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As it orbits the Earth, the 11,000-kg Hubble Space Telescope travels at a speed of 7,900 m/s and is 560,000 m above the Earth's surface.
A penny is placed at the outer edge of a disk (radius = 0.124 m) that rotates about an axis perpendicular to the plane of the disk at its center. The period of the rotation is 1.73 s. Find the minim
A speed skater goes around a turn that has a radius of 26 m. The skater has a speed of 14 m/s and experiences a centripetal force of 480 N. What is the mass of the skater?
At one instant the outer wall moves at a speed of 2.78 m/s, and an 64.7-kg person feels a 209-N force pressing against his back. What is the radius of a chamber?
A small pumpkin is launched from a very versatile catapult at a variety of speeds and angles. Rank each of the following trials by the maximum height reached by the pumpkin. (1=highest) Consider air
A point charge Q = +4.40 µC is held fixed at the origin. A second point charge q = +2.0 µC with mass of 2.80 10-4 kg is placed on the x-axis, 0.250 m from the origin.
For instance, as a car is going through a turn, a speed of 99.5 m/s and centripetal acceleration of 2.51 g (2.51 times the acceleration due to gravity) are displayed. Determine the radius of the tur
A car travels at a constant speed around a circular track whose radius is 2.70 km. The car goes once around the track in 226 s. What is the magnitude of the centripetal acceleration of the car?
A jet plane has a takeoff speed of vto = 74 m/s and can move along the runway at an average acceleration of 2.0 m/s2. If the length of the runway is 2.1 km, will the plane be able to use this runway
After it has moved 8.00 cm, the additional force has done 6.85 x 10-5 J of work and the particle has 4.35 x 10-5 J of kinetic energy. (a) What work was done by the electric force?
A charge of 35.0 nC is placed in a uniform electric field that is directed vertically upward and that has a magnitude of 4.00 104 V/m. (a) What work is done by the electric force when the charge mov
If you disconnect the battery and separate the plates to a distance of 3.50 cm without discharging them, what will be the potential difference between them? Express your answer with the appropriate
The plates are 0.700mm apart. What is the potential difference between the plates? What is the area of each plate? What is the electric-field magnitude between the plates? What is the surface charge
What is the area of each plate? What is the electric-field magnitude between the plates? What is the surface charge density on each plate?
Two very large metal parallel plates that are 25 apart, oriented perpendicular to a sheet of paper, are connected across the terminals of a 50.0 battery.
A single slit 820 nm wide is illuminated with light of wavelength 555 nm. What is the angular width of the central bright spot?
The grating is illuminated with a beam of white light containing the 400 nm to 700 nm wavelength range. The angular width of the gap between the first order spectrum and the second order spectrum is
When a pair of slits is illuminated by white light, sometimes one order's "rainbow" will overlap with that of another order. For two slits, the third-order maximum for 400nm light occurs in the same
Light of wavelength 500 nm illuminates a 0.50 mm-diameter hole. A screen is placed 6.0 m behind the slit. The width of the central maximum on the screen is closest to:
The spacing of ruled lines on a diffraction grating is 1770 nm. The grating is illuminated with a beam of white light containing the 400 nm to 700 nm wavelength range. In this case the entire third-
A 4.0-oC charge is situated at the origin of an xy-coordinate system. What is the potential difference between a point x1 = 2.0 m and another point x2 = 5.0 m because of this charge? The answer is 1
The plates are separated by a distance of 1.7 cm, and the electric field within the capacitor has a magnitude of 2.7 x 106 V/m. What is the kinetic energy of the electron just as it reaches the positi
A moving particle encounters an external electric field that decreases its kinetic energy from 9480 eV to 8690 eV as the particle moves from position A to position B. The electric potential at A is
A bird flies 2.8{\rm km} due west and then 2.7{\rm km} due north. Another bird flies 2.7{\rm km} due west and 2.8{\rm km} due north. what is the angle between the net displacement vectors for the tw