goes along the x-axis to x = 10 m in 2 s, stops for 5.5 s, and then travels at v = -4 m/s for 2.5 s
A young boy with a broken leg is undergoing traction. What is the magnitude of the force exerted on the femur by the lower leg
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