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To qualify for the finals in a racing event, a race car must achieve an average speed of 250 km/h on a track with a total length of 1,600 m. If a particular car covers the first half of the track at an average speed of 210 km/h, what minimum average speed must it have in the second half of the event in order to qualify?
What is error in the simple pendulum approximation
When the power is turned off on a turntable spinning at 90.0 rpm , you find that it takes 11.8 revolutions for it to stop while slowing down at a uniform rate. A) What is the angular acceleration (in rad/s^2), of this turntable? B) How long does it t..
Suppose the gravitational force between two massive spheres is 100 N. If the distance between the spheres is doubled, what is the force between the masses.
In a 1.28T magnetic field directed vertically upward, a particle having a charge of magnitude 8.80uC and initially moving northward at 4.72 km/s is deflected toward the east
A double slit is opposite the center of a 1.7-m wide screen 2.3 m from the slits. The slit separation is 24 µm and the width of each slit is 7.2 µm. How many fringes are visible on the screen if the slit is illuminated by 590-nm light?
Expand Lagrangian to second order about equilibrium coordinates, r_0, phi = wt and find the condition for stability against small oscillations.
a 4 cm diameter vertical cylinder is sealed at the top by a frictionless piston. the piston is 23 cm above the bottom
A sphere of mass ofm= 1.40 kg is first placed directly on the plate of an electronic scale. The scale shows 13.73 N as the weight of the object. Calculate the density of the sphere
while the other terminal of the ammeter is connected to the other wire, ammeter shows that the current through the wire is 1 A. You then disconnect everything and travel to the other end of the telephone line, where you repeat the process and find ..
two capacitors c1 6.00 microf and c2 14.0 microf are connected in parallel and the resulting combination is connected
Point B is at ft. A force vector of pounds is applied at point B. 1) Determine the x-component of the moment of the force about the origin.
A converging lens of focal length 8.000 cm is 20.3 cm to the left of a diverging lens of focal length -6.00 cm. Find the magnification of the coin's final image
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