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One runner ran the 100-m dash in 11.9 s. Another runner came in secona at 12.4 s. Assuming that the runners traveled at their average speeds for the entire distance, determine the sepaaration between the two runners when the winner crossed the finish line.
Assume that Newton's law of universal gravitation can be applied to these two students and find the gravitational force (in Newtons) that one student exerts on the other when they are separated by 0.493 m. Consider entering the answer using scient..
How to compute the average force
A single electron orbits a lithium nucleus that contains three protons (+3e). The radius of the orbit is 1.76 10-11 m. Determine the kinetic energy of the electron.
A 3.5 k and a 1.5 k resistor are connected in parallel and this combination is connected in series with a 1.8 k resistor. If each resistor is rated at 1/2 W, what is the highest voltage that can be applied across the whole network.
What is the decibel level required for human perception
Drag race tires in contact with an asphalt surface have an extremely high coefficient of static friction. Assuming a constant acceleration and no slipping of tires, estimation the coefficient of static friction needed for a drag racer to cover 1.0 km..
A box weighing 77.0 N rests on a table. A rope tied to the box runs vertically upward over a pulley and a weight is hung from the other end. Determine the force that the table exert on the box if the weight hanging on the other side of the pulley ..
A 5g lead bullet travelling at 370-m/s is stopped by a large tree. If half the kinetic energy of the bullet is transformed into internal energy and remains with the bullet whilst the other half is transmitted to the tree, what is the increase in t..
The electric field points radially outward at all points within the sphere (and outside too, for that matter). What is the strength of the electric field at a distance r from the center, inside sphere.
A cluster of galaxies has a radius of about 5.2 million light-years (4.9×10^22) and an intracluster medium with a temperature of (6.5×10^7) K. Estimate the mass of the cluster. Give the answer in both kilograms and solar masses. Suppose combined l..
How long would it be on the incline before it arrives back at bottom.
What is speed of the resulting ball of clay
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