Recent content by varyvod001

Oh, okay...Makes sense now! Thank you very very very much! :D

I understand why the particular equation works in coming up with power. But I don't understand why using the resistance and voltage of the heater worked in calculating the power of the transformer. :) Edit: So I calculated the output...And it works because the power input and output have to be...

Homework Statement An outdoor heater has a resistance of 50 ohms and operates at 275 V. A transformer connected to a 120-V source supplies electricity to the heater. What is the power used by the transformer? Homework Equations P = V^2/R The Attempt at a Solution I plugged in the...

Physics Kinematics Question! :) (Check my work?) Homework Statement A ball is thrown vertically up from a window that is 3.6 meters above the ground. The ball's initial velocity is 2.8 m/s up. What is the ball's velocity when it hits the ground? How long after the first ball should a second...

Equation of Continuity--Three Fire Hoses and Pipes Homework Statement Three fire hoses are connected to a fire hydrant. Each has a radius of 0.020 m. Water enters the hydrant through an underground pipe of radius 0.080 m. In the pipe the water has a speed of 3.0 m/s. How many kilograms of...