If the velocity of an object is non-zero, can the acceleration of the object be zero?

A. Yes
B. No


A. Yes, for example when the velocity is constant.

Physics & Space Science

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When a body moves in circular motion at constant speed the velocity and acceleration point in opposite directions

a. True b. False Indicate whether the statement is true or false

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Fusion of hydrogen nuclei is the origin of solar energy

a. True b. False Indicate whether the statement is true or false

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Calculate the entropy change of the lead that occurs when 2.00 kg of lead at 40.0°C are placed in a very large quantity of water at 10.0°C. The specific heat of lead is 0.031 cal/(g?K)

A) -12.6 J/K B) 86.0 J/K C) -26.1 J/K D) -86.0 J/K E) -6.24 J/K

Physics & Space Science

Equation of Traveling Waves: The vertical displacement y(x,t) of a horizontal string aligned along the x-axis is given by the equation y(x,t) = (6.00 mm) cos[(3.25 m-1)x - (7.22 s-1)t]. What are the (a) speed and (b) amplitude of this wave?

What will be an ideal response?

Physics & Space Science