Consider a situation where you exert a force F on a crate of mass m, moving it at a speed v a distance d across a floor in a time interval t.The kinetic energy of the crate is 1/2 mv2
a. True
b. False
Indicate whether the statement is true or false
True
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Determine the PBR for the oxidation of nickel to form NiO that has a density of 7.45 g/cm3 .
What will be an ideal response?
How does an accretion disk around a neutron star differ from an accretion disk around a white dwarf?
A) The accretion disk around a neutron star is much hotter and emits higher-energy radiation. B) The accretion disk around a neutron star is made mostly of helium, while the accretion disk around a white dwarf is made mostly of hydrogen. C) The accretion disk around a neutron star is more likely to give birth to planets. D) The accretion disk around a neutron star always contains much more mass.
The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by 
in SI units. What is the maximum E field?
A. 1000 V/m B. 180 V/m C. 81 V/m D. 360 V/m E. 0.40 V/m
The three most common cementing agents in a sedimentary rock are
A) silica, calcite, and hematite. B) calcite, silica, and iron oxide. C) silica, carbonate, and feldspar. D) silica, iron oxide, and sandstone.