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1. What is the momentum of an object?A. The velocity of the object B. The rate of change in the velocity of an object C. The net
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   2. asked by DL
   3. 31 views
2. An aquarium5 ft long, 2 ft wide, and 3 ft deep is full of water. Find the hydrostatic pressure on the bottom of the aquarium,
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3. what is a newton?A. A force that changes the motion of an object B. A non contact force C. The unit in which force is measured
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   2. asked by DL
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4. (1 point)Astronauts use a tool in space that weighs 5 ounces on Earth. How many grams does the tool weigh? Round your answer to
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5. velocity and force similaritiessimple
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   2. asked by SoleGazelle3623
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6. velocity and force similarities
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   2. asked by SoleGazelle3623
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7. 8 n to the left and 4 n to the right . find the net force
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   2. asked by SoleGazelle3623
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8. 15 n to the right and another 15 n to the right . find the net force
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   2. asked by SoleGazelle3623
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9. Which of the following explains why metals feel cold even when they are at room temperature?Group of answer choices Metal always
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10. 5,000 Joules of heat is added to ice at 273 K. All the heat goes into changing solid ice into liquid water. How much ice is
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11. Which of the following describes conduction?Group of answer choices the sum of all the kinetic energies of all the molecules of
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12. Which of the following describes conduction?
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13. What is the conversion of 6.34 K to °C?
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14. A 15 kg block of brass is heated from 295 K to 350. K. How much heat was absorbed by the brass? The specific heat of brass is
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15. Which of the following best describes the heat of fusion?Group of answer choices the amount of potential energy necessary for a
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16. 800 J of heat are added to a .3 kg block of glass at a temperature of 300 K. How high will the temperature of the glass rise?
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17. t is the same whether measured in Celsius or Kelvin.Group of answer choices True False
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18. Which of the following does NOT affect the amount of a temperature increase?Group of answer choices the size of the object how
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19. Which of the following describes temperature?Group of answer choices the movement of heat from one object to another by
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20. A teacher opens a window on a cold day. Which statement explains why the room starts to feel cooler? (1 point) Responses The
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    2. asked by ...hi....
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21. An object originally at rest is uniformly accelerated to a speed of 8.0 meters per second in 2.0 seconds. What is the
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22. What is the gravitational force of attraction between a planet and a 17-kilogram mass that is freely falling toward the surface
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23. Question 18What is the difference between a vector and a scalar? a A vector is only measured in SI units, where scalars are only
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24. When balanced force acts on an object, the net force that results isa greater in size than both forces combined. b greater in
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25. If you keep a gas's temperature constant, how would you increase the volume of the gas?a You would decrease the temperature b
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26. An object moves a distance of 10 meters in 5 seconds. What is the average speed of the object?a 40 m/s b 2.0 m/s c 0.5 m/s d 50
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27. The graph below represents the relationship between speed and time for a car moving in a straight line.What is the acceleration
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28. An object that is stationary is the result of what kind of force(s)?Responses balanced forces balanced forces - no response
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29. atch each description or picture with its correct term.Column A Column A 1. How far an object has traveled.: How far an object
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30. atch each description or picture with its correct term.Column A Column A 1. How far an object has traveled.: How far an object
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31. A worker uses a pulley system to raise a 550 N carton 8.25 m. A force of 150 N is exerted and the rope is pulled 25 m. What is
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32. If Tom kicks a 0.350 kg soccer ball with 0.90 N of force, what is the acceleration of the ball?F= ma a 0.32 m/s2 b 315 m/s2 c
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33. Use this sentence: On a summer day, the heat of the land heats the air, causing it to rise and spread before cooling over the
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34. A worker uses a pulley system to raise a 550 N carton 8.25 m. A force of 150 N is exerted and the rope is pulled 25 m. What is
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    2. 7 views
35. Which of the following describes velocity?Responses Velocity is the speed of an object in a particular direction. Velocity is
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36. What is the difference between speed and velocity?a Velocity has time. b Velocity has weight. c Velocity has distance. d
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37. Which of the following is NOT a unit of work?Group of answer choices Joule Newton meter All of these answers are units of work.
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38. What type of nuclear radiation is given off in the nuclear reaction below?35/16s arrow blank +35/17 Cl a Alpha radiation b Beta
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39. Suppose a child pulls on the rope of a sled with a force of 75N and at an angle of 20° with the ground. If the sled moves 40 m
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40. A resistance force is 158 N and the AMA is 4. What is the effort force?
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41. An object that is accelerating may be (choose all that apply)a not moving. b changing direction. c slowing down. d traveling at
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42. Completing work from a physics standpoint only requires force.Group of answer choices True False
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43. A 48 kg woman climbs a flight of stairs 12 m high in 30 s. How much power does she use?
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44. Input will exceed the output in real machines because of friction.Group of answer choices True False
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45. if you think of electrical current as a flow of water coming from a hose,which of these is voltage most like?
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    2. asked by miguel
    3. 14 views
46. If a toy rocket is fired straight up into the air, its kinetic energy is zero and its potential energy is at the maximum when it
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47. A 4 kg object is lifted from the floor and placed on a shelf that is 3 m above the floor. What was the work done in lifting the
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48. Which of the following describes the law of conservation of energy?Group of answer choices the entropy of any isolated system
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49. Which of the following is the formula for calculating work?
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50. Which of the following is an example of kinetic energy?Group of answer choices two positive charges held near each other all of
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51. Which of the following is the formula for calculating kinetic energy?
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52. Which of the following best describes a rubber ball hitting a gymnasium wall?Group of answer choices an elastic collision both
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53. Which of the following best describes balls colliding with each other in a Newton’s cradle?Group of answer choices both an
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54. When you hold a textbook and a pencil, why does the textbook feel heavier than the pencil?(1 point)Responses Your hand repels
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55. When you jump, you exert a pushing force against the ground. Gravity pulls you back down. Why can a person jump higher on the
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56. QuestionWhat is the difference between mass and weight?(1 point) Responses Mass is the same everywhere. Weight depends on the
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57. A person throws a ball up into the air, and the ball falls back toward Earth. At which point would the kinetic energy be the
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58. as a longitudinal wave travels through a medium the particles of the medium move
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59. A model shows a machine that works using electrical fields. What would this machine need for the electrical field to function
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60. In models of magnetic and electric fields, why are field vectors depicted by arrows?(1 point)Responses because they represent
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61. Question 1What type of nuclear radiation is given off in the nuclear reaction below? a Gamma radiation b Beta radiation c Alpha
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62. 21. If the object starts moving from point A and continues along a straight path from point A to point D, which of the following
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63. In a circuit with two (12 ohms and 4 ohms) resistors connected in parallel and a voltage of 12V, what proportion of the current
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64. Rearrange the formula $F=ma$ using m as the quantity of interests
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65. 21. If the object starts moving from point A and continues along a straight path from point A to point D, which of the following
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66. Which subatomic particle orbits the nucleus?the electron the neutron
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67. 21. If the object starts moving from point A and continues along a straight path from point A to point D, which of the following
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68. What is the magnitude of a force?(1 point)Responses the amount of force the amount of force the type of force the type of force
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    2. asked by annoymous
    3. 14 views
69. 16. If Tom kicks a 0.350 kg soccer ball with 0.90 N of force, what is the acceleration of the ball?F= ma a 388.9 m/s2 b 0.003
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70. Why does heat always move from hotter areas to cooler ones?A. The particles are much larger in size. B. The particles align
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71. Which of the following statements are true about thermal energy? Select all that apply.A. A plastic ruler transfers energy at
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72. Record a scientific summary using the following words: particles, transfer, conduction, equilibrium, temperature.
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73. A light yellow block and a dark blue box are next to each other in full sunlight on a summer day.Which statement accurately
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74. Water with a density of 1 000 kg/m³ flows into the smaller diameter (0,15 m) end ofa 10,5 m tapered pipe, with a velocity of 20
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    2. asked by Adivhaho Muremi
    3. 12 views
75. 9. Amelia swims at an average speed of 8 meters per second, how long will it take her to complete a race of 600 meters length?a
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76. A ball is thrown directly upward from the ground with an initial velocity of 4.8 ft./sec. Represent the height of the ball from
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77. Which argument best explains the charge of an atomic nucleus?An atomic nucleus is positively charged because it is composed of
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78. This chart show the amount of radioactivity measured from three unknown isotopes.Which statement describes each of the isotopes?
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79. Students are completing a table about a particular subatomic particle that helps make up an atom.A 3-column table with 2 rows.
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80. How does Rutherford’s model of the atom compare with Thomson’s model?They both describe atoms as small, indivisible spheres.
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81. 3. A runner starts at Point B and runs to point A then to point D and finally stops at point C. The runner's total distance was
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82. Which scientist believed that the probable, not exact, location of the electrons of an atom can be determined by using
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83. Particle A has very little mass in comparison to Particle B. Both particles are in the same atom. Which is the best conclusion
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84. Which describes radioactive decay of a substance?More of the radioactivity is lost during the first half-life than in later
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85. Use the position-time graphs for object C and object D to answer the question. Does either object have a constant velocity? (1
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86. what are some types of radiation
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87. A mother and her small child are standing in an inflatable bouncy house on opposite sides. The mother jumps up and comes back
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88. Two objects are moving at the same speed. Which one has more kinetic energy?(1 point) Responses the object with the greater
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89. Match the appropriate word to the letter in the sentence.Small _____(A)_____ motors can also require hundreds of milliamps.
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90. After energetic particles on the surface of the liquid escape into the air, the liquid has less energy, making it cooler. What
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91. Which unit is used to measure force?Kilogram, joule, Newton, or watt
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    2. asked by Landon
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92. A radioactive substance decays at a rate of 6% each year. If the initial amount of the substance was 600 grams, create an
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93. he table represents the speed of a car in a northern direction over several seconds.A 2-column table with 5 rows. The first
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94. Why does the temperature of ice remain constant at 0°C during the melting process? (1 point) Responses The thermal energy is
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    2. asked by woosan♥
    3. 12 views
95. A student wants to determine the effect of mass on kinetic energy. She will drop two balls of the same size into a pool of
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    2. asked by Bot GP 10.13
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96. John has to build a project that generates a lot of heat. He would want to use thermal insulators in the project because
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    2. asked by woosan♥
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97. Two students drop an object into sand from a height of 1.5 meters. They record the depth of the hole made in the sand by each
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    2. asked by Bot GP 10.13
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98. The formula for gravitational force is F=G m^1m^2/r/2 where G is the gravitational constant and R is the distance between the
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99. Surface waves cause the most damage, but they are ironically called _____.Loose waves Light waves Lemon waves Love waves
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100. A person throws a ball up into the air. At which point in its path will the ball have the greatest potential energy?(1 point)
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     2. asked by Bot GP 10.13
     3. 13 views