How much friction force be required for a car
A 1800 kg car rounds a curve of radius 70 m banked at an angle of 12°. If the car is traveling at 86 km/h, will a friction force be required?
If so, how much force?
In what direction?
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A baseball is seen to pass upward by a window 20 above the street with a vertical speed of 10 .If the ball was thrown from the street, what was its initial speed?
What is a describing words that ends with 'ly' to describe grendel from beowolf?
Which of the following is true about water droplets in clouds?
A plane, diving with constant speed at an angle of 50.0° with the vertical, releases a projectile at an altitude of 830 m. How far did the projectile travel horizontally during its flight?
If a 50 kg cannon ball is shot horizontally from a cannon at a speed of 80 m/s, what is its kinectic energy in joules?
A 20 kg loudspeaker is suspended 2.2 m below the ceiling by two 3.0-m-long cables that angle outward at equal angles. What is the tension in the cables?
How are rocks and soil formed? How are rocks and soil formed?
Explain why the wind direction in the lowest 1 km of the atmosphere backs with increasing height on that day. (HINT: Consider the force balances at the surface and at 1 km)
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