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A probe is launched from Earth and lands on Mars. The gravitational acceleration on Mars is 3.7 m/s2. Which statement best compares the mass and weight of the probe? The mass of the probe remains the
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You happen to come across a piece of metal which has a density of ρ = 7.20 g/cm3 when the temperature is t0 = 40.0 °c. if the metal is cooled to a temperature of t1 = 0.00 °c does the density chang
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What is the minimum width of a single slit (in microns) that will produce three minima for a wavelength 687 nm?
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When a molecule of water vapro in the air come into contact with a cold can of soft drink, they lose energy, slow down, and form a liquid due to a decrease in what?
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Two point charges, with charges q1 and q2, are each moving with speed v toward the origin. at the instant shown q1 is at position (0, d.and q2 is at ( d, 0). (note that the signs of the charges are no
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The balloon has a total mass of 400 kg including the passengers and ballast. the balloon is rising at a constant velocity of 18 km>h when h = 10 m. if the man drops the 40-kg sand bag, determine the v
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Set the cannon height to 14 m and the initial speed to 20 m/s. show how to calculate the location of the target. verify your prediction using the simulation. [calculate first and then verify with simu
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In a certain oscillating lc circuit, the total energy is converted from electrical energy in the capacitor to magnetic energy in the inductor in 1.47 μs. what are (a) the period of oscillation in mic
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How much energy is required to rotate the propeller at 5600 rpm? ignore the energy required to push the air?
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F the intensity of an electromagnetic wave is 80 mw/m2, what is the amplitude of the magnetic field of this wave
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Determine the angular velocity of the 12-kg inner gear, measured clockwise, when the link has made two revolutions starting from rest.
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A water pipe tapers down from an initial radius of r1 = 0.23 m to a final radius of r2 = 0.08 m. the water flows at a velocity v1 = 0.84 m/s in the larger section of pipe. 1) what is the volume flow r
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A slab of ice floats on a freshwater lake.what minimum volume must the slab have for a 45.0kg women to be able to stand on it without getting her feet wet? she then stands on a boat and what is the ve
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An x-ray machine uses photons with a frequency of 1 x 1017s-1. calculate the wavelength of this radiation.
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A ground state hydrogen atom absorbs a photon of light having a wavelength of 92.57 nm. it then gives off a photon having a wavelength of 1944 nm. what is the final state of the hydrogen atom? values
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Impurities and weak flavor can be eliminated in a consommé by A. adding a clarification mixture. B. adding clarified butter. C. straining it through a fine mesh sieve. D. doubling the herb mixtures.
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A car of mass m traveling at speed v crashes into the rear of a truck of mass 2m that is at rest and in neutral at an intersection. if the collision is perfectly inelastic, what is the speed of the co
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A mass of 1.5 kg is attached to a spring and placed on a horizontal surface. The spring has a spring constant of 120 N/m, and the spring is compressed 0.25 m past its natural length. If the mass is re
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What is the magnitude and direction of the gravitational Field Midway between the earth and moon?ignore effects of the sun
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The pressure on the windows was generated by air pushing on the windows, which is the average _____ the air molecules are applying over the surface area of the glass.
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How is an image produced by a plane mirror different than an image produced by a convex mirror? It is smaller than the object. It is the same size as the object. It is inverted. It is upright.
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City B is north of City A, and the 400 mile trip by car takes 8 hours. The cities are 320 miles apart in a straight line. What is the velocity of a trip from City A to City B?
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A test car travels in a straight line the graph in the figure shows the cars position x as function of time. find its instantaneous velocity at point e
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Materials that have been layered within the jar. Even if these materials were shaken, they would separate back out into layers after sitting for a while. What property of matter is being demonstrated?
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You want to pull a 10 kg block up a frictionless ramp with an acceleration of 2.5 m/s2. What force do you need to apply along on the block along the direction of the ramp's surface if the ramp is angl
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Engineering question please helpI am revising for my exam and I am unable to answer one question, it is as follows:Is it possible to compress an ideal gas in a cylinder with piston isothermally in an
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Is the state of the air in an isolated room completely specified by the temperature and the pressure? Explain
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In the early 19th century Christian Doppler, an Austrian physicist, proposed a theory regarding the properties of a moving source of sound. This is now known as Doppler’s law or the Doppler effect.
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Suppose a star the size of our Sun, but of mass 9.0 times as great, were rotating at a speed of 1.0 revolution every 17 days. If it were to undergo gravitational collapse to a neutron star of radius 1
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Which statement comparing the box plots is true? Both the median and the range changed. Both the range and the lower quartile changed. Both the median and the interquartile range changed. Both the int
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Which of the following is only a muscular strength activity you can do at school Walking Dancing Martial arts Push ups
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Sixty-three joules of heat are added to a closed system. The initial internal energy of the system is 58 J, and the final internal energy is 93 J. How much work is being done by the system?
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car is traveling at 20 meters/second and is brought to rest by applying brakes over a period of 4 seconds. What is its average acceleration over this time interval? It has no acceleration. Its acceler
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The impulse given to a ball with mass of 2.0 kg is 16 N.s. If the ball were already moving at 3.0 m/s, what would the final velocity be? (Remember that v = Vfinal - Vinitial )
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Part b - punnett square punnett squares are convenient ways to represent the types and frequencies of gametes and progeny in experimental crosses. this punnett square shows the results of a yy x yy cr
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Two charged particles exert an electrostatic force of 10 N on each other. What will the magnitude of the electrostatic force be if the distance between the two charges is reduced to one-half of the or
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A hiker uses a large, 10-kg hammer to drive a 0.75-kg stake into the ground. In doing so, he allows the hammer to fall from a height of 1.25 m before striking the stake. If the strike drives the stake
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A silversmith is making some jewelry. Using a torch, he adds 40 kJ of thermal energy to 140 g of silver initially at 68 degrees F. How much of the silver melts?
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Jenny and Betty are having a great time at Busch Gardens riding the Ubanga Banga bumper cars. Jenny, who is traveling southward in her bumper car, aims her car toward Betty, who is traveling northward
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Describe motion and frame of reference Define, describe and solve for speed, velocity and acceleration Define force and friction Identify relationship between force, acceleration and mass Describe and
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Which of the following descriptions correctly describes a way of electrical transfer? 1) Electrons are transferred between a conductor and insulator by means of contact. 2) Protons are transferred bet
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Which statement BEST explains why the specific heat of water is higher than the specific heat of most other substances? A) Due to its polarity and hydrogen bonding water can absorb heat without a sig
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PLEASE HELP !!!!!!!!!!!! One of the moving parts of an engine contains 1.60 kg of aluminum and 0.300 kg of iron. The part can be safely operated at a maximum temperature of 210°C. How much heat is re
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1.) A perfectly conducting plane is located in free space at x = 4, and a uniform infinite line charge of 40 nC/m lies along the line x = 6, y = 3. Let V = 0 at the conducting plane. At P(7,−1, 5) f
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A boat sails along the shore. To an observer, the boat appears to move at a speed of 11 m/s, and a man on the boat walking forward appears to have a speed of 12.4 m/s. How long does it take the man to
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When a driver presses the brake pedal, his car can stop with an acceleration of -5.4 m/s^2. How far will the car travel while coming to a complete stop if its intial speed was 25 m/s?
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Every 18 months, during the Spring tide, the Moon is at its closest distance to the Earth, called its _____. This produces gravitational forces that are very strong and cause extremely high tides.
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Which of these statements is correct for light waves? a.It does not travel through water. b.It does not travel through vacuum. c.It travels fastest through vacuum. d.It travels fastest through water.
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Assume that the energy (electric potential energy) is zero for an electron that is infinitely far from a proton, would the energy be positive or negative for an electron that is bond inside an atom? A
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A big league hitter attacks a fastball the ball has a mass of 0.16 kg it is pitched at 38 m/s after the player hits the ball it is now traveling 44 m/s in the opposite direction the impact lasted 0.00
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