Even if Martian meteorites contained life, the life could not possibly have survived the journey from Mars to Earth
Indicate whether the statement is true or false
FALSE
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Two tanks of gas, one of hydrogen, H2, and one of helium, He, contain equal masses of gas. The gram-molecular mass of He is twice that of H2. Both tanks of gas are at the same temperature, 293 K. Which statement(s) below is(are) correct when we ignore vibrational motion?
A. The total internal energy of the hydrogen is the same as that of the helium. B. The total internal energy of the hydrogen is 167 times that of the helium. C. The total internal energy of the helium is 1.67 times that of the hydrogen. D. The total internal energy of the hydrogen is 3.33 times that of the helium. E. The total internal energy of the helium is 3.33 times that of the hydrogen.
If a 30 kg (66 lbm) block having a density of 2000 kg/m^3 (124.8 lbm/ft^3) is submerged in water having density of 1000 kg/m^3 (62.4 lbm/ft^3) what is the buoyant force acting on the block?
What will be an ideal response?
Starting outside the region with the magnetic field, a single square coil of wire enters, moves across, and then leaves the region with a uniform magnetic field 
perpendicular to the page so that the graph shown below represents the induced emf. The loop moves at constant velocity 
. As seen from
above, a counterclockwise emf is regarded as positive. In which direction did the loop move over the plane of the page?
?
?
A. The loop moved from bottom to top.
B. The loop moved from top to bottom.
C. The loop moved from left to right.
D. The loop moved from right to left.
E. All of these directions of motion will produce the graph of emf vs t.
A particle starts from rest at xi = 0 and moves for 10 s with an acceleration of +2.0 cm/s2 . For the next 20 s, the acceleration of the particle is -1.0 cm/s2 . What is the position of the particle at the end of this motion?
a. zero b. +3.0 m c. -1.0 m d. +2.0 m e. -3.0 m