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Can someone help me with question letter B.the question letter b also want the scale and the resultant force.thank youu
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A piece of copper (c = 0.385 ) undergoing a temperature change from 150°C to 225°C absorbs 3,500 joules of energy.What is the mass of the piece of copper? Express the answer to the nearest whole num
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Given 5-ml and 10-ml pipets and 50-ml and 100-ml volumetric flasks, what are the possible concentrations you could make in one dilution of the kcl solution above? what are the maximum and minimum conc
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A piece of copper (c = 0.385 ) undergoing a temperature change from 150°C to 225°C absorbs 3,500 joules of energy. What is the mass of the piece of copper? Express the answer to the nearest whole nu
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Determine the voltage of source v2 in order for a 50a current to be delivered to the 0.5 ohm load resistor.
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Data from 50 large u.s. cities show the mean january temperature (degrees fahrenheit), altitude (feet above sea level), and latitude (degrees north of the equator) for 55 cities. here's the correlatio
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Circuit a has a v = 5v. what v would correspond to 12 the work done by the electric force on a charge traveling in circuit a?
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At the same moment from the top of a building 3.0 × 10 2 m tall, one rock is dropped and one is thrown downward with an initial velocity of 29 m/s. both of them experience negligible air resistance.
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At a given instant the football player at a throws a football c with a velocity of 20 m / s in the direction shown. player b is 15 m away from a when a starts to throw the football.
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Assume a program requires the execution of 50 × 106fp instructions, 110 × 106int instructions, 80 × 106l/s instructions, and 16 × 106branch instructions. the cpi for each type of instruction is 1,
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Approximately 80% of the energy used by the body must be dissipated thermally. the mechanisms available to eliminate this energy are radiation, evaporation of sweat, evaporation from the lungs, conduc
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A package is dropped from a helicopter moving upward at 1.5 m/s. if it takes 16.0 s before the package strikes the ground, how high above the ground was the package when it was released if air resista
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An electron is traveling through a uniform electric field. the field is constant and given by e⃗ =(2.00×10−11n/c)i^−(1.20×10−11n/c)j^. at t=0 , the electron is at the origin and traveling in
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A hawk flies in a horizontal arc of radius 9.9 m at a constant speed of 4.8 m/s. find its centripetal acceleration.
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A finch rides on the back of a galapagos tortoise, which walks at the stately pace of 0.060 m/s. after 1.5 minutes, the finch tires of the tortoise's slow pace, and takes flight in the same direction
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A 96 cm diameter loop is rotated in a uniform electric field until the position of maximum electric flux is found. the flux in this position is measured to be 4.71 × 105 n · m 2 /c. what is the elec
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Electricity from fusion nuclear energy A. is not possible. B. accounts for less than 15 percent of current world electricity production. C. has been achieved, but is not yet practical. D. has been in
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The first law of thermodymics states the ∆E=Q -W. is this also a statement of the principle of conservative of energy?
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Am unmanned spacecraft leaves for Venus which statements about the spacecrafts journey are true MORE THAN ONE ANSWERA the weight of the spacecraft keeps changing B the mass of the spacecraft keeps cha
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Satelite communication is only possible using A) analog transmission. B) digital transmission. C) sound waves to transmit signal. D) cellular devices such as phones.
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A rocket rises vertically, from rest, with an acceleration of 3.0 m/s2 until it runs out of fuel at an altitude of 1100 m. After this point, its acceleration is that of gravity, downward.
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Which of the following is an accuratestatement? A. Step-up voltage transformers have a lower number of turns in the primary than in the secondary winding. B. Step-down voltage transformers have a dif
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Wo bar magnets are hung from metal rods and held in the position shown below. The magnets are released and swing freely. Which diagram best predicts their final position?
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What is the gravitational force between a car and a truck that are 5m apart , cars mass is 1500kg while trucks is 3800kg? A- 228,000 B- 1.52× 10^-5N. C- 7.60×10^-5N. D- 9.89×10^-5
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In Niels Bohr’s model of the atom, how are electrons configured? like popcorn in a popcorn popper like droplets in a cloud like planets orbiting the sun like raisins in plum pudding
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A forest fire makes a loud roaring sound. The explosive processes that release energy from the Sun occur at a much higher temperature. Why don’t you hear a roaring sound from the sun?
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Match the serving size with the correct type of food. ANSWER OPTIONS: unlimited, cut in half, size of fingers, palm of hand PROBLEMS: 1. bagel: 2. chicken: 3 .raw carrots: 4. celery: 5. cotta
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How does distance between two objects affect their gravitational force? Force increases as distance increases. Force decreases as distance increases. Force decreases as distance decreases. Force i
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(02.05 LC) Readers who purchase singer/actress Jennifer Hudson's I Got This: How I Changed My Ways and Lost What Weighed Me Down will most likely read about things that worked for Hudson, but might no
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It does not rain very often in the desert when it does ring the Seas with the desert wildflowers such as those shown below immediately begin the plants bloom make new season complete their whole life
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Covalent compounds exchange electrons in a chemical bond. have a low melting point. have weaker bonds than ionic compounds. are formed from one metal and one non metal.
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The charges onto metallic balls are 5.0 and 7.0 call looms respectively they are kept 1.2 m apart what is the force of interaction between the two
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A Batter swings at a baseball. The action force is the bat hitting the ball with a force of 5N. What is the reaction force? A. the hitter swinging the bat B. the pitcher throwing the ball C. the ball
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What quantity measures the number of complete cycles oscillation makes per second? a. Period b. Amplitude c. Frequency d. Force
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Find the amount of work done in emptying a cylindrical tank completely filled with kerosene. Assume that the radius of the cylindrical tank is 3 m, height is 6 m, and the density of kerosene is 817.15
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In a Venn diagram, the separate circles contain characteristics unique to each item being compared, and the intersection contains characteristics that are common to both items being compared. Maggie i
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Fluorine has an atomic number 9. It is in period 2 of the periodic table. The diagram shows the electron dot diagram of a fluorine atom.
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I NEED LAB REPORT PLZ READ CAREFULLY AND ASK ME IF YOU HAVE ANY QUESTIONS.
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Peer pressure is when someone is pressured to do something by members of their social group. It can be a very powerful force that encourages someone to do something that he or she is not comfortable d
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A wrecking ball has a mass of 650 kg. It swings from a cable that is 21 m long. The centripetal force on the ball is 56 N. What is the tangential speed of the wrecking ball? 1.3 m/s 1.8 m/s 46 m/s 870
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What is the maximum kinetic energy k0 of the photoelectrons when light of wavelength 330 nm falls on the same surface?
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Two protons are released from rest, one from location 1 and another from location 2. when these two protons reach location 3, the first proton has a speed that is 3.00 times the speed of the second pr
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Two conductors having net charges of 15.7 µc and −15.7 µc have a potential difference of 14.8 v. determine the capacitance of the system. answer in units of f.
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The heat of vaporization of water is 40.66 kj/mol. how much heat is absorbed when 3.48 g of water boils at atmospheric pressure?
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According to the work of the Curies, which action would increase the radioactivity of polonium? Dissolve the polonium in a solvent. Heat the polonium until it becomes a gas. Expose the polonium sample
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Which statement regarding the importance of human relations is false? A. People accomplish more in their work and personal lives when practicing good human relations. B. In general, people accomplish
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A 1.0-mm-diameter, 30-cm-long copper wire carries a 2.0 A current. What is the potential difference between the ends of the wire?
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You place the spring vertically with one end on the floor. you then drop a book of mass 1.50 kg onto it from a height of 0.600 m above the top of the spring. find the maximum distance the spring will
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When excited, elemental sodium gives off a distinctive color that is used often in street lighting. what is the predominant wavelength associated with the emission of atomic sodium? (you may need to c
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What must the charge (sign and magnitude) of a 1.55 g particle be for it to remain balanced against gravity when placed in a downward-directed electric field of magnitude 700 n/c ?
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