A boat can move at 30.0 km/h in still water. How long will it take to move 12 km downstream in a river flowing 6.0 km/h? (20 min) V A ship is moving at a speed of 56 km/h. One second later, it is moving at 58 km/h. What is its acceleration in m/s. (0.555 m s-2)

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A: Given data : Speed=V Mass=m   To find : Kinetic energy of skater

Q: energy gap of (1.81 eV) is equivalent to: O (2.9 * 10-19) Joules O (2.7* 10^19) Joules O (3.1* 1019…

A: as per guideline I am solving the first one, we know that 1 eV=1.6022 *10^-19 J

Q: Problem 26.36 When laser light of wavelength 632.0 nm passes through a diffraction grating, the…

A: Given:  In this question, the given details are, When laser light of wavelength 632.0 nm passes…

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A: Given data :             Distance = d              Time  = t       To find  :               Speed

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A: Given data:  Automobile travels on Straight road First 45 km at 36 km/h Then 45 km at 72 km/h, in…

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A: a) x, L2=x, Lx2+LY2+LZ2            =x, Lx2+x,Ly2+x,Lz2            =x, LxLx+Lxx, Lx+x, LyLy+Ly[x,…

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A: Given that,The radius : r = 18 (cm) = 0.18 (m)Angular speed : ω0 = 11 (rad/sec)Angular acceleration:…

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A: Speed of the center of mass. From conservation of energy

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A: Energy gap between (1.2 and 5 )ev Insulator   Diode current is 0.08386mA

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A: En= hω40a+a+40also, we know a n>=nn-1>a+ n>=n+1n+1>a+a+4 can be written as…

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A: Given: Diameter of main pipe, d1 = 5cm = 0.05 m Diameter of faucet, d2 = 2 cm = 0.02 m Height at…

Q: .. A pair of bullocks exerts a force of 140 N on a plough. The field being ploughed is 15 m long.…

A: Work done, W = F.d

Q: e wavelength

A: Given:- ħ (Planck's constant / 2π) = 1.0545718 × 10⁻³⁴ J·s- Effective mass (m) = 0.19 m₀ (where m₀…

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A: It is known that,  y=sin ωt⇒y=sin 2πTt⇒y=sin 2πft Therefore, ω=2πf.

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Q: Calculate the currents Given: E = 5 V, J = 1 A, R1 = 2 N, R2 = 10 UN 0 IN 2 3 4 5 V 1 2 4 7 A

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Q: Suppose you stand with one foot on ceramic flooring and one on a wool carpet, making contact over an…

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Q: Mk=0.7. 10 kg TIR A 10-kg box is at sliding to the right on the floor. A rope is attached to the box…

A: mass of box = m = 10 kg co efficient of friction = 0.7 acceleration = a = 6 m/s2

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A: Consider the ball is thrown to the right (positive) or moving towards is positive  and rebounds to…

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Q: Two wires are tied to the 300 g sphere shown in (Figure 1). The sphere revolves in a horizontal…

A: Given  mass of sphere=0.3 kg speed of sphere =8.3 m/s

Q: End Commutation velationship of positiom and Hamiltonian operadtor %3D

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Q: 1. Want to hit the golf ball onto the green which is 60 ft away and 10 ft high. What is the minimum…

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Q: An astronaut drops a marble on the surface of the airless Planet Z-49 and observes that it takes…

A: Using kinematic equation, h = v0*t+1/2*g*t∧2 2 = 0*t+1/2*g*1.02∧2 g = 4/1.02∧2    = 3.845m/s∧2

Q: At t=0, an object moves with an (a) Determine the magnitude of t 40 ✔ m/s² (b) Determine the…

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Q: A charge q = 2.3 µC is placed at the point P shown below. What is the force on q (in N)? (Assume the…

A: Given that,Charge q1 = 1.7 (μC)Charge q2 = -3.7 (μC)Charge q = 2.3 (μC)Distance between charge q1…

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A: The maxwell  boltzmann   distribution  law holds for classical particles while the fermi dirac and…

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A: mass = m = 1300kg initial speed = Vi= 10 m/s change in momentum = 12, 800 kg-m/s

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Q: 1. A block with mass 750g is thrown from 8m height with initial velocity 10.7 î + 25.5 ĵ and a…

A: Note: 1 g is equal to 0.001 kg.  (a) There is no horizontal force along the horizontal direction, so…

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Q: A tennis ball is tossed vertically upwards and travels a distance of 6.5 m in 1.2 seconds. What was…

A: Given that,Distance : d = 6.5 (m)Time : t = 1.2 (sec)Acceleration : a = -g = -9.8 (m/sec2)Here we…

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Q: Two concentric circular wire loops of radi r = 12 cm and r 24 cm are located in an xy plane, as…

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A: We are given value of resistance. We are also given the voltage across capacitor at given time.  The…