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A 2.4 g marble is fired vertically upward using a spring gun. The spring must be compressed 8.0 cm if the marble is to just reach a target 20 m above the marble's position on the compressed spring. (a) What is the change ?Ug in the gravitational potential energy of the marble-Earth system during the 20 m ascent? (b) What is the change ?Us in the elastic potential energy of the spring during its launch of the marble? (c) What is the spring constant of the spring?
A certain man has skin tissue with the following characteristics: thickness of skin tissue, 3.88mm; surface area, 1.75m^2. estimate the temperature at the surface of the mans skin
An RLC circuit is set up with a 350 mH inductor, a 6.8 mF capacitor and a 550 W resistor. Sketch the phasor diagram for this circuit
A non-isotropic two-dimensional solid has a coefficient of linear expansion alone one axis equation to A and along a perpendicular axis equation to B
A physics book slides of a horizontal tabletop wit a speed of1.10m/s. it strikes the floor in 3.50s ignore air resistance. calculate the heigth of the table top above the floor
The pilot of an airplane notes that the compass indicates a heading due west. The plane's speed relative to the air is 150 km/h. Find the velocity of the airplane relative to the ground
A 2.90 m long, 320 kg steel beam extends horizontally from the point where it has been bolted to the framework of the new building under construction. A 66 kg construction worker stands at the far end of the beam.
Consider a mountain range that has been uplifting at a rate of 10 m/Myr for the past 5 Myr, the mountain range to come into a steady state with tectonic uplift, Estimate the soil thickness on the side of the mountain
An insect sits on the edge of a spinning record that has a radius of 0.15 m. The insect%u2019s speed is 0.6 m/s. What is the insect's acceleration
A 750 air-track glider attached to a spring with spring constant 10.5 is sitting at rest on a frictionless air track. What is the amplitude of the subsequent oscillations
Two polarizers are out of alignment by 22.1°. If light of intensity 1.00 W/m2 and initially polarized halfway between the polarizing angles of the two filters passes through the two filters
After being accelerated to a speed of 1.84×105, the particle enters a uniform magnetic field of strength 1.00 and travels in a circle of radius 35.0. The results of this experiment allow one to find.
A steel cable with a total length of 27.7 m and total mass of 91 kg is connected to two poles. Calculate the wavelength of the resulting wave on the cable
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