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A car traveling at speed v takes distance d to stop after the breaks are applied. What is the stopping distance if the car is intially traveling 8.0v? Assume that the acceleration due to the braking is the same in both cases. Answer has to be in terms of d.
An ideal massless spring is hanging vertically. When an unknown mass is attached to the spring, What is the frequency of the resulting oscillation
A 57.0 kg cheerleader uses an oil-filled hydraulic lift to hold four 130 kg football players at a height of 1.20 m. what is the diameter of the football players' piston
question1an artillery shell is fired with an initial velocity of 310 ms at 57.0deg above the horizontal. it explodes on
A bat can detect small objects, such as an insect, whose sizeis approximately equal to one wavelength of the sound the batmakes. what is the smallest insect a bat can detect
What is the mass of the fluid, the final specific volume, work energy transfered and the heat energy supplied?
A 5.0 µC point charge is placed in an external uniform electric field of 2.00 104 N/C. At what distance from the charge is the net electric field zero
Two point charges are on the y-axis. A 4.50 μC charge is located at y=1.25cm, and a -2.24μC charge is located at y=1.80 cm. Find the total electric potential at (a) the origin and (b) the point having coordinates (1.50cm, 0).
A blackened roof measures 20 m by 50 m. If the temperature of the sun's surface is 6000K, Stefan's constant (σ) is 5.7 x 10-8 Wm-2K-4, Determine how much solar energy is incident on the roof per minute
A student sits on a swivel seat. Initially the student is at rest, holding a spinning bicycle wheel that has an angular velocity of 10.5 rad/s, Find the student's final angular velocity
In the first-order spectrum, maxima for two different wavelengths are separated on the screen by 2.62 millimeter. Find the difference between these wavelengths
Light of wavelength 646 nm from a distant source is incident on a slit 0.760 mm wide, and the resulting diffraction pattern is observed on a screen 3.60 m away. What is the distance between the two dark fringes
A dolphin swims near the sea surface 350 meter west, then 200 meter northwest, and then dives below the surface and swims an additional distance in an unknown direction. Obtain the dolphin displacement during the dive
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