Physics Homework Answers & Questions Page 50

• What is a strait motion .. what is refrence point,origin,frame of refrence?

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• Find the length of an arc with a radius of 10.0 m swept across 100 degrees?

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• How can i calculate orbital angular momentum of an electron?

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• What is the difference between constructive and destructive interference?

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• What is the relationship between Balanced Force and Net Force?

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• What does the first law of reflection state?

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• An object is traveling around a circle with a radius of 2 meters. If in 20 seconds the object travels 5 meters, what is its angular speed? What is its linear speed?

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• What is the frequency in hertz of blue light having a wavelength of 425 nm?

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• Why is the force = mass * acceleration rather than mass * velocity? Isn't the force exerted at a given moment rather than over a period of time, which is expressed through acceleration?

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• Which of the following is a correct statement of the Second Law of Thermodynamics?

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• What is a divergent mirror?

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• What is Stefan Boltzmann law used for?

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• What is emf?

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• A motorboat accelerates uniformly from a velocity of ##6.5## ##m####/####s## to the west to a velocity of ##1.5## ##m####/####s## to the west. If its acceleration was ##2.7## ##m####/####s^2## to the east, how far did it travel during the acceleration?

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• What simple machines are in a bicycle?

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• Define the term specific heat capacity of a substance and give its SI units ?

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• How does air resistance affect the motion of an object?

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• What is impedance power?

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• What does v=dx/dt means?

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• Why do falling objects make a whistle sound?

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• Can a scalar product of two vectors be zero even when neither of them is a zero vector?

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• What is an example Kepler's Second Law practice problem?

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• The top speed of a coyote is 43 miles per hour. What is the approximate speed in kilometers per minute?

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• What is inertia?

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• A copper wire of cross-sectional area 2.0 ##mm^2## carries a current of 10 A. How many electrons pass through a given cross-section of the wire in one second ?

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• What is force?

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• What does the law of conservation of momentum mean?

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• Why does a sharp knife cut better than a blunt one?

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• Why does electric potential increase with distance?

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• Why is magnetic force a non contact force?

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• What are longitudinal waves?

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• How do you find moment of inertia of two point masses?

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• How can we calculate the work done in an elastic collision?

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• How do planets orbiting the sun and skaters conserve angular momentum?

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• A stationary object explodes into two particles of masses m1 and m2 which move in opposite directions with velocities v1 and v2. The ratio of their kinetic energy is what???

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• When is applied force equal to friction. Can u please explain me this? If you also include examples, it will be best :)

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• What are some examples of diffraction?

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• What is a projectile?

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• Why is the voltage the same for resistors in parallel?

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• How does einstein's equation change the law of conservation of energy?

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• How does uniform linear motion differ from uniform circular motion?

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• What happens to a spring's force if you stretch it more?

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• F John ran a 5-kilometer marathon, how long was that in meters?

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• What does latent heat of vaporization mean?

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• Why are concave mirrors are suitable for make up?

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• What electromagnetic waves are dangerous for humans?

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• How does friction affect the law of inertia?

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• Question related to the conservation of mechanical energy?

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• When In the absence of air resistance, why does the horizontal component of velocity for a projectile remain constant while the vertical component of free fall?

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• What is the Zeroth law of thermodynamics?

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