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You recall the lake is M miles in circumference. You estimate your walking speed at 3 miles per hour and the runner's speed to be about 7 miles per hour.
The ski boat's jet propulsive system draws water in at point A (at the middle of the bottom of the boat) and expels it at B (at back of boat).
At t=0, wedge A starts moving to the right with a constant acceleration of 100 mm/s^2 and block B starts moving along the wedge toward the left.
Assume the water has uniform velocity represented by the vector Q in the diagram below. The shore lines are on the left and right hand side of the diagram.
Pin P is attached to the wheel shown and slides in a slot cut in bar BD. The wheel rolls to the right without slipping with a constant angular velocity.
For what initial velocity and direction in the rotating system will the puck appear to be motionless in the motionless system.
Consider a head-on elastic collision between two particles. (Since the collision is head-on, the motion is confined to a single straight line.
If m denotes its remaining mass at time t, show that the rate of decrease of m with respect to t is 2mg/u and deduce that m=Me^(-2gt/u).
If both carts had exactly the same mass in trial 1, how would you expect their velocities to compare with each other? Why?
A passenger train can travel 240 miles in the same amount of time it takes a freight train to travel 160 miles . If the average velocity of the freight train.
Solve using the quadratic formula for the two roots (two values of tan degree) and hence the two values of degree.
train B is going south with velocity of 152 km/hour. A passenger in train A see the smoke that emitted from his train chimney making.
Estimate the uncertainty in the momentum of an electron whose location is uncertain by a distance of 2 Angstrom.
Relative to the ground, a car has a velocity of 18.0 m/s, directed due north. Relative to this car, a truck has a velocity of 22.8 m/s.
Given the formula for E, show the final formula to solve for each of the following variables: E= I/4?r2
Where q and m are the charge and rest mass of the particle being accelerated, B is the magentic field strength, R is the orbit radius
Make a table showing the times in s when the observer sent the first signal, received the first signal, and received the confirmation signal.
The index of refraction of carbon tetrachloride is 1.46. The speed of light in this material is:between 2.00 x 10^6 and 3.00 x 10^6 km/s.
(a) What is the average intensity (in W/m 2 ) of a 1000 Hz sound wave in water if the displacement amplitude of the wave is 1.00 nm? (1 nm=10 –9 m).
How much gas is left in the tank? Give this value in two ways: the number of moles, and the more useful quantity of the number of Liters.
Violet light has a wavelength of about 410 nm. What is its frequency? Calculate the energy of one photon of violet light.
Two trains, one traveling at 68km/h and the other at 136km/h. They are headed toward one another along a straight level track.
Execute the necessary research to find the equation that is used to calculate the Schwarzschild radius of a black hole
A 0.90X10^3 kg Toyota collides into the rear end of a 2.2X10^3 kg Cadillac stopped at a red light.
Road accident researchers were interested in the effectiveness of Red Light cameras that can photograph the number plates of cars.