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You decide to travel by car for your holiday visits this year. You leave early in the morning to avoid congestion on the roads. This enables you to drive at a comfortable speed of 69.2 mph for 1.70 hours. However, after this time, you unexpectedly come to a stop for 35.3 minutes. Traffic starts moving again and you finish your travel at 54.8 mph for an additional 1.7 hours. How far did you travel on this trip? What was your average speed?
For a hydrogen atom, an electron is in the second excited state, What wavelength of light will ionize the electon
What is the gauge pressure of the air in the tires when its temperature rises to 27 .00C and its volume increases to 1.67 x 10-2 m3? Assume atmospheric pressure is 1.01 x 105 Pa.
A 0.50 kg ball that is tied to the end of a 1.30 m light cord is revolved in a horizontal plane with the cord making a 30° angle, with the vertical. If the cord can withstand a maximum tension of 9.5 N, what is the highest speed at which ball can ..
An oil drop (density = 0.80 grams/cm3) has a diameter of 2.30 ?m. (This is about the size of a bacterium.) (A) Find the mass of the drop, What is the value of the electric field
Two frictionless carts are pulled (horizontally to the left) by a force of F1=24N. m1=2.0kg and m2=4.0kg, find the tension in the connecting cord
The wavelength of an ocean wave
cientists are experimenting with a kind of gun that may eventually be used to fire payloads directly into orbit. In one test, this gun accelerates a 5.0kg projectile from rest to a speed of 4.0 x 103 m/s. The net force accelerating the projectile..
In soccer, a speed record was set for kicking a soccer ball at 43m/s. If the soccer player kicked the ball from ground level at an angle of 30° from the horizontal, what would be the flight time of the soccer ball? Assume that air resistance is ne..
The tension in a ligament in the human knee is approximately proportional to the extension of the ligament, What is the tension in this ligament when it is stretched by 0.67 cm
A box of mass 72.0 kg is connected to a second box with a mass of 34.0 kg. find the magnitude of the tension in the string between the two boxes
write down Newton's Second Law for the velocity of the cube.
How many revolutions will the car have gone through.
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