The atoms in a molecule are joined together by chemical
A) bonds
B) linkages
C) attachments
D) ligatures
A
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Two single charged ions moving perpendicularly to a uniform magnetic field (B = 0.40 T) with speeds of 5 000 km/s follow circular paths that differ in diameter by 5.0 cm. What is the difference in the mass of these two ions?
a. 2.6 × 10^-28 kg b. 6.4 × 10^-28 kg c. 3.2 × 10^-28 kg d. 5.1 × 10^-28 kg e. 1.1 × 10^-28 kg
What observational properties of pulsars allowed astronomers to discover them as a new type of object?
What will be an ideal response?
A force of 15 N toward the WEST is applied to a 4.0 kg box. Another force of 42 N toward the EAST is also applied to the 4.0 kg box. The net force on the 4.0 kg box is
A. 57 N toward the WEST. B. 27 N toward the EAST. C. 36 N toward the WEST. D. 36 N toward the EAST. E. 17 N toward the WEST.
Imagine another solar system, with a star of the same mass as the Sun. Suppose a planet with a mass twice that of Earth (2MEarth) orbits at a distance of 1 AU from the star. What is the orbital period of this planet?
A) 2 years B) 1 year C) 6 months D) It cannot be determined from the information given.