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TV broadcast antennas are the tallest artificial structures on Earth. In 1987, a 72.0-kg physicist placed himself and 400 kg of equipment at the top of one 610-m high antenna to perform gravity experiments. By how much was the antenna compressed, if we consider it to be equivalent to a steel cylinder 0.150 m in radius?
A cylindrical container 1.1 tall contains mercury to a certain depth. The rest of the cylinder is filled with water.If the pressure at the bottom of cylinder is two atmospheres, what is the depth.
A straight rod of length L = 22.2 cm, carries a uniform charge, ? = 3.00 × 10-6 C/m, What is the magnitude of the electric field at yP = 50.0 cm
An arrow is shot at an angle such that it's horizontal velocity is 40 m/s, Find the horizontal distance the arrow will travel
A number of people are riding in a hot-air balloon. The combined mass of the people and balloon is 281 kg. The balloon is motionless in the air, since the downward-acting weight of the people and balloon is balanced by an upward-acting 'buoyant' f..
A spherical balloon of volume 4.03 x10^3 cm3 contains helium at the pressure of 1.15 x10^5 Pa. How various moles of helium are in the balloon if the average kinetic energy of the helium atoms is 3.60 x10-22 J.
Light is diffracted when it passes through a narrow single slit. What happens to the width of the central maximum in the diffraction pattern when the width of the slit trough which light passes is reduced.
In the Millikan oil-drop experiment, an atomizer (a sprayer with a fine nozzle) is used to introduce many tiny droplets of oil between two oppositely charged parallel metal plates.
A beam of light in air strikes a piece of glas (n = 1.59), Find the angle of incidence if the angle of reflection is twice the angle of refractio
The bullet becomes embedded in the block. If the bullet-block system compresses the spring by a maximum of 88.0 cm, illustrate what was the speed of the bullet at impact with the block?
A series RLC circuit has components with the following values: L = 18.0 mH, C = 90.0 nF, R = 10.0 ?, and ?Vmax = 100 V, with ?v = ?Vmax sin ?t. Find the resonant frequency of the circuit
If a car traveling at 55 km/h will skid 24 m while its brakes lock, how far will it skid if it is traveling at 130 km/h when its brakes lock.
When a certain spring is stretched by an amount x, it produces a restoring force of F(x) = ax=bx^2, where a and b are constants. How much work is done through an external force in stretching the spring by an amount D from its equilibrium length.
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