Aplanet orbits a star, in a year of length 4.34 x 10^7 s, in a nearly circular orbit of radius 1.42 x 10^11 m. with respect to the star, determine
(a) the angular speed of the planet,
(b) the tangential speed of the planet, and
(c) the magnitude of the planet's centripetal acceleration.

According to newton's second law, when the same force is applied to two objects of different masses, a the object with greater mass will experience a great acceleration, and the object with less mass will experience an even greater acceleration, b. the object with greater mass will experience a smaller acceleration, and the object with less mass will experience a greater acceleration, c. the object with greater mass will experience a greater acceleration, and the object with less mass will experience a smaller acceleration, d. the object with greater mass will experience a small acceleration, and the object with less mass will experience an even smaller acceleration.

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?

Two rigid transformations are used to map δhjk to δlmn. the first is a translation of vertex h to vertex l. what is the second transformation? a reflection across the line containing hk a rotation about point h a reflection across the line containing hj a rotation about point k