Calculate the minimum angular speed of the wheel for light that passed through open- ing A to return through opening C to reach the observer. Answer in units of rad/s.
A small metal bead, labeled A, has a charge of 28 nC. It is touched to metal bead B, initially neutral, so that the two beads share the 28 nC charge, but not necessarily equally. When the two beads ar
A 30nC charged particle and a 50nC charged particle are near each other. There are no other charges nearby. The electric force on the 30nC particle is 4.30 10^ 2 N. The 50nC particle is then moved ver
What is the strength of the electric field at the position indicated by the dot in the figure? What is the direction of the electric field at the position indicated by the dot in the figure? Specify t
A 5.0 10^ 2g plastic bead is charged by the addition of 1.0X10^10 excess electrons. What electric field strength will cause the bead to hang suspended in the air? What electric field direction will ca
What is the force on the 1.0nC charge in the figure? Give the magnitude. Give the direction above the horizontal in degrees.
A glass rod that has been charged to +13.0nC touches a metal sphere. Afterward, the rod's charge is +8.0nC. What kind of charged particle was transferred between the rod and the sphere (electrons or p
physics magnetic field question attached
A ski tow operates on a slope of angle 14.3 degree of length 250 m . The rope moves at a speed of 12.6 km/h and provides power for 53 riders at one time, with an average mass per rider of 68.0 kg.
A uniform solid disk with radius 12 cm has mass 0.7 kg (moment of inertia I = MR2). A constant force 12 N is applied as shown. At the instant shown, the angular velocity of the disk is 45 radians/s i
Ask a new Physics Question
Can't find what you're looking for?
Tips for Asking Questions
- Provide any and all relevant background materials. Attach any necessary files to ensure your Tutor has all the required information to answer your question as completely as possible.
- Set a compelling price. While our Tutors are eager to answer your questions, offering a compelling price speeds up the process by avoiding any unnecessary price negotiations.
1. Can you show me step by step how to solve this problem?:
- The Earth’s rate of rotation is constantly decreasing, causing the day to increase in duration. In the year 2000 the Earth takes about 0.548 s longer to complete 365 revolutions than it did in the year 1900.
- (a) What is the average angular acceleration of the Earth?
- (b) If this average acceleration remains constant, in what year will the Earths rotation come to rest?
2. I do not understand this Ideal Gas Law and Kinetic Theory question. Can you help me set it up?
- A spherical balloon is made from a material whose mass is 3.00-kg. The thickness of the material is negligible compared to the 1.5-m radius of the balloon. The balloon is filled with helium (He) at a temperature of 305-degrees K and just floats in the air, neither rising nor falling. The density of the surrounding air is 1.19-kg/m^3. Find the absolute pressure of the helium gas