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A mass m1=4.10kg block on a smooth tabletop is attached by a string to a hanging block of mass m2=2.60kg, as shown in the figure. The blocks are released from rest and allowed to move freely. Find the magnitude of the acceleration of the blocks.
assume that friction is so small that it can be ignored. a force toward the right of constant magnitude is applied to
A 0.4 guitar string is vibrating in its fundamental frequency. The maximum acceleration of a point at the middle of the string is 8400m/s^2 amd the maximum velocity of that point is 3.80m/s. What is the amplitude of the wave? what is the wave speed..
question1an observer moving at a speed of 0.995c relative to a rod measures its length to be 2.00 m and sees its length
Two toroidal solenoids are wound around the same form so that the magnetic field of one passes through the turns of the other.Solenoid 1 has 690 turns and solenoid2 has 400 turns.
A 78 g ice cube at -18°C is placed in a lake whose temperature is 12°C. Calculate the change in entropy of the cube-lake system as the ice cube comes to thermal equilibrium with the lake. The specific heat of ice is 2220 J/kg·K. (Hint: Will the ice c..
what is the minimum coating thickness that will minimize the reflection at the wavelength of 704 where solar cells are
A metal surface has a photoelectric cutoff wavelength of 326.0 nm. It is illuminated with light of wavelength 255.4 nm. What is the stopping potential
Consider the driven, damped harmonic oscillaror discussed. (a) Calculate the power dissipated by the damping force. (b) Calculate the average power loss, using the fact that the average of sin2( ?t+?) over a cycle is one-half.
The emissivity of the human skin is 97.0 percent. Use 35.0 °C for the skin temperature and approximate the human body by a rectangular block with a height of 1.61 m, Calculate the power emitted by the human body
The nickel's image has1.8times the diameter of the nickel and is2.75cm from the lens. Determine the focal length of the lens.
A He-Ne laser produces light of wavelength 633 nm with intensity 1.02 103 W/m2, over a beam of cross-sectional area 0.940 mm2. How many photons per second are emitted by the laser?
What is the total translational kinetic energy in a test chamber filled with nitrogen (N2) at 2.22×105 Pa and 20.7°C? The dimensions of the chamber are 1.00 m × 4.30 m × 6.50 m. The ATOMIC weight of nitrogen is 28.0 g/mol, Avogadro's number is 6.022 ..
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