how does the magnitude of electrical force between a pair of charged particles change when the particles are moved twice as far apart?
the blade has a diameter of 19 in. if the outermost tip of the blade hits a rock while turning as in part a, how fast could the rock be hurled from the mower?
two resistors are connected in series with 9.0 volt battery. resistor a has twice the resistance of resistor b. what is the voltage drop across each resistors?
adam made a paper airplane and threw it across his room. it glided through the air. then, it fell to the ground. what force caused the paper airplane to fall?
what is the total distance traveled (in m) by a point 9.00 cm from the axis of rotation of the ultracentrifuge?
what is the initial drag force while the bird is still moving at its impact speed? give your answer as a multiple of the bird's weight.
What type of heat transfer occurs when molecules collide and create movement when objects are touching each other?.
The caloris basin on mercury covers a large region of the planet, but few smaller craters have formed on top of it. From this we conclude that?.
A light ray travels through water and reflects off a glass surface back into the water. How do the phases of the incident light and the reflected light compare?.
The most active galactic nuclei are usually found at large distances from us; relatively few nearby galaxies have active galactic nuclei. What does this imply?.
Jason observes a process in an industrial facility. The process begins by mixing the first and second substances; after a while, the third substance is also observed. Based on the data in the table, which statement describes the process that is occurring? A. A physical change occurs when the first two substances combine. B. A chemical change occurs when the first two substances combine. C. A change occurs at the macroscopic, observable level, but no change occurs at the microscopic, molecular level.
find the drag force on a car traveling at 15 m/s. assume that the cars' cross-sectional area is 3.5 m^2, and that air has a density of 1.2 kg/m^3
A particle moves in a circle with radius 10 cm and with a uniform speed 1. 3 m/s. What is the centripetal acceleration of this particle?.
