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A 0.17- kg block on a wooden table is given a sharp blow with a hammer. The block then slides across the table to a stop. The coefficient of friction between the block and table is 0.25. The hammer's force on the block as a function of time is well approximated by an isosceles triangle with it's base on the horizontal time axis. The length of the base is 0.0080 s and the maximum force is 34.0 N. How far does the block go? Use a graphical technique.
A parallel-plate capacitor has an area of 0.12 m^2 and a separation of 1.2 cm. A battery charges the plates to a potential difference of 120V and is then disconnected. A dielectric slab of thickness 4.0 mm and dielectric constant 4.8 is then place..
A man throws a ball such that it strikes a wall of a building at the max height of its trajectory. If it takes 1.15 seconds to travel from man to the building, determine the velocity at which it was thrown, the angle, and the height of the building.
Suppose you walk 18 m straight East and then 26.5 m straight South. How far are you from your starting point in meters
make use of the force equation of equilibrium with torques to compute around the second pivot pt, fine the women's position when the beam is about to tip.
A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 30.0 min at 90.0 km/h, 5.0 min at 90.0 km/h, Determine the average speed for the trip
A Hall-effect probe operates with a 120 -mA current. When the probe is placed in a uniform magnetic field of magnitude 0.0780 T, The thickness of the probe in the direction of B is 1.60 mm. Find the density of the charge carriers
An observatory has an 8-inch Celestron telescope. Estimate the diffraction limit of this telescope. Estimate the minimum size a feature on the surface of the Sun must have to be resolved by this telescope.
What is the total charge of the uranium nucleus? (The neutral uranium atom has 92 electrons.), What is the magnitude of its electric field at a distance of 1.48×10-10 m from the nucleus
Under some circumstances, a star can collapse into an extremely dense object made mostly of neutrons and called a neutron star. find the angular speed of the neutron star
In order to heighten your enjoyment of your 29-carat blue diamond, you view it through a lens held close to your right eye, estimate the focal length of the lens
1.) A 0.50kg bullfrog is sitting at rest on a level log. How large is the normal force of the log on the bullfrog. 2.) A second 0.50kg bullfrog is on a log tilted 38 above horizontal. How large is the normal force of the log on this bullfrog
The position function x(t) of a particle moving along an x axis is x = 4.0 - 4.5t2, with x in meters and t in seconds. At what negative time does the particle pass through the origin
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