Chance of guessing correctly
A student randomly guesses the answers to six questions true/false quiz. If there is a 50% chance of guessing correctly on each question, what is the probabilty that the student misses exaclty 1 question?
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You are a police officer. Your squad car is at rest on the shoulder of an interstate highway when you notice a car speeding past you at 85 mph
An m = 6.70-kg clay ball is thrown directly against a perpendicular brick wall at a velocity of 22.0 m/s and shatters into three pieces, which all fly backward, as shown in the figure.
Determine the velocity v and acceleration a. Determine the magnitude of the velocity v and the angle which the velovity vector makes with the x-axis when t=2 sec.
If the railway gun was at rest before firing and moved to the right at a speed of 4.33 m/s immediately after firing, what was the speed of the projectile as it left the barrel (muzzle speed)? Assume that the wheel axles are frictionless.
If viscous affects are negligible. Determine the diameter, D(z), in terms of D1 if the pressure is to remain constant throughout the pipe. That is P(z)=P1.
A copper wire is placed to be parallel to the x-axis. The magnetic field is in the y-axis. When this copper wire is moving in the z-direction, in which direction the conducting electrons in the copper wire will move? Explain.
A body with the shape of a rectangular parallelepiped moves without slipping on two cylindrical rollers. The mass os each roller is 1200 kg, and the mass of the body is 2200 kg. Determine the acceleration of the body?
Suppose a committee of 3 people is to be selected at random from a group consisting of 6 men adn 4 women. What is the probability that all three people selected are men?
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