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Nine percent of men and 0.25% of women cannot distinguish between the colors red and green. This is the type of color blindness that causes problems with traffic signals.
a. If six men are randomly selected for a study of traffic signal perceptions, find the probability that exactly two of them cannot distinguish between red and green. Use the binomial probability formula and verify that the assumptions are satisfied.
b. Researchers need at least 50 men with this type of colorblindness, so they randomly select 600 men for a study of traffic-signal perceptions. Estimate the probability that at least 50 of the men cannot distinguish between red and green. Is the result high enough so that the researchers can be very confident of getting at least 50 men with red and green colorblindness?
Argue that the ratio of the magnetic to electric dipole moments equals the ratio of the current density to the charge density.
An inductor in the form of a solenoid contains 410 turns and is 12.0 cm in length. What is the radius of the solenoid
A hockey puck on a frozen pond is given an initial speed of 23.0 m/s. If the puck always remains on the ice and slides 122 m before coming to rest. Determine the coefficient of kinetic friction
Who came up with the idea that matter is composed of tiny, indivisible particles - Rutherford's experiment showed that
A rocket, away from all gravitational forces, accelerates upward at an acceleration of 12.8m/s^2. On its main deck is a crate with a mass of 81.6kg. a) How many forces act on the crate? b) Determine the Normal force on the crate, & c) What would the ..
What is the smallest thickness of a soap film (n =1.36) that would appear black if illuminated by 470 nm light? Suppose there is air on both sides of the soap film.
A block of weight w = 35.0N sits on a frictionless inclined plane, which makes an angle θ = 29.0° with respect to the horizontal, as shown in the figure. (Figure 1) A force of magnitude F = 17.0N , applied parallel to the incline, is just suff..
Two forces are applied to a block of mass M equal to 14 kg that sits on a horizontal, frictionless table. Find the x and y components of the second force
Two equally charged particles are held 2.610-3 m apart and then released from rest.The initial acceleration of the first particle is observed to be7.0 m/s2 and that of the secondto be 10.0 m/s2. The mass ofthe first particle is 6.3 10-7 kg.
The catapult on an aircraft carrier can take an aircraft weighing 300,000 N from 0 to 80.6 m/s in 12.6 seconds, find the acceleration of the aircraft when it launches
If a pendulum is oscillating at an angle Φo=60 degree, compute by what percent the period deviates from its small angle limit
a stone is dropped in still air from the deck of a high bridge. the sound of the splash reaches the deck 3 seconds
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