the velocity vectors pointing left are negative. what does the negative sign represent

Q: hollow sphere with a radius of 0.24m, rolls down a 3.28m high ramp without slipping. If has an…

A: Givenm=0.82 kgr=0.24 mh=3.28 mω=0.37 rad/s

Q: Example 1: Two curling stones, of mass 19.5 kg collide. The first stone hits the second, stationary,…

A: mass of first stone = 19.5 kg mass of second stone = 19.5 kg initial velocity of first stone = 5 ms…

Q: Find the gravitational potential energy of a light that a mass of 14 kg and is 5 m above the ground…

A: Given data :  Mass    =    m  Height   =    h   Gravitational pull   =  g        To find :…

Q: A spider walks on a path that is at 25 ∘. Calculate the power output of a 0.42g spider as it walks…

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Q: In a gas that is a mixture of water (two H and one O) and carbon dioxide (one C and two O), if the…

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Q: In a sinusoidal voltage/current At what angles, or angles, is the voltage/current increasing at its…

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Q: To remove the least tiny bound electrons from a metal surface, a 4.8 eV is needed. When ultraviolet…

A: Given data:  Work function (W0) = 4.8 eV Maximum kinetic energy of ejected electrons KEmax = 3.6 eV…

Q: Physics written by hand.

A: We need to find the angular acceleration of disk.

Q: 2. Two 4 uC point charges blocks are 1-m apart at coordinate (x, y) = (0m,0m) and (1 m, 0 m)…

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Q: A double-slit arrangement produces bright interference fringes for sodium light (A= 647 nm) that are…

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Q: (3) A student said "electric potential is always proportional to poten tial energy; why bother with…

A: The electric field, as we all know, is a conservative field. We also know that the electric field is…

Q: Please help me answer these following questions. Thank you! ILLUSTRATE ELASTIC COLLISION FROM…

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Q: A dog initially at rest, starts running inside a circular track with a 40π m circumference. The…

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Q: "Two charges q1 = 2.0 nC and q2 = 9.0 nC are placed at (x = 2.0 m, y = 0) and (x = 0, y = 8.0 m)…

A: first charge (q1) = 2 nC second charge (q2) = 9 nC position of first charge = (2,0) m position of…

Q: like magnetic field can be considered as a bar magnet. Suppose, we have such a bar magnet. We will…

A:

Q: wavelength 0.400 m. The waves travel in the -x-direction, and at t=0, the x=0 end of the string has…

A: Answer

Q: 3. In a single-slit diffraction experiment, there is a minimum of intensity for orange light at 600…

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Q: How much electrical energy (in kilojoules) is transferred to thermal energy in 2.16 hours by an…

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Q: A 531.0-nm light source illuminates two slits with a separation of 6.00 x 10-4 m, forming an…

A: The intesity comapared to that of the central maximum is 0.945 Imax

Q: Please show work and explain!

A:

Q: During a test, a rocket travels upward at 75m/s, and when it is 40m from the ground its engine…

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Q: 18.) At room temperature, an oxygen molecule, with mass of 5.31×10−26kg, typically has a kinetic…

A: 18) If m be the mass & v be the speed of the oxygen molecule then its kinetic energy is…

Q: 6. What are (a) the Compton shift A2, (b) the fractional Compton shift A/2, and (c) the c AEphoton…

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Q: WHAT IS THE RELATIONSHIP BETWEEN LINEAR AND ANGULAR KINEMATICS?

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Q: k) What is the centripetal acceleration of the object? (with reference to the tension in f)

A: According to the Newton's second law Net force = ma where m is the mass of the object and a is the…

Q: Find the orbital speed of a satellite in a circular orbit 3.30×107 mm above the surface of the…

A: Given, satellite is orbiting in a circular orbit, h = 3.30 ×107 m

Q: A mirror formed a virtual image half the size of the object. The object and image arE

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Q: 1. A research Van de Graaff generator has a 2.00 m diameter sphere with a charge of 10 00 mC on it.…

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Q: Determine the number of reflections (N) if the crystal is 65 mm long and 25 mm wide.thickness at 42°…

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Q: You desire to observe details of the Statue of Freedom, the sculpture by Thomas Crawford that is the…

A: Given Angular magnification = - 5.65 Focal length of the objective lens = 90.1 cm To find out  The…

Q: Questions: 1. How do you describe the height reached by the projectile at different projection…

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Q: Show your solution A 30-cm long solenoid is made by winding 2 000 loops of wire around an iron rod…

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Q: upright object is 50cm from a converging lens of focal length 30cm. What is the image distance from…

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Q: hat all frictional forces may be ignored. A) What

A: Givenm=1400 kgP=42 hpv=10 m/s

Q: An upright object 3.0cm high is 20cm from the left of a concave mirror whose radius of curvature R =…

A:

Q: The diagram below shows three masses at the corners of a square of sides d = 5.10 m. Here, m, = m, =…

A: Solution:-

Q: 4) Based on your estimate of the half-life of BCTCesium, suppose a BCT student is cleaning up a lab…

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Q: 1) Near the end of the Shockwave ride, a braking system exerts an applied force upon the coaster car…

A: 1- To discuss the type of work that a braking system exerts an applied force upon the coaster car to…

Q: The mass of an electron is 5x10 ^ 10 kg and its charge is 1.6x10 ^ -19 C C. For an accelerating…

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Q: An RLC series circuit has a 1.00 kΩ resistor, a 150 mH inductor, and a 25.0 nF capacitor. (a) Find…

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Q: When a region of a molecular cloud collapses, a protostar is formed. How do the temperature and…

A: Protostars form primarily in the spiral arms of galaxies in the modern era, which spans at least the…

Q: Suppose you want to build a musical instrument with a hollow pipe that is open at one end and closed…

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Q: A man 6 ft tall is walking at the rate of 3 ft/sec toward a streetlight 20 ft high. At what rate (in…

A: Given : BC = 6 ftDE = 20 ftdx2dt=3 ft/s

Q: Consider a glass block that is 0.6 mm thick and has a refractive index of 1.55. How long will it…

A: thickness of glass block (t) = 0.6 mm refractive index of glass (n) =1.55

Q: h) What is the maximum velocity the object can i) What is the frequency of the object? (With be…

A:

Q: The microwaves in an oven are of a specific frequency that will heat the water molecules contained…

A: Dear student The energy of photons is given by: E = hv Here, h = plank's constant v = frequency of…

Q: Pls help ASAP. Pls show all work.

A: Your answer is option (b).

Q: Q10. A 3-kg Academy sign is hung from a 1-kg, 4-meter horizontal pole as shown. The sign is hung…

A: Given mass 3kg and we have to find the tension in fire.

Q: Millimeter-wave radar generates a narrower beam than conventional microwave radar, making it less…

A:

Q: A -6nC particle is moving at 4.0x10^4 m/s along the positive z-axis. It passes a region undeflected…

A: Change on particle = -6nC Velocity of particle = 4×104 m/s K^ Electric field = 5.57×105 N/C

Projectile Motion