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Determine the apparent thickness of the plate as observed from above the water. (Suppose just about normal incidence of light rays.)
A candle having a flame 2.3 cm tall is positioned 3.6 cm from the front of a concave mirror. A virtual image is made 10 cm behind the mirror. i) Determine the focal length of the mirror.
A clean sodium surface is illuminated through ultraviolet light. No photo-electrons are ejected till the wavelength of the incident UV light falls beneath 544 nm. (i) Determine the work function (in
An infrared laser of 200 W releases photons having a wavelength of 8.90e-7 m and an ultraviolet light of 200 W releases photons having a wavelength of 2.29e-7 m. i) Determine the energy of the singl
No heat is transferred to the water throughout the experiment. The specific heat of the water is around 4190 J/kg-K. Determine the specific heat of the unknown mass?
A scallop forces open its shell having an elastic material termed as abductin, whose elastic modulus is around 2.0 x 106 N/m2. When this piece of abductin is around 2.7 mm thick and consists of a cros
For the sharpest image, light from the distant point source makes as small a spot on the film as possible. Determine the optimum size of the hole for a camera in which the film is around17 cm from t
Determine the length of a box in which the difference among an electron's first and second allowed energies is around 1.20 x 10^-19 J?
One lens consists of a focal length of +15.0cm. A second lens of focal length +20.0cm is positioned in contact with the first lens. Determine the equivalent focal length of the combination of lenses
Find out the average velocity of the fish for the whole process of jumping and swimming underwater.
An object on a frictionless horizontal surface osculates at the end of a spring with the amplitude of 4.5cm. Its net mechanical energy is 1.4J. Determine the force constant of the spring?
As the bucket continues to rotate, compute the speed of the bucket at the bottom (lowest point in the circle by using the conservation of energy.
Amanda applies a horizontal force of 180 N on a piece of rope causing the two blocks of mass 20 Kg and 40 Kg to accelerate. Friction on the blocks is negligible. Determine the tension force at X in
In a simple model of the hydrogen atom, the electron rotates in a circular orbit around the proton having a speed of 2.2 * 10^6 m/s. Find out the radius of the electron's orbit.
Compute the apparent thickness of the plate as viewed from above the water. (Suppose almost normal incidence of light rays.)
Compute the electric field (magnitude and direction) at the upper right corner of a square 1.22 on a side when the other three corners are occupied through 2.45 × 10-6 charges. Suppose that th
A lens consists of a focal length of f = +10.0cm. When an object is positioned 30.0 cm from the lens, where is the image formed? Is the image virtual or real?
Assume that a child that consists of a mass of 15 kg is walking from the center of the board in the direction of the right end. Determine how close to the right end of the board do you think this ch
A pendulum comprises of a stick of length L and mass M which is pivoted regarding one end, and joined to a spring of stiffness k a distance l from the pivot. (i) Determine the natural angular freque
Assume that you hold a box which weighs 0.890 kg with your arm extended to a distance of around 0.665 m from your shoulder joint, determine what torque do you think the box applies on that joint?
Determine the magnitude and direction of the total electrostatic force acting on the charge at the center? State the direction relative to due east (in the direction of right) (0°)
A yacht consists of its center of mass 2.60 m behind the front of the yacht. If the two people sit in the front seat of this yacht, 2.60 m from its front and three people sit in the back seat of the
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A big cannon is assembled on an airless planet. The planet consists of a radius of 5.0*10^6 m and a mass of 2.6*10^24 kg. The cannon fire a projectile straight up at around 4800 m/s. Part I: Determ
The target then travels a distance of 7.6 m before it lastly comes to rest. Therefore, if the coefficient of kinetic friction is then 0.15, then what would have been the speed of the arrow just befo