Physics

A 1. 0-kg wheel in the form of a solid disk rolls along a horizontal surface with a speed of 6. 0 m/s. What is the total kinetic energy of the wheel
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The thinking distance and braking distance for a car vary with the speed of the car. explain the effect of two other factors on the braking distance of a car. do not refer to speed in your answer.
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Q20 - from a distance of 2000 m, the sound intensity level of a rocket launch is 102 db. what is the sound intensity level (in db) of the rocket launch from a distance of 20 m
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Doug places a toy car at the top of the first hill and releases it. the car stops at point x. which change to the model would allow the toy car to travel over all three hills?a.add a loop after the tallest hill in order to maximize the kinetic energy of the car.b.order the three hills from shortest to tallest so that the potential energy builds up according to the height of each hill.c.order the three hills from tallest to shortest to provide the potential energy needed for the car to make it over each hill.
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The 75. 0 kg hero of a movie is pulled upward with a constant acceleration of 2. 00 m/s2 by a rope. What is the tension on the rope?585N75. 0N885N11. 8N
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Estimate how long dr.mann went without human contact while on the ice planet: the lazarus mission was ___ years ago. it takes ____ years to get to saturn from earth. copper and dr. brand were on millers planet for approximately _____ years. this means that the total time dr. mann went without human contact is: _____ years.
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Two billard balls with identical mass move toward each other, with the positive x-axis to the right. Assume that the collision between them is elastic. If the initial velocities of the balls are +40.0 cm/s and -30.0 cm/s, what are the velocities of the balls after the collision? Assume friction and rotation are unimprotant.
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1. Which property distinguishes all electromagnetic waves from mechanical waves, such as sound waves and water waves? A. The ability to travel in a vacuumB. Very short wavelength C. Oscillations that are perpendicular to the direction of motionD. Oscillations that are parallel to the direction of motionPLEASE HELP
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19. Evaluate the frequency of the third harmonics of aclosed pipe of length 0. 3m. [speed of sound in air = 340ms-'](a) 1416. 7Hz (b) 850. 0Hz(c) 1511. 1 Hz(d) 283. 3 Hz
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Explain why knowing a combination of grappling and striking martial arts is advantageous during a street self defense scenario. Explain how both are beneficial
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Students performed a stair-climbing experiment to investigate the power output of the human body. Each student claimed a set of stairs while other student used a stopwatch to time the climb. The body mass, time, and vertical height reached by four students is given in the table. (Estimate g as 10m/s^2) which student generated the GREATEST amount of power in the experiment?
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If a object is placed between a convex lens and its focal point, the image formed is:.
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AM radio stations are assigned frequencies in the range between 550 and 1600KHz. The speed of radio waves is 300000000 m/s. What wavelengths do these radio signals span?
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Two moles of helium gas initially at 268 Kand 0.51 atm are compressed isothermally to1.5 atm. Find the final volume of the gas. Assumethat helium behaves as an ideal gas. Theuniversal gas constant is 8.31451 J/K mol.answer in units m^3
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A calorimeter of mass 60 g contains 180 g of water at 29C. Calculate the common finalequilibrium temperature of the mixture if 37. 2 g of ice at - 10C is added to it. Specificheats are given as follows: ice = 2108 J/kg. K, calorimeter = 0. 42 J/g. C, water =4186J/kg. C and latent heat of fusion for ice is 333 kJ/kg
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he charge carriers continue to separate until the magnetic force exactly balances the electric force generated by the newly created electric field. at this equilibrium condition, what is the strength of the electric field e ?
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If you put more mass on a cart so it hovers closer to the track, what happens to the magnetic potential energy?
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A 30 kg block with velocity 50 m/s is encountering a constant 8 N friction force. What is the momentum of the block after 15 seconds?
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an object is placed at a concave mirror's center of curvature. the image produced by the mirror is located select one: a. between the focal point and the surface of the mirror. b. between the center of curvature and the focal point. c. at the center of curvature. d. at the focal point.
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Distant galaxy is simultaneously rotating and receding from the earth. As the drawing shows, the galactic center is receding from the earth at a relative speed of uG 5 1. 6 3 106 m/s. Relative to the center, the tangential speed is vT 5 0. 4 3 106 m/s for locations A and B, which are equidistant from the center. When the frequencies of the light coming from regions A and B are measured on earth, they are not the same and each is diff erent from the emitted frequency of 6. 200 3 1014 Hz. Find the measured frequency for the
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1) Three masses hang about a 3 meter stick whose fulcrum is at50cm. A mass of m1=60.0 kg hangs at the 90.0 cm mark, m2= 20.0 kg hangs at the 20.0 cm mark. Find the location of the mass, m3= 10 kg to obtain static equilibrium. If it is not possible to reach equilibrium, then select a new pivot point and draw a new diagram that will allow the system to reach static equilibrium with the same lever arms values as before for all masses.
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Which statement best describes what would happen if the current in the coil of an electromagnet were increased? A. The electromagnet would stop working until the current became steadyB. The magnetic field would not changeC. The magnetic field would decreaseD. The magnetic field would increase
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which of the following best describe the weather conditions at location B
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Please help me Quick !!!!
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