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How do we know that the Earth's interior is made up of heavier elements such as metals? Calculate the average density of the Earth (in g/cm3 ) and compare this answer with the density of water, which is equal to 1 g/cm3 .
An artificial satellite circling the Earth completes each orbit in 128 minutes. (The radius of the Earth is 6.38 106 m. The mass of the Earth is 5.98 1024 kg.), Find the altitude of the satellite
the distance between new york and los angeles is about 5000 km. a jet traveling at a speed of 815 kmhour leaves new
Determine the zero-point energy for an electron in a 1-D box ofdimension L = 10-15m. Suppose that the center of the boxis not at the bottom of an infinite potential well, but rather onethat has a height equal to the strength of the Coulomb attract..
An 80-cm-thick layer of oil floats on a 190-cm-thick layer of water. What is the pressure at the bottom of the water layer
an electric car accelerates for 12 s by drawing energy from its 400-v battery pack. during this time 1200 c of charge
The electric field between the plates of a paper-separated (K=3.75) capacitor is 8.23×104V/m . The plates are 1.90mm apart, Determine the area of each plate
An uncharged solid metal sphere of radius R = 1.72 mm sits with its center at a distance of D = 63.1 cm from two point charges ± q = ± 4.9 × 10^–8 C which form a dipole. The two point charges are separated by a distance d = 8.04\mu m, as shown in the..
The headlights on a certain car are gauged to be 1.1 m apart. The diameter of the pupil in a human eye is 2.5 mm. What is the FURTHEST DISTANCE at which a human eye could clearly see the headlights as 2 separate lights? Utilize a wavelength of 617 nm..
If the initial temperature of the horseshoe is 450 °C, and the initial temperature of the water is 45° C, what is the equilibrium temperature of the system? Presume no heat is exchanged with the surroundings.
An outfielder throws a 0.150 kg baseball at a speed of 42.0 m/s and an initial angle of 30.0°. What is the kinetic energy of the ball
If the height of the candies in the container increases at the rate of 0.306 cm/s, at what rate (in kg/min) does the mass of the candies in the container increase?
Dr. Evil runs out to his car which is parked at the bottom of a hill that is inclined with the horizontal at 20° and blasts up the hill with an acceleration of 6 m/s2. how much time must James wait before firing the mortar
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