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If a camera with a 60 mm lens is to resolve two objects that are 3.0 mm from each other and both objects are 4.0 m from the camera lens, what is the minimum diameter of the camera lens? (Assume the wavelength of light is 550 nm .) What is the resolving power?
The auditory canal, leading to the eardrum, is a closed pipe 2.8 cm long. Find out the approximate value (ignoring end correction) of the lowest resonance frequency.
A 100kg hollow sphere is neutrally buoyant and completely underwater. Its volume is 0.5 cubic meter. what fraction of this volume is helium
Consider a thin rod of mass 3.7 kg, length 1.8m and uniform density. The rod is pivoted at one end on a frictionless horizontal pin
An apartment has a living room whose dimensions are 2.8 m x 5.1 m x 5.6 m. what is the mass (in grams) of the air
two small beads having positive charges 3q and q are fixed at the opposite ends of a horizontal, insulating rod, extending from the origin to the point x=d. a third small chatged bead is free to slide on the rod. at what position is the third bead..
A basketball leaves a player's hands at a height of 2.20m above the floor. what is the range of initial speeds allowed to make the basket
The level of the liquid surface in the tank can be calculated. If the pressure on the gage is 20 kPa, Determine the depth d of liquid in the tank?
Light is incident on a slit 0.750 mm wide. On a screen 2.00 m away, the distance from the central maximum to the first minimum is 1.35 mm. compute the wavelength of the light.
A scaffold of mass 60 kg and length 5.5 m is supported in a horizontal position by a vertical cable at each end. find the tension in the cable closer to the painter
A 25 kg child sits in a swing supported by two chains, each 2.7 m long. If the tension in each chain at the lowest point is 147 N, Find the force of the seat on the child at the lowest point
An undersea research chamber is spherical with an external diameter of 5.40 m. The mass of the chamber, when occupied, is 70400 kg. It is anchored to the sea bottom by a cable.
A 20-kg sled is pushed up a 34° slope to a vertical height of 140 m. A constant friction force of 50 N acts for the entire distance. What external work was required
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