Recent content by billybobay

Homework Statement Explain why skin burns caused by 100 degree C steam are more severe than those caused by 100 degree C water. Homework Equations 100 degree C water skin 20 degrees C 4.2 J/g so 200 J 100 degree C steam 2254 J into your arm vaporize water in cells of your arm...

I used one of many equations which were given in my book. And changed my numbers from theirs to mine. They were using the equation to find the velocity so I just filled my velocity given to me in my question in and found for the change of x which in their equation they filled in. You would agree...

Homework Statement A car drives off a 50 m high cliff with a horizontal velocity of 20 m/s. How far from the base of the cliff will the car strike the ground? Assume there is no air resistance and the ground is level at the base of the cliff. 20 m 50 m 64 m 100 m...

Homework Statement If you toss your little cousin straight up into the air at 5 m/s, how high above your hands will he/she go? 0.5 m 1.3 m 2.0 m 70 m Homework Equations d = (0-5^2) / 2 (-9.8) d = 1.3 m The Attempt at a Solution My cousin will fly 1.3...

Homework Statement When Bob applies the brakes to his car, it slows uniformly from 20.0 m/s to 0.0 m/s in 4.0 s. How many meters before a stop sign must he apply his brakes in order to stop at the sign? 80 m 60 m 40 m 20 m Homework Equations d=(20+0)/2(4)...

so 5 blocks E of N would be correct then?

Homework Statement What is your final displacement if you walk 3 blocks east, then 4 blocks north? 7 blocks, northeast 5 blocks, 53degrees N of E 5 blocks, 53degrees E of N 1 block, north Homework Equations square root of 3^2 + 4^2 = square root of 25 d= 5...

I'm not asking for you to do my homework but can you help me on it?! I have no idea how to even attempt it. Any help would be greatly appreciated! The International Space Station (ISS) just celebrated its 10th anniversary of human habitation. During that time it has been orbiting the Earth...

1. Do my answers seem correct? I had a hard time interrupting the graph at first. The graph for the question is attached at the bottom. I would appreciate any direction or help ifthings are felt to be wrong! Homework Statement The graph above shows the velocity of a toy car being pushed by...

1. I think the most place I'm questioning my answer is the force part of it. A golf club contacts a golf ball for 0.15 s at an angle to the horizontal and the ball subsequently strikes the ground a distance down the fairway. You choose an initial speed (between 25 m/s and 35 m/s) and the...

Homework Statement finding the lowest non zero acceleration in a lab Homework Equations The Attempt at a Solution the question has asked to find the lowest non zero acceleration, I can't find what nonzero acceleration exactly is. does that mean the acceleration rate is any...

Homework Statement I have these questions from a study guide in physics. I don't understand how to answer any of these and am completely lost in physics. I'm looking for any help I could get in explaining how to do these problems. I'm new to this site and not sure if this is posted right or...