Other Physics Answers

Mention two factors that can change the fixed points on a temperature scale

5.     

A car starts from rest and accelerates

uniformly over a time of 5.59 seconds for a distance of 150.00 m. Determine the

acceleration of the car.

6.     

Rocket-powered sleds are used to test

the human response to acceleration. If a rocket-powered sled is accelerated to

a speed of 360.00 m/s in 2.50 seconds, then what is the acceleration of the

rocket? What is the distance that the sled travels?

7.     

An engineer is designing the runway for

an airport. Of the planes that will use the airport, the lowest acceleration

rate is likely to be 2.50 m/s^2. The takeoff speed for this plane

will be 70.00 m/s. Assuming this minimum acceleration, what is the minimum

allowed length for the runway?

8.     

It was once recorded that a Jaguar left

skid marks that were 270.00 m in length. Assuming that the Jaguar skidded to a

stop with a constant acceleration of -3.60 m/s^2, determine the speed

of the Jaguar before it began to skid.

9.     

A speedboat increases its speed

uniformly from 20 m/s to 30 m/s in a distance of 300m. Find the time it take

the boat to travel the 300 m distance.

Find the electric potential at a point located at 0.05m of a charge of +8x10^-6C. Find the potential energy of a charge of 3x10^-9C that is located at that same point.

A plate with positive charge is 0.05 m higher than a plate with negative charge, and the electric field has an intensity of E=5x10^4N/C. Determine the work performed by the electric field E when a charge of +5x10^-6C moves from the negative plate to the positive plate.