Recent content by njuice8

Hi, I am calculating energy (if there were to be no energy lost due to friction, etc) for this roller coaster. I understand that at point A there is only GPE and that at point E there is only KE. I was wondering if there would be both KE and GPE at point B and C. Would there be both KE and...

The thing is that the smaller and lighter it is, we get more points. and the whole thing can't have a bigger width than 4x4inch which is pretty small...

We can use as many as we want

Haha I wish But it's just a project for physics class :/

Hi, sorry I didn't check yet But i'll check it right away! Thanks for the tip :)

Hi, I have to make the classic egg drop contraption but we're only allowed to use plastic drinking straws, index cards, and hot glue. the width also has to be smaller than 4x4 inches but it can be as tall as we want it to be (but preferably small) and it has to have a door of some sort...

A mass m1 = 6.20 kg is moving North with a velocity of v1 = 13.5 m/s when it collides perpendicularly with another mass m2 = 4.40 kg moving East with a velocity of v2 = 8.80 m/s. Mass m1 runs into mass m2 in an inelastic collision and both masses stick together and move off after the collision...

A ball, which has a mass of m1 = 2.50 kg., is moving with a velocity of 8.00 m/s at an angle of 25.0˚ South of West. It collides with a second ball, which has a mass of m1 = 1.20 kg., which is moving with a velocity of 4.75 m/s at an angle of 61.0˚ North of West. They stick together and move as...

Vehicle A (1400-kg) traveling 60˚ north of east collides with Vehicle B (1000-kg) traveling North. After the collision Vehicle A is moving at 12.13 m/s at 35˚ from its original path. Vehicle B is moving at 10.85 m/s at 10˚ from its original path. Find the initial velocities of both vehicles...

Hi, thanks for helping me! It made sense :) I was looking at my oven, and it said 13.5kW@120V and it also said 10kW@120V. How would I calculate this? Thanks!

Hi, for a physics project we have to find the power usage of household appliances. My charger says "60W inputAC 100-240V 1.5A output 16.5-3.65V" Would the watts just be 60W? Or would I have to calculate the amount by using P=AMPsx120volts (provided by my teacher)? My other charger says...

Help with Vector problem?? A river flows due east at 1.50m/s. A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 10.0m/s 35 degrees northwest relative to the water. a) What is the velocity of the boat relative to the shore? b) If the river is...

Yes, I need two methods for each question. I would be grateful if you would be able to help!

Hi, sorry I should have listed my ideas We have learned kinematics, Newton's laws, work, centripetal force, friction in class (These are the methods we are allowed to use) My ideas so far (i'm not sure if they will work though): -if an object is launched vertically, what was the initial...

Hi, I'm new on this forum and don't really know how to use it, but I really need help I need to figure our 2 different experiment methods to answer these questions: -if an object is launched vertically, what was the initial velocity? -if an object is launched horizontally, what was the...