A22-cm -long, zero-resistance wire is pulled outward, on zero-resistance rails, at a steady speed of 1.0 m/s in a 0.10 t magnetic field (see the figure). on the opposite side, a 1.0 ω carbon resistor completes the circuit by connecting the two rails. the mass of the resistor is 49 mg

how much does the temperature of the carbon increase if the wire is pulled for 10 s? the specific heat of carbon is 710j/kg⋅∘c.
express your answer in degrees celsius.

Two red blood cells each have a mass of 9.0 multiply. gif 10-14 kg and carry a negative charge spread uniformly over their surfaces. the repulsion arising from the excess charge prevents the cells from clumping together. one cell carries −2.50 pc of charge and the other −3.10 pc, and each cell can be modeled as a sphere 7.5 μm in diameter. (a) what speed would they need when very far away from each other to get close enough to just touch? assume that there is no viscous drag from any of the surrounding liquid. answer is: 321 m/s how do i find this (b) what is the maximum acceleration of the cells in part (a)? answer is: 1.38e+10 m/s2 how did they find this answer

5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.

Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential