Other Physics Answers

An electric heater works by passing a current of 100A through a coiled metal wire, making it red hot. If the resistance of the wire is 1.1 ohms, what voltage must be applied to it?

A light bulb has a resistance of 5 ohms and a maximum current of 10A.How much voltage can be applied before the bulb will break?

200 grams metal at 1000C is placed on calorimeter which contains 300 grams water at 180C. If the specific heat of metal is 140 J/kg0C, determine the final temperature of the system!

200 grams metal at 1000C is placed on calorimeter which contains 300 grams water at 180C. If the specific heat of metal is 140 J/kg0C, determine the final temperature of the system!

An RC circuit have a 9 V source and lies at a 54-seconds of time constant.

Then, find the voltage across the Capacitor after 153.6 seconds of charging.

A bullet is fired vertically upward (don't) with a muzzle velocity of 671.ft/s.

a) when does if reach max altitude?

b) what is that max altitude (above the gun)?

c) when does it return to hit the gun (or stupid sportsman)?

Compute the horizontal range, on level ground, for a projectile with initial speed 35.0m/s and initial inclination 75.0⁰ from the horizontal.

a pickup truck accelerates 3.25m/s² from rest, for 5.80 s. find it's final speed.

convert 7.1cm to inches using 1 in =2.54cm