What actions should you take to keep your computer functioning well? Check all that apply. Back up your work and files onto an external hard drive.
Remove unwanted files from the computer.
Use old virus scanning software to check for viruses.
Keep Internet browsing history logged in the computer.
Scan for viruses regularly.
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The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?

If the wheels lock when braking suddenly the vehicle: a: loses traction b: lose steering wheel ability c: gain speed slightly d: gain steering ability

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion