A 5.00-kg box slides 4.00 m across the floor before coming to rest. What is the coefficient of kinetic friction between the floor and the box if the box had an initial speed of 3.00 m/s?

A) 1.13
B) 0.587
C) 0.115
D) 0.229
E) 0.267


C

Physics & Space Science

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The figure shows two forces acting at right angles on an object. They have magnitudes = 6.3 N and = 2.1 N. What third force will cause the object to be in equilibrium (acceleration equals zero)?

A) 6.6 N at 162° counterclockwise from 1 B) 6.6 N at 108° counterclockwise from 1 C) 4.2 N at 162° counterclockwise from 1 D) 4.2 N at 108° counterclockwise from 1

Physics & Space Science

Which of the following played the most important role in the ring's formation?

A) Saturn's differential rotation B) Saturn's Roche limit C) Saturn's distance from the Sun D) debris from volcanoes on Mimas E) tidal resonance with Titan

Physics & Space Science

How much energy is stored in the 50-?F capacitor when Va ? Vb = 22 V?

?

?

a.
0.78 mJ

b.
0.58 mJ

c.
0.68 mJ

d.
0.48 mJ

e.
0.22 mJ

Physics & Space Science

A magnifying glass with focal length 15 centimeters is placed 12 centimeters above a stamp. (a) Where is the image? (b) What is the magnification? (c) Is the image produced a real or a virtual image?

Physics & Space Science