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A homogenous rod of length 5 m and a mass of 60 kg is kept in lever. Calculate the effort required to balance lever.
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What are greenhouse gasses? How does carbon dioxide enter the atmosphere? (Site 1)
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A thermometer measures the temperature of air and uses units like?
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Plz ans this fastUr ans will be maked as brainliest u'll get pts tooPlz solve this asap.....
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The Appalachian mountain range in the Eastern United States was once much taller than the Rocky mountain range in the Western United States. Currently, however, the Appalachian mountain range is much smaller than the Rocky mountain rangeWhat do you think may have caused this change in height?
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Parachutists are hurt when jumping on the moon's surface,why?
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Which statement is true about the ideal mechanical advantage of a third-class lever?A It is always greater than 1.B It is always equal to 1.C It is always less than 1.D It can be less than, greater than or equal to 1.
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5.Calculate the entropy changes for the following processes:(a)Melting of one mole of tin at its melting point, 213 C; Hfus = 7.029 kJ/mol(b)Evaporation of one mole of liquid carbon dioxide at its boiling point, 216.6 K. Hvap = 15.326 kJ/mol
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6) what is ararge of speed
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If a baseball is thrown straight up into the air, when does it have its greatest amount of gravitational potential energy?
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Commercials for a toy bouncy ball advertise that it will bounce to a height that is greater than theheight from which it was dropped. Why is this impossible?
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The average bullet has a mass of about 0.02 kg and travels at about 766 m/s when it's fired from a gun; howmuch kinetic energy does the average bullet have when fired?
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A 10 kg cart with a momentum of 10 kg m/s hits a 20 kg cart at rest. Momentum is calculated by usingthe formula p = mv, where m is the mass of an object and vis the velocity of an object.
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HIIIIII I NEED HELPPPPPPYou may choose to answer them all, but if you'd like, just answer a few of them :)1. The unit of electric potential or electromotive force is the _____.voltohmamperefranklin2. In a circuit, a battery is used to _____.conduct currentslow down currentraise the potential of electronsconvert electrical energy to some other form of energy3. Why is current supplied to consumers from generating plants in the form of alternating current?Direct current cannot be generated in the amount necessary to supply enough consumers.It is a much more efficient mode of transmitting electricity than direct current.This is the only form that current can be transmitted over the long distances.It is way too dangerous to transmit direct current to consumers' homes.4. When you turn on a television, the electrical circuit _____.closesopensdoes not move
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A charge of +80 C is placed on the x axis at x = 0. A second charge of 50 C is placed on the x axis at x = 50 cm. What is the magnitude of the electrostatic force on a third charge of 4.0 C placed on the x axis at x = 30 cm?
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Why does the gravitational force obey an inverse square law?
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In fair weather, the electric field in the air at a particular location immediately above the Earth's surface is 120 N/C directed downward. (a) What is the surface charge density on the ground? Is it positive or negative? (b) Imagine the surface charge density is uniform over the planet. What then is the charge of the whole surface of the Earth? (c) What is the Earth's electric potential due to this charge? (d) What is the difference in potential between the head and the feet of a person 1.75 m tall? (Ignore any charges in the atmosphere.) (e) Imagine the Moon, with 27.3% of the radius of the Earth, had a charge 27.3% as large, with the same sign. Find the electric force the Earth would then exert on the Moon. (f) State how the answer to part (e) compares with the gravitational force the Earth exerts on the Moon.
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A bus increases its speed from 30km/h to 60km/h in 2hours.Calculate the acceleration of the bus.pls give proper answer
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7. Explain how changes in temperature affect the particle motion of a substance. (3 points)
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SpongeBob SquarePants recently met SpongeSusie Roundpants at a dance. SpongeBob is heterozygous for his square shape, but SpongeSusie is homozygous for her round shape. Create a Punnett square to show the possibilities that would result if SpongeBob and SpongeSusie had children. HINT: square shape is dominant. A. List the possible genotypes and phenotypes for their children. B. What are the chances of a child with a square shape? out of or % C. What are the chances of a child with a round shape? out of or ____%
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(b) The speed of the vehicle is written as 90 km/h. State the speed in SI unit. Show your working in the space below.
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(0) Calculate the momentum of the vehicle when it moves at the maximum speed of 90 km/h with load of 3000 kg
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A particle starts with an initial velocity 3.5m/s and it accelerates uniformly at the rate 0.5m/s. The displacement in the first 3 seconds. *pls help me
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The specific heat(c) of copper is 0.39 J/g C. What is the temperature change(t) when 200 Joules of heat(Q) is added to 10 grams?
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