In a volcanic eruption, 4 km3 of a mountain with a density of 1600 kg/m3 was lifted an average height of 490 m.
1)
(a) How much energy in joules was released in this eruption?
In a volcanic eruption, 4 km3 of a mountain with a density of 1600 kg/m3 was...
In a volcanic eruption, a 2.0 kg piece of porous volcanic rock is thrown vertically upward with an initial speed of 44 m/s. It travels upward a distance of 47 m before it begins to fall back to the Earth. 1) (a) What is the initial kinetic energy of the rock? (in J) 2) (b) What is the increase in thermal energy due to air friction during ascent? (in J) 3) (c) If the increase in thermal energy due to...
Suppose an explosive volcanic eruption throws a 1 ton (about 1000 kg) rock vertically upward with a velocity of 200 m/s. This recoils the earth. With what velocity would the earth get pushed down (velocity of earth immediately after the eruption)? Mass of the earth 5.972 x 10^24 kg
5. Evaluating Volcanic Risks at Mountain View. The volcano near Mountain View, WA (Mt. Ataneq), was last active in 1850. The 1850 vent is now filled by a small, steaming crater lake (to the west of the summit). Prehistoric vents form the summit of the volcano, which is now covered by glaciers. If Mt. Ataneq erupts, you need to know what the risks are to the town of Mountain View (and your business) and surrounding towns (Baker City, Hoodtown) who...
a) A block of wood (density 600 kg / m3) has a length of 40 cm, a width of 30 cm and a height of 20 cm How much percentage of the total volume is submerged in oil of density 950 kg / m ^ 3? b) Force required to remove a circular plug of 0.02 meters radius from a bathtub whose water level is 0.5 m high with respect to the bottom of it? Consider the density of water...
The density of air at standard temperature and pressure (STP) is 1.20 kg/m3. If the density of helium is 0.179 kg/m3 inside a perfectly spherical balloon of radius 5.00 m, how much mass, in kg, could this balloon carry?
The mile high city of Denver, Colorado is at an altitude of 1600 m above sea-level. (a) Make the assumption that the density of air (1.2 kg/m3 ) is constant versus height to estimate the air pressure in Denver. (b) You decide to impress your Rocky Mountain friends by showing how you can use a long straw. How low does the pressure need to be in your lungs to use a straw that is 1.5 m long (assume you are...
A 10cmx10cmx10cm cube of density 650 kg/m3 and is submerged in a container filled with water of density 1000 kg/m3. It is initially held at rest by a string which is attached to the bottom of the container, as shown in the figure. When we cut the string, the cube starts moving upwards. Find the initial acceleration of the cube, immediately after it is released. Answer in units of m/s2.
Create a bucket by rotating around the y-axis the curve y=5ln(x−4) from y = 0 to y = 6. If this bucket contains a liquid with density 720 kg/m3 filled to a height of 2 meters, find the work required to pump the liquid out of this bucket (over the top edge). Use 9.8 m/s2 for gravity. Work =_____ Joules
5 points WORK LIFT PROBLEM An inverted conical tank at a chemical plant has a base radius of 4 m and height of 3 m and is completely filled with liquid nitrogen, which has a density of 808.4 kg/m3. The Earth's gravitational constant is -9.8 m/s2. How much work is needed to pump all of the liquid nitrogen up through an outflow pipe that empties 3 meters above the top of the tank? (Note that the conical tank is opening...
Please Help!!!!!! QUESTION 13 Given the density of air near the Earth's surface as 1.1839 kg/m3, how much (in N) is your bathroom scale lying to you if you have a volume of 0.0769 m3 QUESTION 14 A 23 kg block of iron is suspended from a spring with spring constant 96 N/m. It is lowered into a vat of oil (density 0.94 g/cm3) and fully submerged. Given that the density of iron is 7.87 g/cm3, how far (in m)...