You can feel a force of air drag on your hand if you stretch your arm out of the open window of a speeding car. Note: Do not endanger yourself. What is the order of magnitude of this force? In your solution, state the quantities you measure or estimate and their values.

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Q: A 16-year-old employee working for Southern Virginia College's (SVC) bookstore during the summer…

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Q: A 70 kg bicyclist is coasting down a long hill with a 3.5° slope. He’s moving quite rapidly, so air…

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Q: Determine the acceleration experienced by the crate in m/s2.

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Q: A 0.55kg block is being pulled by a 2.5 N force East across a horizontal frictionless surface. What…

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Q: Which of the following statements is incorrect? O The frictional force is always opposite the…

A: We have to know the basic theory here.

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Q: A block is being pulled up an inclined plane by a force with magnitude F=45.0 N as shown In the…

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Q: Which of the following best describes the directions of friction and normal force?

A: The direction of friction and normal force.

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Q: If the acceleration of a system is zero, are no external forces acting on it? What about internal…

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Q: Stokes' law describes sedimentation of particles in liquids and can be used to measure viscosity.…

A: Given,density, ρ = 7.8×103 kgm3diameter, d = 2.6 mmtime taken, t = 10 sdistance, 0.70 m

Q: Suppose a car approaches a hill and has an initial speed of 120 km/h at the bottom of the hill. The…

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Q: A spherical object with a mass of 75 Kg object and radius of 0.5 m is dropped from a plane flying in…

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Q: After a long day of playing and catching bugs outside, a mama cat drags her basket of sleepy kittens…

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Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”