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The astronaut's seat is inclined to stay perpendicular to his apparent weight. Calculate the centrifuge's rotational speed v. Answer in units of m/s.
2 Mg + O2 ------> 2MgOif 1.00 g of magnesium is ignited in a flask containing 0.500liters of oxygen at STP, how many grams of magnesium oxide areproduced? What is the name and the amount of the r
The acceleration of gravity is 9.8m/s^2. Determine the magnitude of the acceleration of the 8.22 kg block. Answer in units of m/s^2.
Determine the speed of an electron being emitted by rubidium (2.16 eV) when light of the following wavelengths is shone on the metal in vacuum (a) 550 nm (b) 450 nm and (c) 350 nm.
Determine the difference in potential between two points that are distances R_a and R_b from a very long (\gg R_a or R_b) straight wire carrying a uniform charge per unit length lambda.
2Na + 2H2O -------> 2NaOH + H2if 90.0 grams of sodium is dropped into 80.0 ml of water, how many liters of hydrogen at STP woud be produced? which reactant is in excess and how much of it is lef
The tackler holds onto the receiver, and the two move off together with a velocity of +1.8 m/s. The mass of the tackler is 130 kg. Assuming that momentum is conserved, find the mass of the receiver.
The normal boiling point for acetone is 56.5 degrees celsius. At an elevation of 5300 ft the atmospheric pressure is 630 torr. What would be the boiling point of acetone (delta H vap=32 KJ/mol) at
A car (mass = 1190 kg) is traveling at 44 m/s when it collides head-on with a sport utility vehicle (mass = 2550 kg) traveling in the opposite direction. In the collision, the two vehicles come to a
Two friends, Al and Jo, have a combined mass of 168 kg. At an ice skating rink they stand close together on skates, at rest and facing each other, with a compressed spring between them.
The perimeter, area, and volume of a tetrahedron (the solid whosefaces are 4 equilateral triangles) are respectively: P=6a, A=3 1/2 a2, and V=2 1/2 a3 /12.
What recoil velocity does she acquire in response to a single shot from a stationary position, assuming that no external force keeps her in place?
A wire with a length of 3.6m and mass of 0.75kg is in a region of space with a magnetic field of 0.84T. What is the minimum current needed to leviate the wire?
Consider the following complex, which has Co(III) in an octahedralgeometry: [Co(en)(dien)Cl]2+ given: en = ethylenediammine = H2NCH2CH2NH2, which can beabbreviated N-N dien = diethylenediammine = H
What is the velocity of the first log just before the lumberjack jumps off? (Indicate the direction of the velocity by the sign of your answers.)
What are some of the practical applications of complete or incomplete combuston of hydrocarbons? and what kind of things do consumers in industries ensure to make sure tha appliance that burn hydro
A 55 kg swimmer is standing on a stationary 170 kg floating raft. The swimmer then runs off the raft horizontally with a velocity of +4.3 m/s relative to the shore. Find the recoil velocity that the
An electron moves with speed 5.50 *10^5 m/s in a uniform magnetic field of 1.2 T, pointing south. At one instant, the electron experiences an upward magnetic force of 1.70* 10^-14 N.
You had 58.45 mg NaCl. How many milliliters of H2O are needed tomake a 1.0 M solution of aqueous NaCl? How many milliliters of H2Oneeded to make a 10% solution (by weight) of aqueous NaCl?
Assume that the resistivity of tungsten varies linearly with temperature even over the large temperature range involved here, and find the temperature of the hot filament. Assume the initial tempera
An unknown salt is eitherNaCN, NaC2H3O2 , NaF,NaCl, or NaOCl. When 0.100 mol of the salt is dissolved in 1.00 Lof solutions, the pH of hte solution is 8.07. What is the identityof the salt?
A student on the bus is moving toward the back of the bus with a running speed of 2 m/s. What is the x-component of the velocity of the child relative to the sportscar?
A proton accelerates from rest in a uniform electric field of 660 N/C. At one later moment, its speed is 1.40 Mm/s (nonrelativistic because v is much less than the speed of light). (a) Find the acc
An electron and a proton are each placed at rest in a uniform electric field of magnitude 570 N/C. Calculate the speed of each particle 47.6 ns after being released.
Hydrogen and oxygenreact chemically to form water. How much water would be formed if 4.8 grams of hydrogen reacted to 38.4 grams of oxygen?