<span>The force of gravity does work on a satellite when it is in orbit </span>
Give the mathematical expression for coulomb's force if q1, q2 are the magnitude of charges and r is the distance between them.
F=K q1q2/r2
Answer:
B
Explanation:
In this calorimetry problem, the heat released by the reaction is equal to the heat absorbed by the solution (assumed to have the same specific heat capacity as water, 4.19 Jg⁻¹°C⁻¹).
The formula Q = mcΔt will be used to calculate the heat energy, where m is the mass, c is the specific heat capacity, and Δt is the change in temperature from final to initial.
The volume of solution is (50.0 + 50.0)mL = 100.0mL = 100.0g, since water has a density of 1.00g/mL.
The heat absorbed by the solution is then calculated.
Q = mcΔt = (100.0 g)(4.19 Jg⁻¹°C⁻¹)(28.2°C - 25.0°C) = 1340 J
The closest answer is B) 1300 J. This answer is obtained by including only two significant figures in the answer.
Answer:
Which of the following is the best thermal conductor?
well my friend the answer is DUN DUN DUN....cooper
~batmans wife dun dun dun...
The answer is "positive" because a vector can be represented by an arrow. An arrow or "vector" can be denoted by drawing the size of the arrow in proportion to the magnitude of the vector. The positive and negative are designated for direction...
Good luck -Abi :)
