Answer:
.
Explanation:
By Newton's Second Law, the acceleration of an object is proportional to the net force on it. In particular, if the mass of the object is , then
.
Rewrite this equation to obtain:
.
In this case, the assumption is that the force is the only force that is acting on the object. Hence, the net force on the object would also be
Make sure that all values are in their standard units. Forces should be in Newtons (same as , and the acceleration of the object should be in meters-per-second-squared (). Apply the equation to find the mass of the object.
.
Q = mc<span>∆t, where:
q = energy flow
m = mass, 120 000 g
c = specific heat capacity, 4.81 J/gC
</span><span>∆t = change in temperature, ~75 (100 - 25, which is room temperature)
Substituting in the values, we get:
q = 120000 x 4.81 x 75 = 43290000 Joules = 43.29 MJ
Hope I helped!! xx
</span>
Answer:
The Awnser is C
Explanation:
Placing test tubes in an ice bath for 15 minutes
In this problem, we are asked to prove that OCl2 is polar. The VSEPR model of OCl2 is bent. Cl has an electornegativity of 3.16 while O has an electronegativity of 3.44. In this case, we add the two individual dipole moments because they are vectors. Since the sum is equal to greater than 0.5, the molecule should have to be polar.