Science

PhysicsQ&A LibraryA 150-m-wide river flows due east at a uniform speed of 3.8m/s. A boat with a speed of 8.1m/s relative to the water leaves the south bank pointed in a direction 34o 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?Start your trial now! First week only $4.99!*arrow_forward*

Question

A 150-m-wide river flows due east at a uniform speed of 3.8m/s. A boat with a speed of 8.1m/s relative to the water leaves the south bank pointed in a direction 34o 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?

Tagged in

Science

Physics

Find answers to questions asked by students like you.

Q: In the figure particle 1 of charge +6e is above a floor by distance d1 = 3.60 mm and particle 2 of c...

A: Its given that:

Q: A soccer ball whose radius is 11 cm rolls a distance of 10 m in 3.50 s. What is the angular speed of...

A: The linear velocity of the ball is proportional to the angular speed of the ball through the constan...

Q: An alternating source drives a series RLC circuit with an emf amplitude of 6.24 V, at a phase angle ...

A: Write the expression for the resultant emf.

Q: A moonshiner makes the error of filling a glass jar to the brim and capping it tightly. The moonshin...

A: Given: deltaV/Vo = 6 × 10-3Bulk modulus = 1.7 × 109 N/m2Find: The force exerted by the moonshine per...

Q: A car accelerates uniformly from rest to 24.2 m/s in 8.46 s along a level stretch of road. Ignoring ...

A: The initial velocity of car = 0 m/s.The final velocity = 24.2 m/s.The time taken by the car to acce...

Q: A wire with a resistance of 8.6 Ω is drawn out through a die so that its new length is 3 times its o...

A: Relation between resistance and resistivity is,

Q: Can you show me this solution, I’m not sure how to work this problem.

A: Given:

Q: Earth's radius is 6.38 × 106 m, and it completes one revolution every day. What is the tangential sp...

A: The expression for the tangential speed on the equator,

Q: to side AD 12

A: a)The expression for the force on side AD,

Q: A 44.1-kg crate rests on a horizontal floor, and a 66.9-kg person is standing on the crate. Determin...

A: (a)Normal force exerted by the floor on the crate is,

Q: Can someone help me work this out? I tried using the second kinematic equation and got 13.44m/s as V...

A: Click to see the answer

Q: State how many significant figures are proper in the results of the following calculations: (a) (106...

A: Given,

Q: 32. Review. A block of mass m2.00 kg and a block of mass m2 -6.00 kg are connected by a massless str...

A: a)The free body diagram is,

Q: What is the energy released in this alpha decay reaction 22688Ra→22286Rn+42He88226Ra→86222Rn+24He? (...

A: The given nuclear reaction after emitting alpha particle is,

Q: What is the wavelength of a radio wave of frequency 101.1 MHz(one of the frequencies in the FM band)

A: The wavelength of a wave of particular frequency can be calculated using following equation.

Q: 24. A 1.50-kg object is held 1.20 m above a relaxed mass- less, vertical spring with a force constan...

A: Given,

Q: Calculate the number of coulombs of positive charge in 198 cm3 of (neutral) water. (Hint: A hydrogen...

A: Mass of 198cm3 of water is,Substituting the values,

Q: Two blocks are sliding to the right accross a horizontal surface, as the drawing shows. In Case A th...

A: Consider the figure, the free body diagram of block 1 and block 2 for the two-block system is shown....

Q: A 1400-kg car is traveling with a speed of 14.9 m/s. What is the magnitude of the horizontal net for...

A: Acceleration of the car is,

Q: Vibrating string lab

A: The tension in the string is inversely proportional to the square of the number of segments in the s...

Q: collin stands on a 60.0 m high cliff shooting a cannon. he is using a launch angle of 42.0 degree an...

A: (a) In order to find the range of the time of flight of the cannon balls have to be found.(b) The am...

Q: Tectonic plates are large segments of the earth's crust that move slowly. Suppose one such plate has...

A: (a) The average speed of an object is the total distance traveled by the object divided by the elaps...

Q: In the figure, a 170-turn coil of radius 1.8 cm and resistance 6.1 Ω is coaxial with a solenoid of 3...

A: The number of turns in the coil is 170 turns, and radius of the coil is 1.8cm, and the resistance of...

Q: 4 ) An object of height 9 cm is placed 25 cm in front of a converging lens of focal length 10 cm. Be...

A: a)The expression for the image distance from the converging by the lens formula,

Q: Two wires carry current into the page as shown below left. One wire carries a current I and the othe...

A: The magnetic field lines around a current carrying straight wire are concentric circles in which the...

Q: In the figure, two long straight wires are perpendicular to the page and separated by distance d1 = ...

A: Let us say that, the magnetic field due to wire 1 at point P is B1 and that due to wire 2 is B2. The...

Q: An infinite, nonconducting sheet has a surface charge density σ = +9.64 pC/m2. (a) How much work is ...

A: Given,

Q: A sandwich board advertising sign is constructed as shown in (attached image). Its mass is 6.40 kg. ...

A: The horizontal component exerted by each side on the hinge can be calculate in given steps:Given:Mas...

Q: A rectangular current loop (a = 20.0 cm, b = 31.0 cm) is located a distance d = 11.0 cm near a long,...

A: The magnetic force on the sides of the loop with length b will cancel each other due to the symmetry...

Q: An open top tank half filled with water is to be transported constant acceleration. The dimensions o...

A: 2.Slope of the free surface of the liquid is,

Q: Chapter 29, Problem 049 Your answer is partially correct. Try again. A toroid having a square cross ...

A: a)The expression for the magnetic field inside the toroid at the inner radius,

Q: In the figure two tiny conducting balls of identical mass m and identical charge q hang from noncond...

A: Charge on both balls have the same sign, so force occurs between them is repulsive. Gravity force on...

Q: At the beginning of a basketball game, a referee tosses the ball straight up with a speed of 5.1 m/s...

A: The minimum time that a player should wait can be calculated as follows:Given:Initial velocity of th...

Q: A 1.7 kg body oscillates in SHM on a spring that, when extended 2.4 mm from its equilibrium position...

A: Write the expression for the angular frequency of oscillation.

Q: State how many significant figures are proper in the results of the following calculations: (a) (106...

A: a)The resultant of the given figure,

Q: A vertical spring with a spring constant of 480 N/m is mounted on the floor. From directly above the...

A: The spring constant of the spring = 480 N/m.The mass of the block =0.30 kg.The compressed distance =...

Q: A resistor R22=7.0 Ω is mounted in parallel with a resistor R33=14.0 Ω, and this combination is conn...

A: Write the expression for equivalent resistance due to parallel resistors

Q: The figure shows a section of a long, thin-walled metal tube of radius R = 4.52 cm, with a charge pe...

A: Given:

Q: avdcceieration using an inclined plan Eplaeee 8) During vibrating spring experiment data table is gi...

A: The spring Force F = spring force (N)k = spring constant (N/m)x = change in length L (m)

Q: What must the separation be between a 4.7 kg particle and a 6.6 kg particle for their gravitational ...

A: Write the expression for gravitational force of attraction.

Q: In the figure, a climber with a weight of 440 N is held by a belay rope connected to her climbing ha...

A: From the figure all the forces acting can be shown and according to Newtons second law,

Q: 4. A bar on a hinge starts from rest and rotates with an angular acceleration α 10 + 6, where α is i...

A: Given: alpha = 10 + 6ttime, t = 4 sFind: The angle in radians through which the bar turns in the fi...

Q: A bowling ball (mass=7.2 kg, radius=0.11 m) and a billiard ball (mass=0.38 kg, radius=0.028 m) may e...

A: Let m1 and m2 be the mass of bowling ball and billiards ball respectively.Let r1 and r2 be the radiu...

Q: 40. Two balls with masses M and m are connected by rigid rod of length L and negligible mass as show...

A: a)Moment of Inertia for mass M is,

Q: An ac generator with Em = 211 V and operating at 398 Hz causes oscillations in a series RLC circuit ...

A: Since we are entitled to answer up to 3 sub-parts, we’ll answer the first 3 as you have not mentione...

Q: 14.A crate of mass 10.0 kg is pulled up a rough incline with Man initial speed of 1.50 m/s. The pull...

A: a)Work done by gravity is,

Q: A current of 0.300 A through your chest can send your heart into fibrillation, ruining the normal rh...

A: The current passing through chest is 0.3A .The time for which current persists is 1.39 min.Current i...

Q: Chapter 23, Problem 033 In the figure two large, thin metal plates are parallel and close to each ot...

A: The magnitude of surface charge density of the plates is 6.40×10-22 C/m2. Consider the metal plates ...

Q: It takes 156 kJ of work to accelerate a car from 20.4 m/s to 28.2 m/s. What is the car's mass?

A: The mass of the car can be calculated in given steps:Given:

Q: enter return shift 0 ommand CO Tarrant County Community College 2019SP-PHYS-2425-40567(9): Universit...

A: The Bernoulli’s principle can be applied at bottom and top of the airplane.