The period of an oscillating weight on a spring in an inertial frame of reference is 2.5 s. What would be its speed if it were to move by an observer who measures its period as 3.4 s? (c = 3.00 × 10^8 m/s)
a. 1.5 × l08 m/s
b. 2.0 × 10^8 m/s
c. 2.8 × l08 m/s
d. 6.8 × 10^7 m/s
e. 1.3 × 10^8 m/s
b
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a. True b. False Indicate whether the statement is true or false
In a false color image,
A. colors can represent photon energies or the intensity of electromagnetic radiation. B. only one color is used. C. stars appear black and the background appears white. D. color information from optical telescopes is combined with information from a non-visible wavelength telescope to make the image.
A rectangular loop of wire carrying a 4.0-A current and with certain dimensions is placed in a magnetic field of 0.60 T. The magnitude of the torque acting on this wire when it makes a 60° angle with the field is 1.1 Nm
What is the area of this wire? A) 0.20 m2 B) 0.40 m2 C) 0.26 m2 D) 0.80 m2 E) 0.53 m2
Ocean tides of low amplitude that occur at first and third quarter moons are called ____________________
Fill in the blank(s) with correct word