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The mean value of atmospheric pressure is 101 kPa. Calculate the force due to the atmosphere on the panes of a window with dimensions 1.5 m x 0.8 m.
A point charge Q = 4.20×10-6 C is at the center of a conducting spherical shell of radius R = 18.40 cm. The total charge of the shell is -4.20×10-6 C. What is the field just outside the shell
two blocks of mass m1 and m2 approach each other on a horizontal table with the same constant speed, Vo, as measured by a laboratory observer. Determine the ratio of the two masses m1/m2
The magnitude of a single force action on a particle of a mass m is given by F = bx2 where b is a constant. The particle starts from rest. After it travels a distance L, estimate what is its kinetic energy and speed
1. A 7.80-g bullet moving at 575 m/s strikes the hand of a superhero, causing the hand to move 5.50 cm in the direction of the bullet's velocity before stopping. (a) Use work and energy considerations to find the average force that stops the bulle..
An athlete executing a long jump leaves the ground at a 20° angle and travels 6.30 m. how much longer would the jump be
a parallel-plate capacitor has 1.82 cm2 plates that are separated by 4.40 mm with air between them. if a 12.0 v battery
What is the launch speed of a projectile that rises vertically above the Earth to an altitude equal to four times the Earth's radius before coming to rest momentarily
Electrons are used in a single-slit diffraction experiment. Such an experiment works well if the slit has a width of 10 times the wavelength. what is the electron energy
A lamp which is 12.0 cm tall is 286.8 cm in front of a converging lens which has a focal length of 77.5 cm. What is the image distance for this lamp
A steel tank is completely filled with 2.70 m^3 of ethanol when both the tank and the ethanol are at a temperature of 31.0 degree C. When the tank and its contents have cooled to 17.5 degree C, what additional volume of ethanol can be put into the t..
An automobile travels on a straight road for 40.0 km [E] at 30.0 (km/h). It then continues in the same direction for another 40.0 km [E] at 60 (km/h). Estimate the average speed, distance, displacement, & average velocity for the trip.
The circular plates of a parallel plate capacitor have a radius of 27 centimeter. Find the time rate of change of the electric field between the plates
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