A violinist discovers while tuning her violin that her string is flat (has a lower frequency). She should

A. tighten the string.
B. loosen the string.
C. play faster.


A. tighten the string.

Physics & Space Science

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A(n) ____________________ is the distance that light would travel in one year

Fill in the blank(s) with correct word

Physics & Space Science

As viewed by us here on Earth, where does time run slowest?

A) the surface of a white dwarf B) the surface of the Sun C) the surface of the Earth D) the top of Mount Everest on Earth E) in empty space

Physics & Space Science

A boy jumps at a speed of 20.0 m/s at an angle of 25.0° above the horizontal. What is the horizontal component of the boy's velocity?

A) 18.1 m/s B) 15.6 m/s C) 8.5 m/s D) 12.6 m/s E) 20.0 m/s

Physics & Space Science

A straight wire carries a current of 40 A in a uniform magnetic field (magnitude = 80 mT). If the force per unit length on this wire is 2.0 N/m, determine the angle between the wire and the magnetic field

a. either 39° or 141° b. either 25° or 155° c. either 70° or 110° d. either 42° or 138° e. either 65° or 115°

Physics & Space Science