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The first step in calculating the inductance of a coil is to invent an amount of current flowing through the coil. Suppose that a current of 6.00 is flowing through the wire of the toroid; what is t
List four renewable and four nonrenewable sources of energy. Name and briefly explain two alternative forms of energy currently under developement.
Our galaxy, the Milky Way, contains approximately 4.0*10^11 stars with an average mass of 2.0*10^30kg each. How far away is the Milky Way from our nearest neighbor, the Andromeda Galaxy, if Andromed
A guiter string is 90cm long and has a mass of 3.6g from the bridge to support post (L) is 60cm and the string is under a tension of 520. What are the frequencies of the foundamental and first two
A diverging lens (f = -10.0 cm) is located 24.0 cm to the left of a converging lens (f = 31.0 cm). A 3.00-cm-tall object stands to the left of the diverging lens, exactly at its focal point. (a) Det
The maximum depth that a diver can snorkel is set by the density of the water and the fact that humans can function against a maximum pressure difference (between inside and outside the chest cavit
A ball with a mass of 0.75kg is thrown vertically into the air with an initial velocity of 10m/s. Determine the velocity of the ball when it hits the ground if it was intially released 2.0m above t
A dentist uses a small mirror with a radius of 45 mm to locate a cavity in a patient's tooth. If the mirror is concave and is held 13 mm from the tooth, what is the magnification of the image?
Two charged objects have an attractive force of 1.3N. If the charge on one of the objects in tripled, what is the new force between the objects?
A 1650-kg car is traveling at 26.0 m/s. How fast must a 91.0-kg bicycle and rider be traveling to have the same kinetic energy as the car?
The drawing shows a hydraulic chamber in which a spring () is attached to the input piston, and a rock of mass 40.0 kg rests on the output plunger. The piston and plunger are nearly at the same heig
How much heat is absorbed by a persons hand if 100 grams of steam at 100°C is first converted to liquid water at 100°C and then cooled to normal body temperature?
A baseball pitcher throws a fastball at a speed of 45 m/s. The acceleration occurs as the pitcher holds the ball in his hand and moves it through an almost straight-line distance of 4.0 m. Calculat
Calculate the force that acts on a square access hatch at the bottom of the tank that measures 0.25m by 0.25m.
A car travels at a constant speed around the circular track or a radius of 2.6 km. it goes around the track once in 360 seconds. A. What its centripetal acceleration (magnitude only)
wheel of radius 0.20 m is mounted on a frictionless horizontal axis. A massless cord wrapped around the wheel is attaches to a 2.0 kg block that slides on a horizontal frictionless surface. If a hor
A uniform steel ring 60in in diameter and weighing 600lb is lifted by the three cables each 50in long attached at points A,B and C as shown. Compute the tension in each cable.
A 350 kg piano slides 3.9m down a 23 degree incline slope, and is kept from accelerating by a man who is pushing back on it parallel to the incline. what is the force done by the man?
A 2.0cm-high object is situated 15.0cm in front of a concave mirror that has a radius of curvature of 10.0cm. Using a ray diagram drawn to scale, measure a) the location and b) the height of the im
A space probe is launched vertically from the surface of Zero with an initial speed of 4.0 km/s. What is the speed of the probe when it is 3.0 ´ 106 m from Zero's center?
Another particle, of mass 8.4 E-27 kg, moves along the positive x-axis with a speed of 4.0 E 6 m/s. (Assume that mass is conserved.) Determine the third particle's speed and direction of motion.
Describe an experimental method for determining the center of mass of any object, including irregularly shaped objects.
The bottom of the spring, whose spring constant is 510 N/m, is anchored to the ground. What is the rocket's speed when the spring has stretched 40 cm?
The temperature difference between the inside and outside is the same for the wall and the window. Of the total heat lost by the wall and the window, what is the percentage lost by the window?
Keeping her 142 N force directed at 27.0° above the line of the incline. If the coefficient of friction is unchanged, what is the new acceleration of the box?