The seal is sliding, and it's wight is 2450N. the coefficient of kinetic friction between it and the snow is 0.14. the magnitude of kinetic friction between it and the ice is 1)2450.14N
2) 434N
3) 343N
4)343Kg

The heater element of a 120 v toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. the resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 ω·m. the toaster is operated at a voltage of 120 v. (a) what is the power drawn by the toaster? (b) if the cost of electricity is 12 ¢ per kilowatt-hour, and it takes 2 minutes to toast bread, how much does it cost for toasted bread? (c) when the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to it’s resistivity when at operating temperature? explain.

How much energy will be transferred to your eardrum while listening to this sound for 1.0 min?

2. circled insects have mutations, or changes to their dna. how many of the offspring insects in this generation have mutations?