A 50.0-kg crate is being pulled along a horizontal smooth surface. The pulling force is 10.0 N and is directed 20.0° above the horizontal. What is the magnitude of the acceleration of the crate?
A) 0.0684 m/s2
B) 0.188 m/s2
C) 0.200 m/s2
D) 0.376 m/s2
E) 0.0728 m/s2
B
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A magnetic field of 104 A/m is produced by a coil. What is the intensity of magnetization of the following materials placed into the coil?
(a) Silver (b) Vacuum (c) Air (d) Palladium (e) Nickel
A projectile is projected from the origin with a velocity of 20.0 m/s at an angle of 30.0 degrees above the horizontal. The projectile lands on a roof that is 4.00 m height. What is the time when the projectile hits the roof?
A. 1.11 s B. 1.27 s C. 1.33 s D. 1.49 s E. 1.67 s
We have conclusive evidence for inflation from the light polarization of the cosmic microwave background
Indicate whether the statement is true or false
The following conversion equivalents are given: 1.0 m = 100 cm 1.0 in = 2.54 cm 1.0 ft = 12 in If a bin has a volume of 1.5 m3, the volume of the bin, in ft3, is closest to
A) 35 ft3 B) 41 ft3 C) 47 ft3 D) 53 ft3 E) 59 ft3