Recent content by Haniszmi

wow thx

1/2 microC's?

Homework Statement 1. A uniform electric field is directed towards the east with a magnitude of 10 N/C. A proton, moving with a speed of 10^5 m /s, enters the field traveling parallel to it. The proton covers a distance of 4 cm while in the field. Find the proton’s final velocity as it leaves...

Homework Statement A plate carries a charge of -3microC, while a rod carries a charge of +2microC. How many electrons must be transferred from the plate to the rod, so that both objects have the same charge? Homework Equations N= q/e The Attempt at a Solution I tried finding the...

Homework Statement 6. A car of mass 1750 kg rounds a circular turn of radius of 21 m. The road is flat and the coefficient of kinetic friction between the tires and the road is 0.3, while the coefficient of static friction is 0.76. How fast can the car go without skidding? Homework...

Awesome thanks guys!

Homework Statement A person is flying an 82 g model airplane in a horizontal circular path on the end of a string 11m long. The string is also horizontal (ideal situation). It exerts a force of 3.22N on the hand of the person holding it. What is the speed of the plane...

Homework Statement In a mall, a shopper rides up an escalator between floors. At the top of the escalator, the shopper turns right and walks 9 meters to a store. The magnitude of the shopper's displacement from the bottom of the escalator is 16m. The vertical distance between the floors is 6m...

Ok I have a feeling that the answer is 9.8m because once the ball is thrown in the air it automatically begins to decelerates because of gravity. Since it takes an object that was dropped to travel 9.8m in one second, an object that was thrown up and airborne for only one second must of been...

Ok I see where I had made my mistake, but now I am confused with how to find the distance traveled. How do you find the distance traveled if there are 2 different velocities?

Ok... I understand what you told me and using what you told me my first gut reaction is to say that the answer is 0. Since the ball is not moving anywhere initially. Is this valid?

Homework Statement A particle that is moving along a straight line decelerates uniformly from 0.4 m/s to 0.2 m/s in 5 seconds and then has a constant acceleration of 0.2 m/s^2 during the next 4 seconds. What is the average speed over the whole time interval? Homework Equations vavg =...

Homework Statement A tennis ball is thrown from ground level with an initial velocity directed 30° above the horizontal. If it takes the ball 1 second to reach the top of its trajectory, what is the magnitude of the initial velocity? Homework Equations The Attempt at a Solution I...