Physics

A furniture crate of mass 60 kg is at rest a loading ramp that makes an angle of 25 with the horizontalThe coefficient of kinetic friction between the crate and the ramp is 0.2. What force, applied parallel to the incline, is required to push the crate up the incline at a constant speed?
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The body weighs 15N. What is the mass of that body?
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What is centripetal force and elastic force
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Please help someone. A generator consumes 147 joules of energy in fuel and produces 75 joules of energyin electricity. Engineers are challenged to produce a generator that is 20% moreefficient. Which of the following combinations of input and output energy represents a generator that has met this design challenge? a. 150 joules of fuel to produce 90 joules of electricity b. 135 joules of fuel to produce 68 joules of electricity c. 60 joules of fuel to produce 100 joules of electricity d. 115 joules of fuel to produce 82 joules of electricity
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What is the average speed of a car that travels 30 m in the 3 secs and 2 m 4 secs and 20 m 5 secs
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mrs. knight drops her briefcase. when the briefcase lands on the floor, what is the reaction force to the action force of the briefcase on the floor?
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What is the magnitude of the resultant ofa 3.0-meter displacement and a 4.0-meterdisplacement as shown in the diagram?A. 1.0 meter4.0 metersB. 5.0 meters3.0 metersC. 7.0 metersD. 12 meters
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Best way to demonstrate that waves transfer energy
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The slope of a line on a distant-time graph isA. distanceB. timeC. speed
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An object is dropped from a building and strikes the ground with a speed of 52 m/s. How tall is the building?
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So i need help- with science
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. Prior to Remy's trip to Cleveland, his uncle tells him about this amazing barbecue restaurant there and raves aboutthe food and live music. Remy looks it up once he gets to Cleveland, and he finds that there are a number ofnegative reviews about it. Nevertheless, he focuses on the few positive reviews he comes across, convinces himselfthey are probably more valid than the negative ones, and decides to go to the restaurant after all. Remy has likelybeen influenced by:the availability heuristic.confirmation bias.O the representativeness heuristic.oming
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1. How much energy is needed just to melt 0.56kg of ice at 0 C?2. How much energy is needed just to boil 5kg of water at 100 C?3. What is the specific heat of metal if its mass is 27 g and it requires 420 J of heat energy toincrease its temperature from 25C to 50C?please help me out I dont have much time
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write the function of alcohol in a alcohol thermometer.
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Share your thoughts about this statement by John Wesley"Electricty is the soul of universe"
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If there were no dark energy in the universe, the value of __________ would solely determine the evolution and fate of the universe.
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Does light have a shadow?
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Explain why the formation of sand is a physical change.
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is it true that playing badmenton help you to become a better person?
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2. A ray of light is incident at 60 in the air on an air glass plane surface find the angle of refraction in the glass. (mew for glass=1.5)[tex] [/tex]
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how long does it take to reach the moon?
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Convert: 12 km/hr =m/s
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An action that has the ability to change an objects state of motion is
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a -0.06 C charge is placed in a uniform electric field with a strength of 200 N/C. what is the magnitude and direction of the force on the charge
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