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A car with good tires on a dry road can decelerate at about 5.0 m/s2 when braking. Assume the car is initially traveling at 55 mi/h.
(a) Determine how much time does it take the car to stop?
(b) Determine what is the stopping distance?
A flat (unbanked) curve on a highway has a radius of240 {\rm m}. A car rounds the curve at aspeed of 20.0 {\rm m}/{\rm s}. What is the minimum coefficient of frictionthat will prevent sliding?
A parallel-plate capacitor has an area of 2.0cm^2, and the plates are separated by 2mm.
An electron moves at a speed of 480m/s perpendicular to the direction of the uniform magnetic field of 1 T. What is the radius of the electron's circular orbit in units of nanometers (1 m = 109 nm)
The wingspan (tip-to-tip) of a Boeing 747 jetliner is 59 m. The plane is flying horizontally at a speed of 200 m/s. Find the emf induced between the wing tips
A 5.00 μF capacitor is initially charged to a potential of 16.0 Volt. It is then connected in series with a 3.75mH inductor. Determine the charge on the capacitor plates at the instant the current in the inductor is maximal
A piece of aluminum (c=0.910 J/gC) of mass 200g at 80C is droppedinto a foam cup filled with 100ml of water at 20C. Once the systemreaches equilibrium, what is the final temperature of the water and aluminum?
A woman weighs 800 N on earth. When she walks on the moon, she weighs only 133 N. What is the acceleration due to gravity on the moon
The weight of a 1200 kgcar is supported equally by the four tires, which are inflated to the same gauge pressure. What gauge pressure is required
A 6.30 x 10 -5 H solenoid is constructed by wrapping 54 turns of wire around a cylinder with a cross-sectional area of 6.4 x 10-4 m2. Determine the change in the length of the solenoid
1 a small steel ball bearing with a mass of 20.0 g is on a short compressed spring. when aimed vertically and suddenly
The refractive index n of glass depends on the color (wavelength) of the light passing through it. What is the angle between the blue beam and the red beam in the glass block
A 79-kg pilot in an aircraft moving at a constant speed of 495 m/s pulls out of a vertical dive along an arc of a circle of radius 4500 m. What is the pilot's apparent weight at the bottom of the dive
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