A boat moves at 10.0 m/s relative to the water. If the boat is in a river where the current is 2.0 m/s, how long does it take the boat to make a complete round trip of 1.00 km upstream followed by a 1.00 km trip downstream?
208 s
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Dark energy is the name of the
a. force that lead to the inflationary period of the Universe. b. five-dimensional space of the Universe. c. force suspected to cause the current acceleration in the rate of expansion of the Universe. d. one of the particles of dark matter related to WIMPs. e. the force that holds the proton together.
Magnetic Moment: A flat coil containing 25 identical loops carries 6.4 A of current. When it is placed in a uniform magnetic field of 0.22 T that is oriented parallel to the plane of the coil, the magnetic torque on it is 3.7 N ? m.(a) What is the magnetic moment of the coil?(b) What is the area of each loop?
What will be an ideal response?
Outline the process of star formation, including all relevant factors that influence the outcome
What will be an ideal response?
What is the intensity level of a sound with intensity 10-3 W/m2?
A) 96 dB B) 30 dB C) 79 dB D) 90 dB E) 60 dB