Physics

During the course of a hot, summer day the temperature of the wooden beam slowly increases from 15C at night to a final temperature of 35C during the day. Calculate the amount of heat transferred to the wooden beam if it has mass 60kg
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dx=7.14 m and dy=-7.55 m find the direction
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Why is the sun so much bigger & brighter than the other stars in the sky?
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How many grams are in 0. 02mol of Mg (25. 3g/mol)
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PLEASE HELP!!! 25 points
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Four students made a graphic organizer describing the parts of the atom. which table best describes the parts of the atom? a 3 column table with 3 rows. the first column is labeled particle with entries proton, electron, neutron. the second column is labeled charge with entries positive, 0, negative. the last column is labeled location with entries outside nucleus, outside nucleus, inside nucleus. a 3 column table with 3 rows. the first column is labeled particle with entries proton, electron, neutron. the second column is labeled charge with entries negative, 0, negative. the last column is labeled location with entries inside nucleus, outside nucleus, inside nucleus. a 3 column table with 3 rows. the first column is labeled particle with entries proton, electron, neutron. the second column is labeled charge with entries 0, negative, positive. the last column is labeled location with entries outside nucleus, inside nucleus, inside nucleus. a 3 column table with 3 rows. the first column is labeled particle with entries proton, electron, neutron. the second column is labeled charge with entries positive, negative, 0. the last column is labeled location with entries inside nucleus, outside nucleus, inside nucleus.
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A group of science students take a class trip to a coastal area to learn more about heat energy and heat transfer concepts. Choose the primary type ofheat transfer that occurs in the situations that follow. If heat transfer is not responsible for the situation that is described, choose letter d, "No heattransfer took place. "A student burned his finger on a hot charcoal grill. O ConductionO ConvectionO RadiationO No heat transfer took place.
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A drug tagged with 9943Tc (half-life = 6. 05 h) is prepared for a patient. If the original activity of the sample was 1. 0104 Bq, what is its activity (R) after it has been on the shelf for 1. 8 h?
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If a galaxy is receeding from the earth at 560,000 mi/hr, how far away is it from earth?
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Mel adjusted, in a futile attempt to strengthen his pectoral muscles, stretches a spring exercise device 0.73 meters by exerting a force of 177N. What is the stiffness constant
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I need help with this problem
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Name two everyday examples in which stored elastic potential energy is made use of. In each case state the energy transfer which occurs
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a simple pendulum has a period of 3.15 s. the acceleration of gravity is 9.8 m/s 2 . what is its length? answer in units of m.
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Pls help Asap this is on a timed quiz. _______ reaction is a process in which some substances change to other substances as chemical bonds break and reform. A. Physical B. Statistical C. Chemical D. Physiological
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A 0.1 kg toy train car moving at 1.0 m/s runs into a stationary car with a mass of 0.15 kg. At what speed do they move off together?
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A liquid (rho = 1.65 g/cm3 ) flows through two horizontal sections of tubing joined end to end. in the first section, the cross-sectional area is 10 cm2 , the flow speed is 275 cm/s, and the pressure is 1.20x105 pa. in the second section, the cross-sectional area is 2.50 cm2 . calculate the smaller sections (i) flow speed and (ii) pressure.
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What is the S-P difference (sec)?What is the amplitude (mm)?What is the distance (km)?What is the magnitude (M)?
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Which of the following occurs when an oscillating spring system reaches its equilibrium position?The kinetic energy is at its maximum.The restoring force is at its maximum.The potential energy is at its maximum.The velocity is 0.
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A football game begins with a kickoff in which the ball travels a horizontal distance of 45 yd and lands on the ground. Suppose the ball is punted from an initial height of 0.740 m.A) If the ball was kicked at an angle of 42.0 above the horizontal, what is the initial speed of the ball in this case? Express your answer using two significant figures.
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When energy leaves the suns core, it travels through the radiative zone in the form of ___.a. liquidsb. coronas c. electromagnetic wavesd. convection currents
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Can the potential of a non uniform charged sphere be the same as that of a point charge? Explain in details
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A typical color television draws about 2. 5 Awhen connected to an 89 V source. What is the effective resistance of the T. V. set?Answer in units of
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2. A woman lifts up a laundry basket 1. 5m and carries it 20m across the room. This takes 15s. Work is done on the laundry basket_*(20 Points)in walking across the roomduring the entire 15swork is not donein lifting the basket
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1. A car runs into a fence, and the fence dents the car. 2. Karen drops a marble on the ground, and it rolls across the floor in a straight line. 3. Matthew lets go of a recently blown up balloon, and it flies across the room as the air escapes. 4. Pushing your baby brother on the swing makes him go higher. 5. You place a pencil on your desk, and it stays there. Which laws of motion are each one?
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