Q: From first principles, show that the force a flow of fluid exerts on an object isF = m(U −V) ,wherem…
A: The objective of the question is to derive the equation for the force exerted by a fluid flow on an…
Q: 2. (15 pts) A resistor is made of tungsten, which has a resistivity of 5.6 2 m, a temperature…
A:
Q: How much energy is stored in an inductor ?
A: Step 1: The energy stored in an inductor is given by the formula:Where:E is the energy stored in the…
Q: A starship voyages to a distant planet 10 ly away. The explorers stay 4.0 yr, return at the same…
A:
Q: 2) An electron in a hydrogen atom is in the initial state ni= 4. Calculate the wavelength of the…
A: Step 1:Initial state of an electron is 4Step 2:The wavelength of the photon emitted will…
Q: Please solve fast with explanation and check answer
A: To solve this problem, we'll follow these steps:Find the ground state energy without the interaction…
Q: Problem 6.12 An infinitely long cylinder, of radius R, carries a “frozen-in” magne- tization,…
A: Step 1: Step 2: Step 3: Step 4:
Q: Hurry-no much time
A:
Q: A microscope has a 1.9-cm-focal-length eyepiece and a 0.70-cm objective. Assuming a relaxed normal…
A: Step 1:Step 2:Step 3:
Q: Hurry, show work in paper sheet stop using Ai
A:
Q: A wind generator can charge 22 storage batteries in 24 hours. After the generator has been charging…
A: The objective of the question is to find out how many additional hours are needed to charge the 22…
Q: In a Young's double-slit experiment, a set of parallel slits with a separation of 0.138 mm is…
A: Step 1Given data in the question :d=0.138 mmλ = 559 nm Step 2Path difference, ∆x = nλ for bright…
Q: Name: Section: Grade 9 Science: PHET Projectile-motion Lab Link:…
A:
Q: A simple pendulum is suspended from the ceiling by means of a string of length 1.02 m. Assume that…
A: Approach to solving the question:Please see attached photos for detailed solutions. Thank you.…
Q: A virtual image is formed 16.0 cm from a concave mirror having a radius of curvature of 45.0 cm. (a)…
A: Step1: Use the "uv" method image object relation formula1/u+1/v=2/rwhere u is the object's distance…
Q: A 2.71-cm high insect is 1.44 mm from f = - 135mm. How high is the image? Express your answer with…
A: Step 1:Step 2:Step 3:Step 4:
Q: I just need part C. I do not know where to start.
A: Step 1: Determine the acceleration in the x- and y-direction…
Q: The magnetic field of an electromagnetic wave is described by By = B0cos(kx - ωt), where B0 = 5.5 ×…
A:
Q: Irot Find current potential difference across resistor (Place results in table Series 2. 15.2 1. ar…
A:
Q: A uniform 1200 N beam that is 3.50 m long is suspended horizontally by two vertical wires at its…
A:
Q: 7 max Factrer Electrons are accelerated from rest in an electron gun between two plates that have a…
A: Old trajectory of electron is parabolic in shape when magnetic field is absent and when magnetic…
Q: Please sir sollllveee this question, thanksss
A: Hope this helps!
Q: Please solve this and show the steps
A: Step 1: Step 2: Step 3: Step 4:
Q: In the figure a 54 kg rock climber is in a lie-back climb along a fissure, with hands pulling on one…
A: Step 1: Step 2: Step 3: Step 4:
Q: 15 The surface temperature on Venus may approach 735 K. What is this temperature in degrees Celsius?…
A: Step 1: Temperature on venus Step 2: Temperature on mercury
Q: A bullet of mass 3.1 g strikes a ballistic pendulum of mass 4.1 kg. The center of mass of the…
A: Given values:m = 3.1 g = 3.1 x 10-3 kgM = 4.1 kgh = 11 cm = 0.11 m Introduction:First, calculate…
Q: An object is placed 85 cm from a glass lens (n = 1.52) with one concave surface of radius 23.0 cm…
A:
Q: can you please help i have started but am lost plz type equations in word
A: Given: Flow rate = 6 liter/sec water P1= 325 kPa d1 = 0.07m Z= 15 m d2 = 0.12 m…
Q: solve all of it i will give you an upvote
A: Answer (14-16) Answer (19-20)
Q: Solve all of them i will give you an upvote
A: Answer 4 Answer 5,6 Answer 10,11,12,13
Q: 4
A:
Q: In a location where the speed of sound is 346 m/s, a 2,000 Hz sound wave impinges on two slits 30 cm…
A:
Q: iron's specific heat is 450 J/kgC. Aluminum's specific heat is 900 J/kgC. A piece of iron weighing…
A: 1. Calculate Heat Lost by Iron:Iron mass (m_iron) = 310 g (convert to kg for specific heat: m_iron =…
Q: A skier (68 kg) is on a ramp that is inclined at an angle of 20 degrees. The height of the ramp is…
A: To find how far the skier travels horizontally before landing, we can use the horizontal component…
Q: 8
A:
Q: At the top of Earth’s atmosphere, the time-averaged Poynting vector associated with sunlight has a…
A:
Q: A 0.40 kg iron hook is forged and dropped into 1.25 L of water in a 0.31 kg iron pot at 20 degrees…
A: Step 1:Step 2:
Q: Clearly explain the solution
A: Step 1:Step 2:
Q: An interference pattern is set up by two point sources of the same frequency, vibrating in phase. A…
A: The objective of the question is to calculate the wavelength and the frequency of the sources. The…
Q: Redraw the circuit as 300 40-2 19 v 150 252 52 circuit diagram. 15.2
A:
Q: 3. A compound microscope consists of two lenses (the objective and the eyepiece) enclosed in a…
A: Based on your description of the image and the question about a hypothesis test, here's how to…
Q: PLS HELP ASAP ON ALL OF THE Q
A:
Q: Two blocks are connected by a lightweight string passing over a pulley, as shown in the figure…
A:
Q: 4. Two parallel conducting plates each have a surface area of 0.500 m² and are oppositely charged.…
A: I can help you analyze its stability.Predator-Prey Model Analysis:The system of differential…
Q: A positively-charged object with a mass of 0.188 kg oscillates at the end of a spring, generating…
A:
Q: Consider a solenoid that is 15 cm long and 3 cm in diameter, with N = 500 turns. What value of…
A: To find the current required to produce a magnetic field of magnitude B=1.0T inside the solenoid,…
Q: can you explain how the last question's answer is 7.49?
A:
Q: Chapter 20: Problem 3: Suppose you have a car with a battery that applies 10.5 V to the starter. a)…
A: Given: The potential across the battery is, V = 10.5 VThe current flow is, I = 170 A Therefore, from…
Q: 3&4
A: 3. Step 1: Given, fo=84cm, fe=2.6 cm Step 2: Substitute fo and fe in the formula M=fefo and…
Q: The four particles shown below are connected by rigid rods of negligible mass where y₁ = 5.40 m. The…
A:
Consider a force in R33 defined by F(x,y,z)=(4xy2,4x2y+2y,0) Find the potential energy U(x,y,z) such that U(0,0,0)=0.
Unlock instant AI solutions
Tap the button
to generate a solution
Click the button to generate
a solution
- A light spring is attached to a block of mass 4m at rest on a frictionless, horizontal table. A second block of mass m is now placed on the table, in contact with the free end of the spring, and the two blocks are pushed together (Fig. P10.78). When the blocks are released, the more massive block moves to the left at 2.50 m/s. a. What is the speed of the less massive block? b. If m = 1.00 kg, what is the elastic potential energy of the system before it is released from rest? FIGURE P10.78A particle moves in the xy plane (Fig. P9.30) from the origin to a point having coordinates x = 7.00 m and y = 4.00 m under the influence of a force given by F=3y2+x. a. What is the work done on the particle by the force F if it moves along path 1 (shown in red)? b. What is the work done on the particle by the force F if it moves along path 2 (shown in blue)? c. What is the work done on the particle by the force F if it moves along path 3 (shown in green)? d. Is the force F conservative or nonconservative? Explain. FIGURE P9.30 In each case, the work is found using the integral of Fdr along the path (Equation 9.21). W=rtrfFdr=rtrf(Fxdx+Fydy+Fzdz) (a) The work done along path 1, we first need to integrate along dr=dxi from (0,0) to (7,0) and then along dr=dyj from (7,0) to (7,4): W1=x=0;y=0x=7;y=0(3y2i+xj)(dxi)+x=7;y=0x=7;y=4(3y2i+xj)(dyj) Performing the dot products, we get W1=x=0;y=0x=7;y=03y2dx+x=7;y=0x=7;y=4xdy Along the first part of this path, y = 0 therefore the first integral equals zero. For the second integral, x is constant and can be pulled out of the integral, and we can evaluate dy. W1=0+x=7;y=0x=7;y=4xdy=xy|x=7;y=0x=7;y=4=28J (b) The work done along path 2 is along dr=dyj from (0,0) to (0,4) and then along dr=dxi from (0,4) to (7,4): W2=x=0;y=0x=0;y=4(3y2i+xj)(dyj)+x=0;y=4x=7;y=4(3y2i+xj)(dyi) Performing the dot product, we get: W2=x=0;y=0x=0;y=4xdy+x=0;y=4x=7;y=43y2dx Along the first part of this path, x = 0. Therefore, the first integral equals zero. For the second integral, y is constant and can be pulled out of the integral, and we can evaluate dx. W2=0+3y2x|x=0;y=4x=7;y=4=336J (c) To find the work along the third path, we first write the expression for the work integral. W=rtrfFdr=rtrf(Fxdx+Fydy+Fzdz)W=rtrf(3y2dx+xdy)(1) At first glance, this appears quite simple, but we cant integrate xdy=xy like we might have above because the value of x changes as we vary y (i.e., x is a function of y.) [In parts (a) and (b), on a straight horizontal or vertical line, only x or y changes]. One approach is to parameterize both x and y as a function of another variable, say t, and write each integral in terms of only x or y. Constraining dr to be along the desired line, we can relate dx and dy: tan=dydxdy=tandxanddx=dytan(2) Now, use equation (2) in (1) to express each integral in terms of only one variable. W=x=0;y=0x=7;y=43y2dx+x=0;y=0x=7;y=4xdyW=y=0y=43y2dytan+x=0x=7xtandx We can determine the tangent of the angle, which is constant (the angle is the angle of the line with respect to the horizontal). tan=4.007.00=0.570 Insert the value of the tangent and solve the integrals. W=30.570y33|y=0y=4+0.570x22|x=0x=7W=112+14=126J (d) Since the work done is not path-independent, this is non-conservative force. Figure P9.30ANSA mysterious force acts on all particles along a particular line and always points towards a particular point P on the line. The magnitude of the force on a particle increases as the cube of the distance from that point; that is Fr3 , if the distance from P to the position of the particle is r. Let b be the proportionality constant, and write the magnitude of the force as F=br3. Find the potential energy of a particle subjected to this force when the particle is at a distance D from P, assuming the potential energy to be zero when the particle is at P.
- In three cases, a force acts on a particle, and the particle is displaced from an initial position to a final position. Figure 9.11 (page 255) shows the position-versus-force graphs, indicating the initial and final positions of the particle in each case. Find the work done by the force on the particle and sketch the force and displacement vectors along with the appropriate axis in each case.A small object is attached to two springs of the same length l, but with different spring constants k1 and k2 as shown in Figure P9.31. Initially, both springs are relaxed. The object is then displaced straight along the x axis from xi to xf. Find an expression for the work done by the springs on the object.A small particle of mass m is pulled to the top of a friction less half-cylinder (of radius R) by a light cord that passes over the top of the cylinder as illustrated in Figure P7.15. (a) Assuming the particle moves at a constant speed, show that F = mg cos . Note: If the particle moves at constant speed, the component of its acceleration tangent to the cylinder must be zero at all times. (b) By directly integrating W=Fdr, find the work done in moving the particle at constant speed from the bottom to the top of the hall-cylinder. Figure P7.15
- A block of mass 200 g is attached at the end of a massless spring of spring constant 50 N/m. The other end of the spring is attached to the ceiling and the mass is released at a height considered to be where the gravitational potential energy is zero. (a) What is the net potential energy of the block at the instant the block is at the lowest point? (b) What is the net potential energy of the block at the midpoint of its descent? (c) What is the speed of the block at the midpoint of its descent?A helicopter rescues a trapped person of mass m = 65.0 kg from a flooded river by lifting the person vertically upward using a winch and rope. The person is pulled 12.0 m into the helicopter with a constant force that is 15% greater than the persons weight. a. Find the work done by each of the forces acting on the person. b. Assuming the survivor starts from rest, determine his speed upon reaching the helicopter.A train moves along the tracks at a constant speed u. A woman on the train throws a ball of mass m straight ahead with a speed υ with respect to herself. (a) What is the kinetic energy gain of the ball as measured by a person on the train? (b) by a person standing by the railroad track? (c) How much work is done by the woman throwing he ball and (d) by the train?
- Consider a particle moving in the region x > 0 under the influence of the potential where U0 = 1 J and α = 2 m. Plot the potential, find the equilibrium points, and determine whether they are maxima or minima.(a) A force F=(4xi+3yj), where F is in newtons and x and y are in meters, acts on an object as the object moves in the x direction from the origin to x = 5.00 m. Find the work W=Fdr done by the force on the object. (b) What If? Find the work W=Fdr done by the force on the object if it moves from the origin to (5.00 m, 5.00 m) along a straightline path making an angle of 45.0 with the positive x axis. Is the work done by this force dependent on the path taken between the initial and final points?(a) Suppose a constant force acts on an object. The force does not vary with time or with the position or the velocity of the object. Start with the general definition for work done by a force W=ifFdr and show that the force is conservative, (b) As a special case, suppose the force F =(3i + 4j)N acts on a particle that moves from O to in Figure P7.43. Calculate the work done by F on the particle as it moves along each one of the three paths shown in the figure and show that the work done along the three paths identical.