# physics( i have no idea how to go about gettign th

79,978 results, page 99

1. ### physics

what would be the significance of the photoelectric effect graph if it a) passed through the origin b) had a positive y intercept
2. ### Physics

If you are driving 100km/h along a straight road and you look to the side for 1.9s , how far do you travel during this inattentive period?
3. ### physics

If you are driving 100 along a straight road and you look to the side for 1.9 , how far do you travel during this inattentive period?
4. ### Physics

a westward force of 20 N acts on a 2.0 kg object moving eastward at 60 m/s for 2.0 s. What is the resulting velocity?
5. ### physics

How close must two electrons be if the electric force between them is equal to the weight of either at the earth's surface?
6. ### physics

2) The weight of tank is 50 000 kg, area of his tracks is 5 m2. What pressure acts on the ground?

what are three possible thicknesses that a soap film should be to transmit yellow light ? (Lambda=590nm)
8. ### PHYSICS/MATH

What is your average power if you lift a 33.8 kg box at a constant speed to a height of 3.27 m in 6.10 s?
9. ### Physics

A steel guitar string is 73 cm long and 0.15 mm in diameter. If it's under tension of 1.5kN, how much is it stretched?
10. ### physics

How much force is needed to accelerate a 50kg rider and his 250kg motorcycle at 4m/s27
11. ### physics

How long would it take for a stone to fall 250m traveling at a speed of 10m/s squared?
12. ### physics

If a car rolls gently(vo=0) off a vertical cliff, how long does it take to reach 85km/h?
13. ### Physics 30

If a truck moving at 30km/hr accelerates at 2.5m/s^2 to 50 km/hr, what time (in sec) does it take? a. 2.22s b. 5.56s c. 8 s d. 28.8s
14. ### physics

wally holds a pillow over his head for an hour does he do any work ? if not y? what energey changes is accouring?
15. ### physics

If a man weighs 820N on d earth what would be on Jupiter, where the acceleration due to gravity is 25.9m/s
16. ### Physics help!!!

What potential difference is required in an electron microscope to give electrons a wavelength of 0.05 nm ?
17. ### physics

Is it possible for a frictional force to increase the mechanical energy of a system? If so, give examples.
18. ### PHYSICS

What is the potential energy of a 150 kg diver standing on a diving board that is 10 m high?
19. ### Physics

Why is parallel circuit brighter compared to series? ( Only one bulb is present in both circuits) Thanks :)
20. ### physics

Three charges of 5 x 10^(-6) C are placed on the vertices of an equilateral triangle of 10cm. Calculate force on each charge.
21. ### physics

At what height above Earth's surface is the gravitational acceleration reduced from its sea-level value by 0.60%?
22. ### Physics

Two positive charge of 12cand 8c are 10cm apart each other. The work done in bringing them 4cm closer is
23. ### Physics 11

A girl stands 2.5 m infront of a plane mirror. If she sees someone else 2.0 m behind her, how far is she from the image of that person?
24. ### Physics

If two forces act at a point making an acute angle between them, find the resultant.
25. ### Physics

Sodium has bcc packing. If a distance between two nearest atoms is 3.7 A* then what is the lattice parameter?
26. ### physics

two point charge q1=50c , q2=10c are lactated at (-1,1,-3)m, and (3,1,0)m, respectivly. Find the force on q1.?
27. ### physics

a baseboard heater draws a current of 10.0A. How much charge passes through it in a time of 30 min?
28. ### physics

How much potential energy does a 60kg skater have before she starts her ride, 12m above the ground?
29. ### Health Physics

The human body is 20-25 percent efficient. In what form is energy lost?
30. ### physics

a gun shoots a potato from a height of 6 feet. how long does it take to hit the ground.
31. ### Physics

Using volume of a sphere, calculate the average density of Saturn (radius = 60,268 km).
32. ### physics

the speed of a bullet of mass is 40gram is 216km/h what is the kinetic energy in joule
33. ### physics

A constant net force of 1500 N gives a toy rocket an acceleration of 2.5 m/s2. what is the mass in kg?
34. ### physics

A meteoroid is speeding through the atmosphere, traveling east at 15.5 km/s while descending at a rate of 10.6 km/s. What is its speed, in km/s?
35. ### Physics

What is the typical wavelength of an X-ray ? I searched google and I couldn't find it. If you know the answer I'd appreciate it .
36. ### physics

the value of acceleration due to gravity is not equal to 10m,give reasons to support
37. ### Physics

Air in a balloon does 50 J of work while absorbing 70 J of heat.What is its change in internal energy?
38. ### AP Physics

If you are driving 116 km/h along a straight road and you look to the side for 1.0 s, how far do you travel during this inattentive period?
39. ### physics

How much heat in KJ is needed to change 3.0 kg of ice at -10C into (superheated) steam at +150C ?
40. ### physics

Consider the equation -mv0 +3mv0 = 4mvf. Where m and v0 are constants, Solve for vf. Simplify answer.
41. ### physics

If I have 1.5 moles of an ideal gas at a pressure of 3 atmospheres and a volume of 7 liters, what is the temperature?
42. ### physics

a polar satellite is launched at 850 km above Earth .find its orbital speed.
43. ### physics

A tank has a length of 0.18 m, a width of 0.78 m, and a height of 0.44 m. If it is filled with water, how many kilograms does it weigh?
44. ### physics

determine the speed of a mass (1.00kg) after it has fallen a vertical distance of 12.5 meters
45. ### physics

If a coffee can has a radius of 63.0 cm and a height of 15.8 cm find its volume round to neaerest cm3
46. ### Physics

Given that q = +17 mu C and d = 14 cm, find the magnitude of the net electrostatic force exerted on the point charge q2.
47. ### Physics

If 2.0 J of work is done in raising a 280g apple, how far is it lifted? I would say F= 2.0/180 but that doesn't really sound right...
48. ### physics

A tank has a length of 0.18 m, a width of 0.78 m, and a height of 0.44 m. If it is filled with water, how many kilograms does it weigh?
49. ### physics

How center mass affects an arrows distance traveled (include source)
50. ### physics

State how the centripetal force is provided in the case of a satelite orbiting the earth
51. ### physics

Two 2.5 kg physical science textbooks on a bookshelf are 0.25 m apart. What is the magnitude of the gravitational attraction between the books?
52. ### physics

If you tried to smuggle gold bricks by filling your backpack, whose dimensions are 63 cm*29 cm*20cm, what would its mass be?
53. ### physics relativity

How fast would you need to be travelling relative to an observer in order for them to see a 15% increase in your mass?
54. ### Physics

How fast must a plane fly at a latitude of 41.9° so that the sun stands still relative to the passengers?
55. ### Physics

On a dt graph if there is a curve from 1 decreasing to 1.2 in an interval does is the velocity and acceleration + or 9? And is it slowing down or speeding up or neither?
56. ### physics

how much energy is stored in a pinball machine spring (constant=750N/m) that is compressed 3 cm?
57. ### physics

Two 4.3 kg physical science textbooks on a bookshelf are 0.25 m apart. What is the magnitude of the gravitational attraction between the books
58. ### physics

How much current flows through two resistors with resistances of 10 Ω and 20 Ω that are connected in series and to a 10 V power supply?
59. ### physics

Calculate the total force of the atmosphere acting on the top of a table that measures 1.9 m by 2.3 m.
60. ### Physics

a 50 g marble is released from a height 1 m above the floor. Calculate its momentum just before hitting the ground
61. ### PHYSICS!!

free body diagram of a 4 kg bucket accelerating downward 2 meters per second squared
62. ### physics

Find the final speed of the train assuming no friction. Answer in units of m/s
63. ### physics

A tuning fork produces a wave at 280 Hz and with a wavelength of 1.5 m. Calculate its velocity.
64. ### physics

Why does cross sectional area of a liquid stream reduces while falling vertically??
65. ### Physics

A 700 kg plane is traveling at 90 m/s at an altitude of 1500 m. What is the total mechanical energy?
66. ### Physics

(a) Calculate the speed of a proton after it accelerates from rest through a potential difference of 285 V.
67. ### physics

At the end of a race a runner decelerates from a velocity of 7.00 m/s at a rate of 0.400 m/s^2. (a) How far does she travel in the next 15.0 s
68. ### Physics

Find the change in the force of gravity between two planets when the distance between them is decreased by a factor of 4.7
69. ### physics

What are the factors that affect the quantity of heat needed to raise the temperature of a substance?
70. ### physics

Calculate the net force needed to give an acceleration of 0,5m/s to a trolley with a mass of 1,5 kg
71. ### physics

5. What is the electric potential at the center of the square shown in the figure below? Assume that q1 = 1 x 10-8 C, q2 = -2 x 10-8 C, q3 = 3 x 10-8 C, q4 = 2 x 10-8 C and d = 1 meter.
72. ### Physics

Aircraft with acceration of magnitude of 42.5 m/s. If starting from rest how long will it take to travel a 2.6 km runway?
73. ### Physics

In ten to fifteen pages, write the applications and effects of solid expansion
74. ### physics

Devise a method for measuring the coefficient of friction between two surfaces using an inclined plane
75. ### Physics

Calculate the total energy of 4.0 kg object moving horizontally at 20 m/s 50 meters above the surface. Please help me!!!!!
76. ### physics

When sand is poured on a rotating disc what happen to its angular velocity ? explain
77. ### physics

a fire hose held near the ground shoots water at a speed of 6.4m/s, at what angle should
78. ### physics

how can we derive the work-energy theorem form Newton's second law of motion?
79. ### Physics

.17 kg hockey puck initial velocity 21 m/s stops 62m away. what is coefficient of friction?
80. ### physics

What is the electric potential at the center of the square shown in the figure below? Assume that q1 = 1 x 10-8 C, q2 = -2 x 10-8 C, q3 = 3 x 10-8 C, q4 = 2 x 10-8 C and d = 1 meter.
81. ### physics

A fisherman's scale stretches 3.5 cm when a 2.1 kg fish hangs from it. What is the spring stiffness constant?
82. ### physics

A man moves along a semi-circle. What is the relation between distance covered (S) by him and his displacement (D)? S = D S > D S < D
83. ### Physics

A bike starts from rest and accelerates to 20 m/s over a period of 6 seconds. What is the acceleration of the car?
84. ### PHYSICS

a 1500kg sports car accelerates from 0 to 30 m/s in 8 seconds. Whaat is the power of its engine? Please help
85. ### Physics

what is your power output if you climb a 2m ladder in 10 seconds? suppose your height is 565N.
86. ### Physics

a 100 N chandelier hangs from the ceiling on 8 chains. What is the tension force on each chain?
87. ### Physics..PLZ HELP!

The magnitude of the magnetic field 8.0 cm from a straight wire carrying a current of 6.0 A is A) 3.0 ƒÎ ~ T. B) 1.5 ~ T. C) 1.5 ~ T. D) 3.0 ~ T. E) 3.0 ~ T.
88. ### physics

a pendulum swing with a speed of 1.5 m/s at its lowest point. How high will it rise before it stops
89. ### physics

A 32 kg girl runs up a flight of stairs that is 30 m high. How much work does this require? Not sure how to even start
90. ### physics

how much work is done by the upward force of your head on a 50 N rock that you carry horizontally across a 10 m room?
91. ### physics

how high must a 2 kg basketball be thrown so that the top of its arc, it has a potential energy of 160J?
92. ### Physics

How many electrons must be removed from an electrically neutral silver dollar to give it a charge of +2.0 ìC?
93. ### Physics

What is the circular force of a 150 g yoyo swung around on a 1.00 m string at a velocity of 5.0 m/s (in Newtons)?
94. ### physics

--------------------------------------- A rugby player of mass 82kg is running at 6.0m/s. How much energy will be needed to stop him? ---------------------------------------
95. ### Physics

A ball travels 200cm in the first 2sec and 220cmin the next 5sec. Find the velocity at 7s
96. ### physics

determine the kinetic energy of a boy mass 40kg running with velocity of 3m/s
97. ### Physical Conceptual Science

Trucks often have signs on the back that say, “If you can’t see my mirrors, I can’t see you.” Explain the physics.
98. ### physics

How many electrons must be removed from an electrically neutral silver dollar to give it a charge of +2.1 µC?
99. ### physics

If a material contains three elements but not joined in a fixed proportion, it is a(an) A. mixture. B. compound. C. atom. D. none of the above D?
100. ### physics

What quantity of energy is represented by 250cm^3 of a gas 100N.m^2 when the temperature is kept constant