Physics

You find some limestone rock in southern Indiana and notice that it has fossil trilobites in it. Later you find the same fossil trilobites in a limestone in Colorado. From this you determine that the two rock types were deposited during the same time period using what concept or principle?
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Bumper cars are a fairground ride and are designed to bump into each other. Two bumper cars moving towards each other. 1. )Give two factors that affect the momentum of each bumper car. [2marks]2. )The bumper cars crash into each other and stop. Explain why both bumper cars stop after the crash. [4marks]
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A cardboard box sits on top of an asphalt driveway. the coefficient of static friction is 0.7 and the coefficient of friction is 0.4 . the mass of the box is 10 kg and a horizontal force of 15 n is applied. what is the gravitational force?what is the frictional force?what is the acceleration?
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31. Two parallel rails with negligible resistance are 10. 0 cm apart and are connected by a 5. 00 ohm resistor. The circuit also contains two metal rods having resistances of 10. 0 ohm and 15. 0 ohm sliding along the rails (Fig. P31. 31). The rods are pulled away from the resistor at constant speeds of 4. 00 m/s and 2. 00 m/s, respectively. A uniform magnetic field of magnitude 0. 0100 T is applied perpendicular to the plane of the rails. Determine the current in the 5. 00 ohm resistor. question taken from physics for scientists and engineers, 6th edition. Chapter 31, q. 31
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The microwave transmitters that we use have a frequency of about 10 ghz. What is the approximate wavelength?.
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Eye color is an example of a??
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your group has invented a solar cell that works by applying photosynthesis chemistry to generating hydrogen which is stored for use in a fuel cell. in 10 different regions differing by weather. you set up solar-city installations (using solar cells and lead acid batteries for storage) and your technology comparing the kilowatt hours generated in a month the results are:
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A 12 V battery is connected across two parallel metal plates separated by 0.59 cm. Find the magnitude of the electric field.
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Answer Please With Explanation
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What is the speed of light in a medium having anabsolute index of refraction of 2.3?
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12) A girl of mass 50 Kg transports a box of mass 20 Kg up a flight of 10 steps, each step 20 cmhigh. She takes 16 Seconds to climb up the steps. a. What is her weight?b. What is the weight of the box?c. When she reaches the top what vertical height has she traveled?Pls help its urgent and I will mark you brainliest
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How does a van de graaff generator create static electricity?.
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You travel 20.0 km to the right and you realized you have to drive back 5.0 km. the journey took 2 hours to complete. find the following:a. the total distance you traveledb. the total displacement you traveledc. your average speedd. your average velocity(pls put an explanation the the answers ty!!)
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Which class of fires consists of flammable liquids including.
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An unknown force is applied to a 12 kg mass. The force acts at an angle of 30.0 degrees above the horizontal.Determine the force acting if the force acts for a horizontal displacement of 22 meters and increases the 12 kg mass'sspeed from 11 m/s to 26 m/s.
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Water has a specific heat capacity of 4. 184 J/g. The experiment heated 200g of water from 30 to 100. How much energy is absorbed by the water?1) 25,104J2) 83,680J 3) 14,000J4) 58,576J
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c. To what height can a 400w engine lift a 100kg mass in 3s?
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While at the parent-teacher conference, murphys teacher mentions that the apollo program-the same program that landed humans on the moon-was just propaganda to convince the soviet union to bankrupt themselves trying to do the same. the reason for this was to encourage children to take care of their own planet, rather than wasting precious resources day dreaming of leaving it. which side of the fence would you sit on? would you look for ways to save earth and our ability to stay there, or would you look to the sky, and find a new plant to live on? why? interstellar movie
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6.Sonography uses infrasonic waves to create images of objects found inside other objects.TrueFalse
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What angular acceleration would be required in order to stop the earth from rotating over a period of 30.0 minutes
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1. Describe something other than the examples you've been given that you believe uses acapacitor and describe its function in the device.
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What is the absolute index of refraction of medium x?
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A harmonic wave travels in a wire with amplitude 2.51 mm, wavelength 1.09 m, and frequency 649 hz. what is the speed with which the wave travels
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PLS ANSWER ASAP 1. A gardener uses a wheelbarrow to move 20 kilograms of soil from a compost pile to a flower bed, a distance of 53 meters. The wheelbarrow has a mass of 17 kilograms. he expands 94.5 Newtons of forced. How much work does the gardener do? (1 point)O 135.4 NO 5,008.5 NO 1,961 NO 3,496 N2. A force of 30 N is applied to a ball, and it takes the balls 1.5 seconds to travel 4 meters. What is the work done on the ball? (1 point)O 45 JO 80 JO 120 JO 180 J3. A mechanic wants to use a compound pulley to lift a go-kart from the ground to work table, a distance of 1.2 meters. Without the pulley, 1,620 Newtons of force would be needed to lift the go-kart. If the pulley has a mechanical advantage of 4, how much force must the mechanic expend? (1 point) O 1,616 N O 405 N O 5,400 N O 1,350 N
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