Question

1. (Answer With Steps)

The density of an object is defined as:

2.

If you drove day and night without stopping for one year without exceeding the legal highway speed limit (about 70 mph), the maximum number of miles you could drive would be closest to:

3.

The velocity of a particle moving along the x axis is given for t>0 by v_x=(32.0t−2.00t³) m/s, where t is in s. What is the acceleration of the particle when (after t = 0) it achieves its maximum displacement in the positive x direction?

The density of an object is defined as: Select one: the amount of the substance that has unit volume and unit mass O the volume occupied by each unit of mass the amount of the substance that contains as many particles as 12 grams of the carbon-12 isotope the weight of each unit of volume the amount of mass for each unit of volume o If you drove day and night without stopping for one year without exceeding the legal highway speed limit (about 70 mph), the maximum number of miles you could drive would be closest to Select one: 0 32,000,000 o 8,700 o 1,000,00 500,000 O 300,000 The velocity of a particle moving along the x axis is given for t>O by v =(32.0t-2.001) m/s, where t is in s. What is the acceleration of the particle when (after t = 0) it achieves its maximum displacement in the positive x direction? Select one: o zero 0 -32.0 m/s o 128 m/s? o 32.0 m/s? O -64.0 m/s?

Answer 1

cle Volume Auswel so density = mass option (a) is correct ie the amount of mass for each wit of volume ③ Maximum milem N number of miles - 70 mph x (365*24) hrs. - 613200 miles so it option is (0) closest to is correct 500,000. So ② Vx = 32+- 2+3 = 2t (16-82). ve the vyzve AVX 80 Its displacement will tro tay be maximum when it changes its direction and its changes its direction (lie velocity) at t=4 See" a = due = 32 - 6+2 at t=4 a = 32- 6x(4) ² = - 64 m/s² a = - 64 m/s² so option (e) - 64 m/s2 is correct Auswer 3