A 500?g block traveling at 60 cm/s slides onto a 1?kg cart as shown. The block stops sliding before reaching the end of the cart
The final speed of the cart is closest to:
1.0
2.10 cm/s
3.20 cm/s
4.30 cm/s
5.40 cm/s
6.50 cm/s
7.60 cm/s
8.impossible to determine
3
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Which scientist built a radio transmitting tower at the turn of the 20th century and claimed that he was receiving interplanetary communications with it?
A) Guglielmo Marconi B) Thomas Edison C) Nikola Tesla D) Grote Reber
A 400-turn circular coil (radius = 1.0 cm) is oriented with its plane perpendicular to a uniform magnetic field which has a magnitude that varies sinusoidally with a frequency of 90 Hz. If the maximum value of the induced emf in the coil is observed to be 4.2 V, what is the maximum value of the magnitude of the varying magnetic field?
A. 59 mT B. 62 mT C. 65 mT D. 68 mT E. 31 mT
Arrange the atoms calcium, barium, chlorine, and bromine in order of increasing atomic radius
The mass of a sulfur atom is 32.0 u, and the mass of a fluorine atom is 19.0 u. What is the mass of a mole of sulfur hexafluoride (UF6)?
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