Physics

If the charge of each two particles is doubled and the seperation between them is also doubled. the force between the two particles is?
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A two-pole AC motor operates on a three-phase, 60 Hz, 240 Vrms line-to-line supply. What is its synchronous speed?a.1000 rpmb.1800 rpmc.2400 rpmd.3600 rpm
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If you had 3. 8 x 10^22 J of energy and you had a machine that could turn all of that energy into mass, what would be your mass in kg?
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The current-potential difference graph for a resistor is a straight line as long as the is constant. What is the missing word?
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what are the base units for the SI units are based on
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A small truck is moving at 20 m/s. A large truck, with twice the mass, is traveling at half the speed. How does the momentum of the larger truck compare to the smaller truck?
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A person walks 5. 0 kilometers north, then 5. 0 kilometers east. His displacement is closest to:.
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Calculate the pressure exerted by a girl on the ground if her mass is 50 kg and the areaof her shoes in contact with the ground is (a) 150 cm2 (high heels); (b) 400 cm2 (flatsoles). (take gravitational field strength g= 10 n kg)
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When investigating a crime scene, an investigator finds bullet holes in the wall out the window,across the street (about 100m away). These bullet holes are approximately 1. 1m off theground. The bullets from this particular weapon travel at a rate of 350m/s. Assuming theweapon was fired horizontally, at what height was the weapon fired? This insight will be used tonarrow the search for a suspect.
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Two ropes support a load of 478 kg. The two ropes are perpendicular to each other, and the tension in the first rope is 2. 2 times that of the second rope. Find the tension in the second rope. The acceleration of gravity is 9. 8 m/s 2. Answer in units of N
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A light ray of wavelength 589 nm traveling through air strikes a smooth, flat slab of crown glass at an angel of 30.0 to the normal. what is the angel of refraction (o.)? 15.2 degrees o 16.2 degrees 18.2 degrees 19.2 degrees
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young's double-slit experiment is performed with 568-nm light and a distance of 2.00 m between the slits and the screen. the tenth interference minimum is observed 7.08 mm from the central maximum. determine the spacing of the slits.
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Mike is cutting the grass using a human-powered lawn mower. He pushes the mower with a force of 45 n directed at an angle of 41 below the horizontal direction. Calculate the work that mike does on the mower each time he pushes it 9. 1 m across the yard.
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What is the angle of incidence for this ray?
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_______ assisted Anton Raphael Mengs with the iconography of his ceiling fresco, Parnasus, in the Villa Albani.A) Johann WinckelmannB) Cardinal AlbaniC) Jacques Louis DavidD) Joshua Reynolds
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Two lines meet at a point that is also the vertex of a right angle. Set up and solve an equation to find the value of. Find the measurements of CAE and BAG. 1: What is the value of x? 2: What is the value of CAE?3: What is the value of BAG?
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If you have a potential energy of 57 J. Now double your height, what is your new potential energy?
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NarrowerWrite True if the statement is correct and change the underlined word/s if it is wrong. 1. Gravity is a contact force that acts between two separate objects. 2 Gravity is the force exerted by the farth which is uivalent to the mass of an object.
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Cliff height you are climbing in the high sierra where you suddenly find yourself at the edge of afog shrouded cliff to find the height of this cliff you drop a rock from the top and 10.0s later hear the sound of it hitting the ground at the foot of the cliff
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During the Vector Addition lab, Mac and Tosh start at the classroom door and walk 35. 0 m, north, 65. 0 m east, 54. 5 m south, 30. 5 m west, and 4. 5 m, north. Determine the magnitude and direction of the resultant displacement of Mac and Tosh
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Eight identical point charges of Q coul each are placed at the corners of a cube whose sides have a length of 10 cm. . Find the electric field at the center of the cube. b. Find the electric field at the center of a face of the cube. c. Find the field at the center of the cube if one of the corner charges is removed
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Q.3. Fill the table to describe the characteristics of the states of matter.Do they havedefinite shape?VaporWaterIceStates ofMatterDo they havedefinite volume?Do theycompress?
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Two narrow slits are 0. 12 mm apart. Light of wavelength 550 nm illuminates the slits, causing an interference pattern on a screen 1. 0 m away. Light from each slit travels to the m=1 maximum on the right side of the central maximum. Part A) How much farther did the light from the left slit travel than the light from the right slit?Express your answer in nanometers
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A traffic fanatic wants to estimate the maximum number of cars that can safely travel on a particular road at a given speed. She assumes that each car is 18 feet long, travels at speed s, and follows the car in front of it at a safe distance for that speed. She finds that the number N of cars that can pass a given spot per minute is modeled by the function N(s)
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