Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
For a diverging lens in air with one flat surface, the radius of curvature for the curved surface is 20.0cm. what must the index of refraction be so that the focal length is -15.0cm?
If the potential difference across the primary coil is 25.0 V, what is the effective load resistance of the secondary coil if it is connected across a 125 ohms resistor?
A child pulls a friend in a little red wagon with constant speed. If the child pulls with a force of 16 N for 11.6 m, and the handle of the wagon is inclined at an angle of 29° above the horizon
How long after the switch is closed will it take for the current in the circuit to reach half of its maximum value ?
a. Calculate the total work done in one cycle in each cylinder of the engine, and the heat released when the gas is cooled to the temperature of the outside air. b. Calculate the volume of the air-f
An arrow, starting from rest , leaves the bow with a speed of 25.0 m/s. if the average force exerted on the arrow by the bow were doubled,all else remaining the same, with what speed would the arrow
You are designing a small coil (called a search coil) to measure magnetic fields. It is to have a diameter of 3.20 cm and is to be designed so that flipping it 180 degree in a field of 0.130 T cause
A 15.8 kO resistor and a capacitor are connected in series and then a 12.0 V potential difference is suddenly applied across them. The potential difference across the capacitor rises to 5.68 V in 1.
The velocity of a diver just before hitting the water is -11.6 m/s, where the minus sign indicates that her motion is directly downward. What is her displacement during the last 1.12 s of the dive?
A hot-air balloon is rising upward with a constant speed of 3.87 m/s. When the balloon is 3.73 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much
Gun A is fired straight upward, with the pellet going up and then falling back down, eventually hitting the ground beneath the cliff. Gun B is fired straight downward. In the absence of air resistan
Find (a) the magnitude of the resultant vector A+B+C+D , and (b) its direction as a positive angle relative to due west.
Fifteen bright spots appear on the screen. (a) Find the maximum possible value for the slit separation in the diffraction grating.
You measure the velocity of an electron to an accuracy of ±12.3 m/s. What is the minimum uncertainty in its position?
A small satellite is 10,000 km above the center of a planet and orbits it once in 100 min. What is the mass of the planet? (Assume the satellite's mass is much less than the planet's mass.)
In the distant future, an astronaut drops a wrench on an alien world. The wrench falls from rest a distance to 1.22 m to the ground, and it takes .672 seconds to fall. What is the acceleration due t
Bubba drops a small pebble down a well shaft one day to see how deep it is. He notices that it takes the pebble 2.76 seconds to reach the bottom of the well.
The distance between the centers of two binary stars is R. Star 1 has a mass Mo and star 2 has a mass of 2Mo. In terms of R, how far from the center of star 1 is the point where the two gravitationa
The copper object is then submerged in water so that half its volume is below the water line. Determine the new fundamental frequency.
What force does the lift exert on the hay bale (what is the normal force between the lift and the hay bale)?
Billy bob is driving along one day talking on his cell phone instead of paying attention to what he is doing. He drives right off of a 25 foot cliff at 42 mph. How far from horizontally from the ed
Light is emitted from an ordinary lightbulb filament in wave-train bursts about in duration. What is the length in space of such wave trains?
How long does it take for bubba to pass the truck (from bubba's front bumper alongside the truck until his back bumper is alongside the truck)?
Convert each set of measurements to meters and find the mean length for each group. The conversion factors are 1 in = 2.54 cm and 1 cm =0.01 m. Remember that conversion factors are exact and do not
Finally, the student turns and walks a distance of 25.1 meters in a direction of 22 degrees south of east in 30.3 seconds. What is the average speed that the student was moving?