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Write the equation representing Source B's wave if Source B is exactly 1/2 a wavelength ahead of Source A. Draw a quick plot of the two waves.
How many sprints from rest to a speed of 5.7 m/s would a 56-kg woman have to complete to burn off 5.0 X 10^2 Calories? (Assume 100% efficiency in converting food energy to mechanical energy. Ignore
A beam of accelerated protons from the Large Hadron Collider can be used to "spray paint" an insulator with protons. Calculate the number of protons needed to paint the cover of your textbook with a
At the top of the loop, what is the magnitude of the force exerted on a 55kg rider by the seatbelt?
A U-shaped tube, open to the air on both ends, contains mercury. Water is poured into the left arm until the water column is 16.9 deep. How far upward from its initial position does the mercury in
A 1.0-cm-diameter pipe widens to 2.0cm , then narrows to 0.5cm. Liquid flows through the first segment at a speed of 4.0m/s aA) What is the speed in the second segment?
Determine (a) the density of the liquid mixture, (b) the percentage of oil in the mixture by mass. Assume liquids to be incompressible.
As a result the capacitance becomes 17.2 uF. Calculate the dielectric constant of the inserted material.
Calculate the charge on this capacitor when the electrical energy stored in the capacitor is 8.29 J.
If a dielectric material with kappa=3.80 is inserted so that it fills the volume between the plates (with the capacitor still connected to the battery), how much additional charge will flow from the
A dipole moment has the value p = 4.30 x 10-5 C m j-hat. What is the value of the electric potential energy of the dipole at point in an electric field E with a magnitude of 500 V/m oriented at 30.0
An empty hollow metal sphere has a potential of +160 V with respect to ground (defined to be at V = 0) and has a charge of 8.0 10-9 C. Find the electric potential at the center of the sphere.
A metal sphere of radius 19 cm has a net charge of 6.0 10-8 C. If V = 0 at infinity, what is the electric potential at the sphere's surface?
If you have two different cycles and the only difference between them is that cycle 1 has a less amount of positive work and cycle 2 has a greater amount of positive work, which cycle is more effici
A truck travels 3.15 km north and then makes a 90° left turn and drives another 4.00 km. The whole trip takes 4.50 min. What is the magnitude of the average velocity for this trip?
A block with mass m = 3 kg is sitting on the ground and not moving. The acceleration due to gravity is g = 9.81 m/s2. Please answer the following questions. Part (a) Write an expression for the magn
Four vectors all have the same magnitude. Vector 1 is at 30 degrees, Vector 2 is at 135 degrees, vector 3 is at 240 degrees, and Vector 4 is at 315 degrees. Which vector has the greatest magnitude x
A high-performance dragster with a mass of m = 1172 kg can accelerate at a rate of a = 31.5 m/s2 Part (a) Write an expression for the magnitude of the force, F, that propels the dragster forward in
Given Newton's First Law of Motion, what do we reasonably expect an object to do given the following scenarios?
He notes that it takes the wave 0.900 s to reach the opposite tower, 20.0 m away. If a 1 meter length of the rope has a mass of 0.265 kg, find the tension in the tightrope.
An electron is released from rest at the surface of the negatively charged plate and strikes the surface of the opposite plate, 3.40 distant from the first, in a time interval of 2.40×10-8 Fin
If the magnitude of the electric field is 6.82 N/C, how much work is done by the electric field as the particle is made to move a distance of d = 0.956 m straight up?
What is the difference between potential energies for dipole orientations parallel to and antiparallel to Evec?
An alpha particle (the nucleus of a helium atom) has a mass of 6.64 multiplied by 10-27 kg and a charge of +2e. What are the magnitude and direction of the electric field that will balance the grav