If the mass of the book is 50 sliding with acceleration 1.2 m/s ^ 2 then the friction force is 364N

185N

173N

73N

Answer and I will give you brainiliest
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When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?

Aturntable that spins at a constant 74.0 rpm takes 3.10 s to reach this angular speed after it is turned on. find its angular acceleration (in rad/s2), assuming it to be constant, and the number of degrees it turns through while speeding up.