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In uniform circular motion, a particle undergoes motion in a circular path with a constant speed. Which of the following statement is false and why?
a- The average acceleration for one rev. is zero.b- The magnitude of the instantaneous acceleration is constant and nonezero.c- The instantaneous acceleration is zero.d- The average velocity for one rev. is zero.
An ocean liner leaves New York City and travels 20.0° north of east for 199km. How far east and how far north has it gone? In other words, what are the magnitudes of components of ship's displacement vector in the following directions.
You are driving to grocery store at 15 m/s .You is 140 m from an intersection when the traffic light turns red. Suppose that your reaction time is 0.70 s. and that your car brakes with constant acceleration. How far are you from the intersection whil..
The length of a string is 322 cm. It is held fixed at each end. The string vibrates in seven sections; such as the string has seven antinodes, and the string vibrates at 160 Hz.
Calculate the gradient of V in each region
A duck has a mass of 2.6 kg. As the duck paddles, a force of 0.11 N acts on it in a direction due east. In addition, the current of the water exerts the force of 0.12 N in a direction of 44° south of east. When these forces begin to act, the velocity..
As shown in the figure, sunlight is coming straight down (negative z-direction) on a solar panel (of length L = 1.51 m and width W = 0.930 m) on the Mars rover Spirit.
A 44.0 kg child is in a swing that is attached to ropes 1.60 m long. The acceleration of gravity is 9.81 m/s2. Find the gravitational potential energy associated with the child relative to the child's lowest position under the following conditions.
Determine the magnitude when the force on the wire
On another planet the simple pendulum consisting of a 0.154 kg mass suspended on a 1.20 m long string has a period of 3.860 seconds. What is acceleration on this planet.
Use the binomial expansion to find an approximate expression
A ferrari race car on the straight road starts from rest, accelerating at 2.00 m/s^2 until it reaches a speed of 20.0m/s. Then the car travels for 20.0 s at the constant speed until the brakes are applied, stopping the truck in a uniform manner in an..
A car is driven 125.0 km west and then 65.0 km southwest. What is the displacement of the car from the point of origin (magnitude and direction).
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