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

80,325 results, page 86
1. ## Quick physics help

you hear a thunder 4 seconds after you see the lightning. how far away is the storm?
2. ## Honors Physics

How do you determine the mass of fuel in a semi truck?
3. ## Physics

Can someone please tell me how to calculate the percent of error for a set of data points? thanks so much!
4. ## physics

Which of these is not an application of electromagnetic induction? A) Radio.B) None of these.C) Sound.D) Light.E) All of these are
5. ## physics

A car has a uniform velocity of 108km/h. How far does it travel in 1/2 min
6. ## physics

what is the speed of 1kg object when the kinetic energy is 1 joule
7. ## PHYSICS

Can someone please tell me how to calculate the percent of error for a set of data points? thanks so much!
8. ## physics

when a car drives off a cliff why does it ratate forward as it falls?
9. ## physics

An astronaut shoots you in space given that the bullet is weightless, could it injure you?

im not procrastinating i really don't understand it. im not asking for the answers im just asking for a little more help??
11. ## physics

What is the apparent weight of a 55 kg person in an elevator accelerating downward at 2.2 m/s2?
12. ## Physics

By what distance must two charges of +2 C and +4 C be separated so that the repulsive force between them is 4.10 1010 N?
13. ## Physics

What is the electric force of attraction between charges of 3 C and -4 C separated by a distance of 2 m?
14. ## physics

pls show answers and work with the questions i have posted.
15. ## physics

What is the energy of a photon of yellow light with a frequency of 5.14 Ã— 1014 Hz?

17. ## Physics

Which object had more potential energy when it was lifted to a distance of 10 meters?
18. ## Physics

Give 3 examples of applications of the conservation of angular momentum.
19. ## college physics (bob again

would 2.68 meters be a reasonable height for the cliff?
20. ## physics

if the earth exerts a force 300n how much does the body weigh?
21. ## physics

Complete the following nuclear reaction: ^16,v8 O + ^4, v2 He → ________ + ^19, v10 Ne 1p 1n 2H 3H
22. ## Physics

Can someone please tell me how to calculate the percent of error for a set of data points? thanks so much!
23. ## physics

How much potential energy does a 20-kg barrel have when it is in the truck whose floor is 5.0 m above the ground?
24. ## physics

of the following the largest quantity is a] 0.047 cm b] 47x10-4 cm c] 4.7x 10-4 cm d] 0.00047x10^2 cm e] 0.000047x10^6 cm
25. ## Physics

If you had to straighten out a refracted ray that went through a lens with a focal length of +15 cm, what could you do?
26. ## physics

derive the formula v0=sqrt((deltaX)squared)*g)/2*deltaY
27. ## physics

Every few hundred years most of the planets line up on the same side of the Sun
28. ## physics

Two charged spheres are 5.25 apart. They are moved, and the force on each of them is found to have been tripled. how far apart are they now?
29. ## physics

Two charged spheres are 5.25 apart. They are moved, and the force on each of them is found to have been tripled. how far apart are they now?
30. ## physics

two forces 5N and 7N act on an object respectively.When will the resultant of the two vectors be at a maximum?
31. ## physics

how much power does a 63kg athlete develops as he climbs a 5.2m rope in 3.5 second
32. ## Physics

A car accelerates from rest to 90km/h in 10 seconds.What is its acceleration in m/s2?
33. ## physics

This isn't so much a question, but a query: What does this mean? K.E. = 1/2 mv2 I can do the homework on my own if someone lets me know. Thanks.
34. ## physics

3 factors that we must always give when expressing a force vector quantity
35. ## physics

A mass accelerate uniformly when the resultant force acting on it is what?
36. ## physics

3 factors that we must always give when expressing a force vector quantity
37. ## physics

3 factors that we must always give when expressing a force vector quantity
38. ## Physics

Explain why a balloon expands when heated and contracts when cooled.
39. ## Physics

Write 2.38x10 to the 6th power in standard notation
40. ## Physics

What is the power output of an engine the does 60,000J of work in 10s?
41. ## physics

How much time does it take a pulse of light to travel through 180$${\rm {\rm m}}$$ of water?
42. ## Physics

How do the initial and final horizontal velocities of a projectile compare?
43. ## Physics

How do you determine the average velocity on a position-time graph?
44. ## physics

Why does a 10 gram bullet have more momentum traveling at 200m/s than at 20m/s?

A 0.504 m length of conducting wire carrying a current of 62.1 A is?
46. ## physics

A plane cruising at 247 m/s accelerates at 28 m/s 2 for 8.7 s.How far will it have traveled in that time?
47. ## physics

in electrolysis how is conductivity affected by the molecular mass of the solution
48. ## physics-14

If room temperature is 70 degrees farenheit,what is kelvin?____
49. ## Physics

Two spheres with masses of 5.00 g and 10. kg respectively are .500 m apart. calculate the force of attraction between them.
50. ## physics

how much work is being done if a 100 N box is lifted 3 meters off the ground???
51. ## Physics

During the pre-industrial era, what were the Carbon Dioxide levels like?
52. ## Physics

I have to check that Maxwell's equations are dimensionally correct. How the hell can I do this? Thank you very much.
53. ## physics

Which of the following properties of a ball is conserved as it falls freely in a vacuum?
54. ## Physics 30

Vectors A) 3.5 cm North B) 4.2 cm West Algebraically subtract B from A(B-A) Whaaaa? Please help
55. ## physics

what happens to the force of frictionif the coefficient of friction was reduced by one thrid
56. ## physics

How many joules of potential energy does a 1.5 kg book gain when it is elevated 4.2 m?
57. ## Physics

In a calorimeter can whose behaves thermally is.if it were equivalent with 40g of water
58. ## gr.10 physics

could someone please help me with this? Rearrange and simplify for r when A=3.14r^2 by the way, 3.14 is supposed to be pi, but i don't know how to write it...
59. ## physics

what is the power if it takes 11s to drag the sled 80m?
60. ## Physics

The sum of 5.2713x10^3 + 6.54014x10^3 expressed to 4 significant figures would be?
61. ## physics

The maximum displacement of a vibrating body on either side of its mean position is known as its
62. ## Physics

If radius = 1.25 when i am swinging a bucket around and around what is the slowest possible speed i can go without it spilling?
63. ## Physics

what maximizes our ability to recover elastic potential energy?

65. ## Physics

What does wave interference have to do with the electron energy levels in an atom?
66. ## physics

if you exert a force of 500 N to walk 4 m up a flight of stairs in 4 s, how much
67. ## physics

How much force is needed to accelerate a 50-kg rider and her 250-kg motorcycle at 5 m/s2?
68. ## physics- urgent

an object travels at a rate of 48.5 km/sec. how many cm/min would that be
69. ## Physics

An airplane normally flies at 280 km/h. What is its airspeed if it experiences 80 km/hr headwind?
70. ## physics

a 20.0L sample of hydrogen gas has a mass of 1.80g. What will its density be in g/ml?
71. ## Physics

An airplane normally flies at 280 km/h. What is its airspeed if it experiences 80 km/hr headwind?
72. ## Physics

When an object is immersed in a fluid describe the buoyant force?
73. ## physics

a skydiver has amass of 140 kg.at what speed will she have a momentum of 10,000 kg m/s?
74. ## Physics

How does the index of refraction relate to the speed of light in a substance?
75. ## Physics

If a clock says 10:30 am and the second hand rotates 960 degrees what time would it be?
76. ## physics

Find the relation between phase difference and path dofferense
77. ## Physics

Determine the relative density of a regular shaped object
78. ## Physics

The result of 1.51751x10^4 divided by 6.451x10^3 to 2 significant figures is?
79. ## Physics

What is the work done by a crane that lifts a 1,200kg object 30m?
80. ## physics

Pls what is the specific of water? Is think is 4200 but my mates are saying it's 4180
81. ## Physics

Two vector of 5N and 6N flow they oriented to get the resultant of 7N,9N?( please solve this question)
82. ## Physics

Why do we see more mirages in southern states and in the summer than at other times or places
83. ## physics

How much work will a net force of 56·N west do on the cart as it moves 1·m?
84. ## PHYSICS

As the distance of the object from the lens increases,what happens to the image size?
85. ## physics

Is there any investigations of forced oscillations of the spring-mass system?
86. ## science

How do the principles of physics and chemistry both come into play when developing new materials?
87. ## physics

How much work is required to lift a 5.2-kg concrete block to a height of 3.1 m?
88. ## Physics

what is the kinetic energy in joules of a 1040-kg automobile traveling at 81 km/h ?
89. ## physics

How much work does gravity do on a 0.120-kg ball falling from a height of 17.0 m?
90. ## physics

How much work must be done to stop a 1070 kg car traveling at 111 km/h?
91. ## Physics

calculate the force between two identical charges of 1.0 x 10 exp -9 C separated by 1.0 Cm
92. ## physics

all electric charges are multiples of the charge on an electron, or atom?
93. ## modern physics

Calculate the commutator [ p, e^ik.x ] where the function e^ik.x may be expanded as: e^ik.x = ∑infinite,n=0 (ik.x^n/n!)
94. ## science

How do the principles of physics and chemistry both come into play when developing new materials
95. ## Physics

What is the peak wavelength and observed color of a 50,000 K star?
96. ## Physics

How does the length, thickness, and temperature of a wire effect the resistance?
97. ## physics

When a nucleus emits a beta particle, it's atomic number is ?
98. ## Physics

How come heat engines are more efficient when run at high temperatures?
99. ## Physics

Explain fully one pro and one con of nuclear energ
100. ## Physics

If your car accelerates from rest at a steady rate of 4 m/s2, how soon will it reach 84 km/h