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Earth can produce the downward electric field of 150 N/C around its surface. Assume this electric field is uniform through the atmosphere.
a) Estimate how long an stationary electron produced from an ionization process would take to escape from the atmosphere of thickness of 10 km.
b) Estimate the speed of the electron when it escape from the atmosphere.
What is the resulting compressional force on Earth. Two loudspeakers, A and B, are driven by the same amplifier and emit sinusoidal waves in phase.
5.0kg of water at 32?C is mixed with 5.0kg of water at 52?C in a well-insulated container. Estimate the net change in entropy of the system
A rear-wheel-drive car supports 44% of its weight on its two drive wheels and has a coefficient of static friction of 0.80. What is the vehicle's maximum acceleration
Where is the image? Enter your answer as two numbers separated with a comma. Is the image real or virtual?
Points A and B have electric potentials of 231 Volt and 129 Volt correspondingly. Determine what is the electric potential at C
a piece of cheese with a mass of 1.22kg is placed on a vertical spring of negligible mass and a force constant k 1500nm
Points A and B have electric potentials of 243 V and 129 V, respectively. When an electron released from rest at point A arrives at point C its kinetic energy is KA. When the electron is released from rest at point B, however, its kinetic energy when..
What is the spring constant of the bow? How much work does Sue do in pulling the arrow back? What is the speed of the arrow as it leaves the bow?
A ski starts from rest and slides down a 21degree incline 75m long. what is the ski's speed at the base of the incline
By observation, fill in the values, with distance in centimeters, period T in seconds, angular frequency ω in radians per second, and phase in radians.
Two vehicles approach an intercetion at right angles and collide. If vehicle #2 has a mass of 600kg, vehicle #1 has a mass of 300kg, and they are both travelling at 13 m/s before the collision, what is the magnitude and direction of the final velo..
An electron gun inside a computer monitor sends an electron toward the screen at a speed of 1.20 × 108 m/s. what is the magnitude of its relativistic momentum
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