A stream 1 km wide has a constant current of 3 km/h. At what angle to the shore should a person navigate a boat, which is maintaining a constant speed of 9 km/h, in order to reach a point directly opposite? (Give your answer for acute angle in decimal degrees, rounded to one decimal place.) degrees 0≈

Q: (II) A 120-V hair dryer has two settings: 850 W and 1250 W. (a) At which setting do you expect the…

A: Given information: Voltage rating of the hair dryer V=120 V. Power rating of setting 1 P1=850 W.…

Q: A freezer is to convert 1.67 kg of water at 28.8°C to 1.67 kg of ice at - 4.8°C. If the coefficient…

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Q: In reference to the figure, A @AB B Given: AB= 10.5 m BC = 8.2 m 0 = 41° B = 28° Determine the…

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Q: Anti-scatter grid is the basic component of planar radiography that used to reduce further the…

A: Answer: The Correct option is A.

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A: Given: The net effect on the bolt is a direct pull in the y-direction is Fy=545 lb. The forces…

Q: Complete solution and units please. Use the sleam tables provided, and use 4 decimal places for…

A: Solution:-    Given;                            P1=4 MPa                               P2=10 KPa…

Q: 2. The vector A = 2.124 i + 3.209 j-5.259 k is written in the triad i'j'k' in which x'y'-axes are…

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Q: 2 A grinding wheel powered by electricity is rotating at 66.6 rad/s when initially undergoes…

A: Angular acceleration is the change in velocity over time. It is usually denoted by the symbol a and…

Q: A freezer is to convert 1.67 kg of water at 28.8°C to 1.67 kg of ice at - 4.8°C. If the coefficient…

A:

Q: 5. The electric potential V in a region of space is given by V(x, y, z) = A(x² - 3y² + z²), where A…

A:

Q: Q2 Given the Potential field cylindreical coordinates: V= V=7 Pcos & volt 30 7² +2 and Point (P) at…

A: The electric potential is given in cylindrical co-ordinates as V=30z2+2ρcosϕ V Electric field is…

Q: A dead body was found within a closed room of a house where the temperature was a constant 68 °F. At…

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Q: 3. Calculate the final stretched length in each of the two springs required to hold the 20 kg crate…

A: The answer is explained below with a proper explanation.

Q: 3 A solid cube of side length 11.8 cm is suspended on light string. When the cube is totally…

A: Solution:-Given thatSide length (a)=11.8 cm=0.118 mDensity of sea water (ρs)=1.03…

Q: A wall composed of a group of materials with the same thickness as in the figure. If the temperature…

A: The rate of change of heat in time is governed by the equation  dQdt=k A (T2-T1)d where k is the…

Q: Q3: a particle described by a wave function yo) -3cos 0-1 does this wave function is A=-h² (-cote) a…

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Q: 6. Three charged particles are lined as shown. Charge A = -5uC, charge B = +10uC, and charge C =…

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Q: In conducting the experiment on Archimedes' Principle, the mass of the catch basin that contains the…

A: Given, m=82.79g

Q: Two convex lenses A and B, each of focal length 25 cm, are placed 80cm apart on th ame axis. A 12.0…

A: Given: The focal length of convex lens A and B is 25 cm.             The distance between the two…

Q: 1. Use Gauss Law to Find the charge in the volume defined by 0≤x≤lm, 0≤ y ≤lm and 0 ≤z≤ 1m if p = 30…

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Q: A coil of T.G. having a diameter of 16 cm is set up in the magnetic meridian and a current of 0.5 A…

A: To find-Length of the coil=?Given-Diameter of coil (d)=16 cmRadius (r)=d2=162=8 cm=8×10-2 mCurrent…

Q: Find the magnitude of the vector v = 9 cos(90) i + 9 sin(90) j. (Give an exact answer. Use symbolic…

A: Given: Vector-  v→=9 cos9θ i^+9 sin9θ j^ To find: Magnitude of the vector.

Q: Two silicon diodes, with a forward voltage drop of 0.7 V, are used in the circuit shown in the…

A: The forward voltage drop of the silicon diode is given as, 0.7 V. CIRCUIT: TO DETERMINE: The range…

Q: 9) A 1300 kg car moving on a horizontal surface has speed v= 77 mile/h when it strikes a horizontal…

A: Spring mass system.

Q: PROBLEM 2.52 Two forces P and Q are applied as shown to an aircraft connection. Knowing that the…

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Q: Digital mammography uses much lower X-ray energies than standard X-ray scans, and is used to obtain…

A: The answer is False In digital mammography, the conventional photographic X-ray film is replaced by…

Q: The angular position of a rotating object as a function of time is given below: 0(t) = 3 t³ + 5t² =…

A: Solution:-  Given;             θt=3t3+5t2-2t+2         Here,θ is radians and t…

Q: J5

A: Given that:-Current, I=5AMagnetic field, B=0.2nTn=1We know that,Magnetic field center of the…

Q: *Question 345b: Latent Heat of Fusion A 5 g lead bullet moving at 294 m/s is stopped in a block of…

A: Kinetic energy of the bullet is  K= 12mv2=12×(5×10-3)×(294)2=216.09 J The energy lost in fusion with…

Q: 4.2 Let denote the translation operator (displacement vector d), (,) the rotation operator (n and…

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Q: Two masses of 2.50 kg and 6.00 kg are connected by a light string that passes over a frictionless…

A: The two masses are attached to one another by a single string. Both the masses are acted upon by a…

Q: A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a 35.0 N…

A: The work done on the cart by friction. Given, Frictional forceFfric=35.0 NDistance movedd=20.0…

Q: What is the net work done from the forces acting on the box to move it a distance of 3 meters on the…

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Q: Tabulate the components and determine the resultant (magnitude and direction) of the given system of…

A: Here we have the component of FA along positive x direction is FAx=-50cos(30o)=-43.30127 Newton the…

Q: A block of mass m slides down from the top of an inclined plane. The inclined plane has an angle of…

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Q: A 10 cm long core sample with a 1 inch (2.54 cm) diameter is sampled from a reservoir.…

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Q: Plot the magnitude of the resultant R of the three forces as a function of for 0≤ 0≤360°. After you…

A: Given that the magnitude of forces are F1=51NF2=126NF3=73N And the angles ϕ=65oψ=24o   We have to…

Q: An automobile battery has an emf of 12.60 V and an initial resistance of 0.054 0 Mill The headlights…

A: Given: The emf is 12.60 V.             The initial resistance is 0.054 Ω.            The equivalent…

Q: Q12-The Higher frequency the is the attenuation coefficient there fore the greater attenuation O…

A: Attenuation is a term used with signal travelling. It is the reduction of signal strength while it…

Q: Part (a) Express the resistance Ro of one of the resistors in terms of the resistivity p, length Z,…

A: When two resistances R1 and R2 are connected in series, the net resistance is given by  R=R1+R2 It…

Q: Two wire transmission line whose cross section is illustrated below. Each wire is having a diameter…

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Q: A hotel builds a water (1.00 g/cm³) fountain that is fed by a din = 13.8 cm diameter cylindrical…

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Q: Q16-The speed of light ---------when it goes from another medium

A: The speed of light in medium is    v=cn Here c is the speed of light and n is the refractive index.

Q: A certain amount of heat heats 5 grams of substance A by 10 degrees and 5 grams of substance B by 12…

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Q: V 25. In the circuit of Figure P27.25, the switch S has been open for a long time. It is then…

A: a Time constant before switch is closed,Resistance R1 and R2 are in…

Q: PEWAR Consider the following distribution of objects: a 2.00-kg object with its center of gravity at…

A: **As per our company guidelines we are supposed to solve only one question (if there are multiple…

Q: Calculate the gravitational acceleration at the surface of the super-Earth COROT 7b which has a mass…

A: The gravitational force of an object is directly proportional to its mass. Thus massive objects like…

Q: 4.7 a. Let y(x.t) be the wave function of a spinless particle corresponding to a plane wave in three…

A: Solution:-a).      ψ(x,t)=expi(k.x-wt)           ω*(x,-t)=exp-i(k.x+wt)     ψ*x,t=expi-k.x-wt…

Q: - The reason that we use vacuum pump in Rutherford Exp. Is A-To eliminate the noise of the signal B-…

A: In the Rutherford experiment, it showed us that the atom was mainly an empty space with the nucleus…

Q: Two cars, a Porsche Boxster convertible and a Toyota Scion xB, are traveling at constant speeds in…

A: a) In position-time graph, the position will be taken on the y-axis and time will be on the x-axis.…