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As you are riding in a 1650-kg car, you approach a hairpin curve inthe road whose radius is 50m. the roadbed is banked inward at anangle of 10 degrees.
a) suppose the road is very icy, so that the coefficient of staticfriction is essentially zero. what is the maximum speed at whichyou can go around the curve?
b) now suppose that the road is dry and that the static frictioncoefficient between the tires and the asphalt road is .6 whatis the maximum speed at which you can safely go around the curve.
On planet Bohrod, the acceleration due to gravity is the sameas that on Earth but there is also a strong downward electric fieldwith the feild being uniform close to the planet's surface. What is the equilibrium position of the mass
A high-intensity desk lamp is rated at 75 W, but its bulb requires only 9 V. The lamp contains a transformer that converts 110 V household electricity. What is the resistance of the bulb when it is on
Runner A is initially 2.0 mi west of aflagpole and is running with a constant velocity of 4.0 mi/h due east. How far are the runners from the flag pole when they meet
A bullet of mass 10g and speed 500 m/s is fiered into a door and gets embeded exactly at the centre of the door, Calculate the angular speed of the door just after the bullet embeds into it
In the figure below, water flows through a horizontal pipe, and then out into the atmosphere at a speed of v1 = 13 m/s. What is the gauge pressure in the left section of the pipe
A worker on top of a radar tower 21.8 ft high drops a wrench off the tower. What is the speed of the wrench when it hits the ground
a sewing machine needle moves with a rapid vibratory motion rather like shm as it sews a seam. suppose the needle
A 2000-kg car travelling at an initial speed of 50 km/h skids to a stop with a constant acceleration. Determine the length of the skid marks
Find the angle with respect to the ground
In the Bohr model of the hydrogen atom, an electron (mass m=9.1×10?31kg) orbits a proton at a distance of 5.3×10?11m. How many revolutions per second does the electron make
You have a string with a mass of 0.0125 kg. You stretch the string with a force of 9.75 N, What is the wavelength of the standing wave you create in the string and What is the frequency
an airplane is flying at v100ms along the straight line at an altitude h5000m. at the instant when it is over an
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