atom is 6.64 x 10-27 kg. (a) the escape speed from Earth, 1.12 x 104 m/s...
At what temperature would the average speed of helium atoms equal the following value? Note: The mass of a helium atom is 6.64 x 10-27 kg. (a) the escape speed from Venus, 1.04 x 104 m/s (b) the escape speed from the Moon, 2.37 x 103m/s
The escape speed from the Earth is 1.12×104m/s, so that a gas molecule travelling away from Earth near the outer boundary of the Earth's atmosphere would, at this speed, be able to escape from the Earth's gravitational field and be lost to the atmosphere. Part A At what temperature is the average speed of oxygen molecules equal to 1.12×10^4m/s? Part B At what temperature is the average speed of helium atoms equal to 1.12×10^4m/s?
A satellite moves in a circular orbit around Earth at a speed of 5227 m/s. (a) Determine the satellite's altitude above the surface of Earth. Incorrect: Your answer is incorrect. Your response differs from the correct answer by more than 10%. Double check your calculations. m (b) Determine the period of the satellite's orbit.
A 831 kg car stopped at an intersection is rear-ended by a 1830 kg truck moving with a speed of 14.5 m/s. If the car was in neutral and its brakes were off, so that the collision is approximately elastic, find the final speed of both vehicles after the collision. 5.44 Incorrect: Your answer is incorrect. Your response differs from the correct answer by more than 10%. Double check your calculations. 20 Incorrect: Your answer is incorrect. Your response differs...
A projectile is launched with an initial speed of 52.0 m/s at an angle of 32.0° above the horizontal. The projectile lands on a hillside 3.50 s later. Neglect air friction. (Assume that the +x-axis is to the right and the +y-axis is up along the page.) (a) What is the projectile's velocity at the highest point of its trajectory? 27.55 x magnitude Your response differs from the correct answer by more than 10%. Double check your calculations. m/s 44.09...
A ball is thrown directly downward with an initial speed of 8.45 m/s, from a height of 29.1 m. After what time interval does it strike the ground? Your response differs from the correct answer by more than 10%. Double check your calculations. S
A mechanic pushes a 2.60 times 10^3 kg car from rest to a speed of v, doing 5.460 J of work in the process. During this time, the car moves 24.0 m. Neglecting friction between car and road, find v and the horizontal force exerted on the car. the speed v m/s the horizontal force exerted on the car (Enter the magnitude.) 193 Your response differs from the correct answer by more than 10 %. Double check your calculations. N
At what temperature would the rms speed of chlorine-35 atoms equal the following speeds? (Note: The mass of a chlorine-35 atom is 5.81 ✕ 10−26 kg.) (a) the escape speed from Earth, 1.12 ✕ 104 m/s (b) the escape speed from the Moon, 2.37 ✕ 103 m/s
A comet is traveling through space with a speed of 3.80 ✕ 104 m/s when it collides with an asteroid that was at rest. The comet and the asteroid stick together during the collision process. The mass of the comet is 1.75 ✕ 1014 kg, and the mass of the asteroid is 7.05 ✕ 1020 kg. (a) What is the magnitude of the momentum of the system's center of mass before the collision? Your response differs significantly from the...
How many electrons in an atom can have each of the following quantum number or sublevel designations? (a) n = 2, 1 = 1, m = 0 (b) 5f Your response differs from the correct answer by more than 10%. Double check your calculations, (c) n = 4,1 = 1 10 Your response differs from the correct answer by more than 10%. Double check your calculations.