Find how long does it take for the boat to cross the river

Assignment Help Physics
Reference no: EM13325573

A 200-m-wide river flows due east at a uniform speed of 4.5m/s. A boat with a speed of 9.0m/s relative to the water leaves the south bank pointed in a direction 28o west of north. What is the

(a) magnitude and

(b) direction of the boat's velocity relative to the ground? Give the direction as the angle of the velocity from due north, positive if to the east and negative if to the west.

(c) How long does it take for the boat to cross the river?

Reference no: EM13325573

Questions Cloud

Explain monosubstituted benzene ring : Two isomeric compounds, A and B, are known to each have a monosubstituted benzene ring. Both have the formula C9H10O2 and both are insoluble in water. However, A dissolves in dilute aqueous NaOH, but B does not.
Calculating internal rate of return : Calculate the net present value, go to the Function Wizard. The function you are going to use is in the function category of FINANCIAL and is NPV and calculating Internal Rate of Return
What is her useful power output : Shoveling snow can be extremely taxing since the arms have such a low efficiency in this activity. What is her useful power output
Evaluate anacomps business new product development strategy : Evaluate Anacomp's business new product development strategy. What are the risks and benefits of this strategy for Anacomp's shareholders and how is Anacomp's accounting influenced by the way the company organizes and finances its new product devel..
Find how long does it take for the boat to cross the river : A 200-m-wide river flows due east at a uniform speed of 4.5m/s. A boat with a speed of 9.0m/s relative to the water leaves the south bank pointed in a direction 28o west of north. How long does it take for the boat to cross the river
Compute fraction of the energy was lost : One hockey puck of mass 0.2 kg strikes an identical stationary puck on a frictionless ice rink. what fraction of the energy was lost
What is the magnitude of the maximum gravitational force : A bowling ball (mass = 7.2 kg, radius = 0.11 m) and a billiard ball (mass = 0.39 kg, radius = 0.028 m) may each be treated as uniform spheres
Explain how would the results of the experiment change : If the top coil were rotated 90 degrees about a vertical axis through the center of the coil so it is perpendicular to the balance coil, how would the results of the experiment change
Evaluate the equilibrium constant at 24 k for a reaction : Calculate the equilibrium constant at 24 K for a reaction with ?Ho = 10 kJ and ?So = (-100) J/K. (Don't round unil the end. Using the exponent enlarges any round-off error.)

Reviews

Write a Review

Physics Questions & Answers

  Find the magnitude at point a

Three point charges, A = 1.80 µC, B = 7.50 µC, and C = -3.80 µC, are located at the corners of an equilateral triangle, Find the magnitude (N/C) at point A, and the direction in degrees counterclockwise from the positive x-axis

  What is the heat flow involved in this process

Heat and physical activity. In a bench press, a weight lifter lifts 132kg 41cm. In so doing, the athlete expends 1.2kJ. What's the heat flow involved in this process

  What is the charge on the capacitor

An air-filled parallel-plate capacitor has plates of area 2.20 cm2 separated by 2.00 mm. What is the charge on the capacitor

  Determine the distance between her glasses and eyes

Your physics TA has a far point of 0.711 m from her eyes and is able to see distant objects in focus when wearing glasses with a refractive power of ?1.47 D. Determine the distance between her glasses and eyes

  Find the magnitude and direction of the magnetic field

Two long, straight wires are parallel and are separated by a distance of d = 0.230 m, The top wire in the sketch carries current I1 = 3.80 A, toward the right, and the bottom wire carries current I2 = 7.00 A, what are the magnitude and direction of t..

  What impulse will the engine impart to the rocket

Far in space, where gravity is negligible, a 485kg rocket traveling at 95.0m/s fires its engines. It shows the thrust force as a function of time. The mass lost by the rocket during these 30 s is negligible.

  Determine the maximum mass

A hypothertical 30 cm long arm. For the purposes of answering this question assume that the arm itself is weightless. what is the maximum mass that can be held in the hand if the muscle is attached 2 cm from the bleow

  What is the largest size vehicle

A 7.6 cm diameter horizontal pipe gradually narrows to 4.8 cm . When water flows through this pipe at a certain rate, What is the largest size vehicle

  At what temperature is the diameter of the hole equal

At what temperature is the diameter of the hole equal.

  Calculate the energy lost in the collision

A 2.0 kg object moving with a velocity of +6.0 m/s collides with a 6.0 kg object that is initially at rest. Find the energy lost in the collision.

  What is the source of the centripetal force acting on riders

At amusement parks, there is a popular ride where the floor of a rotating cylindrical room falls away, What is the source of the centripetal force acting on the riders

  Define a lie in the strict or formal sense

Define a lie in the strict or formal sense and explain what is meant by communication - what is the principal purpose of communication?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd