What do the radio pulses within the anticoded message sent in 1974 represent?
a. all the letters in the alphabet
b. dots and dashes, like Morse code
c. binary numbers, ones and zeroes
d. Music, notes and measures
e. the numbers one through ten
c
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A mass src="https://sciemce.com/media/4/f08bd0705123381334.png" class="w-image" />?
is connected by a light string that passes over a pulley of mass M to a mass 
as shown in the figure. Both masses move vertically and there is no slippage between the string and the pulley. The pulley has a radius of 30.0 cm and a moment of inertia of 
If 
is 4.00 kg, 
is 3.00 kg and M is 6.00 kg, then what is the tension in the string that is attached to
A. 36.2 N
B. 44.6 N
C. 58.2 N
D. 60.6 N
E. 74.5 N
Consider an open pipe of length L. What are the wavelengths of the three lowest tones produced by this pipe?
A) 4L, 2L, L B) 2L, L, L/2 C) 2L, L, 2L/3 D) 4L, 4L/3, 4L/5
The neutral pion decays by 
The rest mass of the neutral pion is 135 MeV/c2. What is the energy of each of the photons if the pion is at rest when it decays?
A. 270 MeV B. 135 MeV C. 67.5 MeV D. 1.02 MeV E. This decay cannot happen.
Requires 6.0 J of work is needed to push a 2.0-kg object from point A to point B of the frictionless ramp as shown in the figure. What is the length s of the ramp from A to B?
What will be an ideal response?