A snake is crossing a stream with 0.86 m/s current flowing to the East. The snake is pointed downstream at an angle of θ = 62° with respect to the shore (North of East), but the current carries it downstream such that the speed of the snake in the Earth frame is 1.4 m/s at an angle of φ = 52° with respect to the shore (North of East). A. Draw a diagram of the situation including the relative velocity vectors for the snake in the frame of the water, the water in the frame of the Earth and the snake in the frame of the Earth. Label the vectors VSW, VWE and VSE. Be sure to label both

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Two equally matched rowers race each other over courses . Each oarsman rows at speed c in still water; the current in the river moves at speed v. Boat 1 goes from A to B, a distance L, and back. Boat 2 goes from A to C, also a distance L, and back. A, B, and C are marks on the riverbank. Which boat wins the race, or is it a tie? (Assume c  v.) Use binomail expansion.

A boat is docked on the southern shore of a swiftly moving river that is 262.0 m wide. The river flows from east to west with a speed of 4.00 m/s relative to the shore. There is a dock located upstream on the northern side of the river at an angle of 57.0∘57.0∘ relative to the shore (i.e. north of east). The boat is able to travel at a speed of 6.50 m/s relative to the water. If the boat travels directly to the dock on the northern shore at a constant speed, how long does it take to get there?

You are the pilot of a spacecraft intended for travel at very high speeds. Before leaving you measure the spacecraft to be 31.4 m long and have a mass of 5.28 x 104 kg. During your travel, you pass a planet and exchange information with an observer on the planet. You are told that your spacecraft has been measured to be 28.6 m long. a. How fast is your spacecraft travelling with respect to the planet? b. You are told there is a nearby planet that is stationary with respect to the first planet. The observer on the first planet says it will take you 25 s to reach the nearby planet. How far away does your co-pilot on the spacecraft say the nearby planet is? c. How much energy was required to accelerate your spacecraft to this speed?

The space and time coordinates for two events as measured in a frame S are as follows: Event 1: x1=x0 , t1=x0/c Event 2: x2=2x0, t2=x0/2c a. There exists a frame in which these events occur at the same time. Find the velocity of this frame with respect to S. b. What is the value of t at which both events occur in the new frame?

Scientists in the laboratory create a uniform electric field Ē = 1.0 x 10°k [V/m] in a region of space where B = 0. What are the fields in the reference frame of a rocket travelling in the positive x direction at 1.0 × 106 [m/s]?

Reference frame B moves past frame A with a constant relative velocity. A particle has an acceleration of magnitude a as measured in frame A. Which of following describes the particle's acceleration magnitude as measured in frame B? O equal to a O greater than a O less than a

Determine the magnitudes of all pin reactions for the frame loaded as shown. A Part 1 A₂ 350 mm B I 57⁰ 800 mm 27⁰ The Free-Body diagram for bar ABC is shown. Note that bar BD is a two-force member. Solve for the force BD. A, 780 N Answer: BD = 1 e Textbook and Media 57⁰ BD N Save for Later Using multiple attempts will impact your score. 10% score reduction after attempt 1 780 N Attempts: 0 of 3 used Submit Answer

At what time t are the 2 particles moving towards each other?