A small dense object is suspended from the rear view mirror in a car by a lightweight fiber. As the car is accelerating at 1.90 m/s2, what angle does the string make with the vertical?
11.0 degrees
Physics & Space Science
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It's 6 a.m. and the Moon is at its highest point in your sky (crossing the meridian). What is the Moon's phase?
A) new B) first quarter C) full D) third quarter
Physics & Space Science
Define an isotherm. How are they represented on the weather map?
Physics & Space Science
A bar magnet that holds a chain of nails illustrates
A) magnetic field displacement. B) magnetic induction. C) electromagnetic induction.
Physics & Space Science
Resistivity and Temperature: A platinum wire is used to determine the melting point of indium. The resistance of the platinum wire is 2.000 ? at 20°C and increases to 3.072 ? as indium just starts to melt. What is the melting point of indium? The temperature coefficient of resistivity for platinum is 3.927 × 10-3/C°.
A. 116°C B. 136°C C. 156°C D. 351°C
Physics & Space Science