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The magnitude of F is 384 newtons and its points at 344 degrees measured counterclockwise from the positive x-axis. What is the x component in newtons of F?
if the aircrafts initial speed when rolled onto the runway was 10m/s and it accelerates at 20 seconds before it leaves the ground what is the magnitude of the aircrafts average acceleraion during ta
A cannonball is shot (from ground level) with an initial horizontal velocity of 36.0 m/s and an initial vertical velocity of 21.0 m/s. What is the speed of the cannonball 2.7 seconds after it was sh
What is the change in electric potential energy of a charge q = 9.3 oC if it is moved from (x, y) = (20 cm, 45 cm) to (5 cm, 30 cm)?
It is 8 {\rm ft} long and has a diameter of 4 \rm in. Determine the maximum shear stress in the shaft caused by torsion.
Estimate the magnitude of the electric field due to the proton in a hydrogen atom at a distance of 5.29 * 10^-11 m, the expected position of the electron in the atom.
Let C= (3.10m, 15 degrees above the x-axis) and D= (23.3m, 44 degrees to the right of the negative y-axis). Find the magnitude of C and D. Find the x-components and the y-components of C and D. Ple
Find the charge separation distance in an electric field of 7.87 × 105 N/C. What is the magnitude of the induced electric dipole moment then?
The angle between the vertical and the paths of the drops appears to be 45°. If the train were stopped, at what angle and with what velocity would the drops be observed to fall?
The spherical shell carries charge with a uniform density of -2.35 µC/m3. A proton moves in a circular orbit just outside the spherical shell. Calculate the speed of the proton.
A spherical shell with an inner radius of 10 cm and outer radius of 12 cm contains a net charge +10uc. At the center of the shell is located a point charge with a charge of +2uc. What is the strengt
Two point charges are separated by a distance of 1.5 c.m., and have charges of +2.0 Micro C and +4.0 Micro C, respectively. A proton is placed in the middle between the two charges. What is the magn
A plate capacitor has a spacing between its plates of 5mm and a potential difference of 3.00e3 Volts across its plate. How fast is the electrom traveling when it reaches the positive plate. Ignore
What happens to the solutions of the time-independent Schrodinger equation if the potential energy V (x) is changed by an additive constant C everywhere? What happens to the energies?
Find the dimensions of the building to minimize the cost of construction of the walls and the roof assuming that the glass wall costs twice as much as that of the brick wall.
An electron moves on a path parallel to the direction of a uniform electric field of strength 5 N/C. How much work is expended on moving the electron 15 c.m. in the same direction as the electric f
After a reaction time 0.800 s the policeman begins to pursue the speeder with an acceleration of 4.00 m/s^2. Including the reaction time, how long does it take for the police car to catch up with th
A point charge has a charge of -7.00 micro C. Estimate the strength and direction of the electric field at a distance of 8.00 c.m. away from the point charge? Please show how you derived it.
Three point charges lie along a straight line as shown in the figure below, where q1 = 5.76 µC, q2 = 1.44 µC, and q3 = -2.2 µC. The separation distances are d1 = 3.00 cm and d2 =
What is the magnitude of the acceleration while the boulder is moving?
What is the person's body weight if the magnitude of the force exerted by the handle on each of the person's hands is 264 N ? Hint: the upper body represents 74% of the weight of the person.
One end is insulated and the other exchanges heat by convection. Write the heat equation and boundary conditions for steady state two-dimensional conduction.
If a 2kg. block is dropped from an at-rest position .6m above the top of the springs, determine their deformation when the block momentarily stops.
Find the frequency ration r=w/wn at which the amplitude of a single degree of freedom damped system attains the maximum value. Also find the value of the maximum amplitude.
Calculate the min required initial velocity (in miles per hour) for a ball hit three feet above home plate to just clear the centerfield fence when it is hit at angles of 15, 25, 35, 45, and 55 degr