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The Earth has an angular speed of 7.272·10-5 rad/s in its rotation. Find the new angular speed if an asteroid (m = 1.89·1022 kg) hits the Earth while traveling at a speed of 3.07·103 m/s (assume the asteroid is a point mass compared to the radius of the Earth) in each of the following cases:
a) The asteroid hits the Earth dead center.
b) The asteroid hits the Earth nearly tangentially in the direction of Earth's rotation.
c) The asteroid hits the Earth nearly tangentially in the direction opposite of Earth's rotation.
A person on earth notices a rocket approaching from the right at a speed of 0.81c and another rocket approaching from the left at 0.58c. What is the relative speed between the two rockets
The A string of a violin is 32cm long between fixed points with a fundamental frequency of 440Hz and a mass per unit length of 6.5×10-4 kg/m. What is the wave speed in string.
Assume the mostly infrared radiation from a heat lamp acts like a continuous wave with wavelength 1.50 µm. Find the peak magnetic field strength
The infamous chicken is dashing toward home plate with a speed of 5.80 while he decides to hit the dirt. The chicken slides for 1.1, just reaching the plate as he stops (safe, of course).
An applied force F1= 16N acting on an object with the mass m = 2 kg which is moving on the surface of a table. find the coefficient of friction between the object and the table
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.70 mm, Calculate the electric field between the plates and Calculate the capacitance
what is the ball's speed immediately after the collision?
A "diving bell" is a tube or pipe that is closed at the top and open at the bottom. It is lowered into a body of water with the open end down so that air is trapped inside, Find the absolute pressure of the air in the bell
A heat engine takes in 400J of energy from a hot reservoir and performs 35J of work in each cycle. obtain the energy expelled to the cold reservoir in each cycle
A neutron at rest decays into a proton and an electron. How much Kinetic energy (in MeV) are shared by the electron and proton? Can a proton decay into a neutron and positron?
The focal length of an objective lens is 4.60mm . The image formed by this lens is 145mm from its focal point. find the magnitude of the angular magnification of the microscope
A 17.0 kg monkey hangs from a cord suspended from the ceiling of an elevator. What was the direction of the elevator's acceleration
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