# Math/Physics

215,876 results, page 27
1. ## physics

Name Two solid materials having very low linear expansivity ?
2. ## Physics

Who was the scientist who first developed the notion of quantization was...? Was it DeBrogile?
3. ## physics

At what altitude above Earth's surface would the gravitational acceleration be 3.0 m/s2?
4. ## physics

why convex lens forms sn inverted image?
5. ## Physics

Calculate (in MeV ) the total binding energy for 40 Ca.
6. ## Physics

how does the M.A. and the I.M.A of the inclined plane vary with the inclination angle?
7. ## physics

How would an astronaut in apparent weightlessness be aware of her mass?
8. ## Physics

Calculate (in MeV ) the total binding energy for 40 Ca.
9. ## physics

What is the value of charge of a body that Carries 20 excess electrons
10. ## physics

What is meant by the term uniform electric field?
11. ## Physics

Who was the scientist that invented the uncertainty principle ? Was it Heisenberg?
12. ## physics

An electron travels 2.7 m in 6.37 × 10−8 s. How fast is it traveling?
13. ## Physics

Is there normal contact force on a frictionless surface?
14. ## physics

Name Two solid materials having very low linear expansivity ?
15. ## physics

how does the M.A. and the I.M.A. of the inclined plane vary with the inclination angle?
16. ## physics

Find the length of a pendulum that oscillates with a frequency of 0.25 Hz
17. ## Physics

By what distance must two charges of +2 C and +10 C be separated so that the repulsive force between them is 3.70*10^10 N?
18. ## Physics

What is the speed of an object in circular motion called?
19. ## Physics

How do you calculate the earth's gravitational pull on astronauts?
20. ## physics

Find a vector of magnitude 18 which is perpendicular to both the vectors 4i^-j^-3^ and -2i^+j^-2k^.
21. ## physics

Determine the kinetic energy of an object 8.0 kg going at a speed of 12.0 m/s.
22. ## Physics

what are 2 examples of elastic collisions not discussed in class
23. ## Physics

How does the amplitude of a matter wave relate to probability?
24. ## physics

Why is voltmeter connected in parallel in electric circuit?
25. ## Physics

What Precaution should be take in static and kinetic friction experiment?
26. ## physics

Carrying out the following mathematical manipulations: (5.78 +/- 0.04)^2 How do you set this problem up?
27. ## physics

What is the longest wavelength that can be heard by a normal ear?
28. ## Physics

How can we find the resultant force if the mass and SPEED are given?? Help me please!!
29. ## physics

Why projectiles launched at complimentary angles have the same range?
30. ## Physics

What is the magnitude of the electric field 0.3 m from a 10-4 C point charge?
31. ## physics

which natural phenomenon can describe light as a wave?
32. ## physics

How to calculate the series AC coupling capacitance? Is there an equation for this? Thank you for any help
33. ## physics

how far will you travel if you maintain a speed of 100m/s for 30s?
34. ## physics

If the borderline is tau equals zero,the eigen values are?
35. ## physics

At what altitude above Earth's surface would the gravitational acceleration be 3.0 m/s2?
36. ## physics

How long does it take the second hand of a clock to move through 4.00 rad?
37. ## physics

if the velocity of a moving object is constant, the acceleration is?
38. ## physics

How do we derive these laws: (most of the time, the numbers are subscript) v'2 = v1 * ( (2 * m) / (m1 + m2) ) + v2 * ( (m2-m1) / (m1+m2) ) & v'1 = v1 * ( (m1-m2) / (m1+m2) ) + v2 * ( (2 * m2) / (m1 + m2) )
39. ## physics

one electron travels twice as fast as another. Which has the longer wavelength?
40. ## physics

the acceleration of an object and the net for acting on it are proportional
41. ## physics

how long does a car with an acceleration of 2.0 m/s^2 take to go from 10m/s to 30m/s?
42. ## physics

how long the ball takes to reach the groud
43. ## Physics

What is the final temperature when 8.1 x 105 J are added to 1.50 kg of ice at 0.0 Â°C?
44. ## physics

what is the formula for finding the decrease in kenetic energy
45. ## Physics HELP

how do u conver 334 (m/s) to acoustic independence unit? kg(m^2s)
46. ## physics

what do you understand by the statement density of gold is 19.6 gm/cm3?
47. ## physics

why do we not feel weightless even though we are in "free fall" toward the sun?
48. ## Physics

what equation would I use to find the magnitude of the mass's velocity?
49. ## Physics

Why does a gun move backward(recoil) when it is fired?
50. ## physics

Which of the following statements is false regarding the ‘drift’ of charge carriers?
51. ## physics

is it possible to launch satelite whìch rotates just above kathmandu?
52. ## Physics

How far does a photon (light) move in one nm in units of feet?
53. ## physics

five factors that affect the rate of diffusion in GASES
54. ## Physics

a water wave has frequency 0.40 Hz and wavelength 2.0m. Its speed is
55. ## physics

why are water tanks broader at the bottom than at the top
56. ## Physics

a water wave has frequency 0.40 Hz and wavelength 2.0m. Its speed is
57. ## Physics

a water wave has frequency 0.40 Hz and wavelength 2.0m. Its speed is
58. ## physics

How can I convert 0.06981 radians/ sec^2 to rpm?
59. ## PHYSICS

FIND THE LENGTH (IN CM) OF A PENDULUM WITH A PERIOD OF 1.20S.
60. ## Physics

what happens to the index refraction of air as temperature increases?
61. ## physics

If you do 100 j work in 50 seconds, then your Power output is
62. ## physics

How are you able to determine if conservation of momentum occurs in each collision?
63. ## Physics

When you look at a distant galaxy through a telescope, how is it that you're looking backward in time?
64. ## Physics

You drop a rock off a bridge. 4. (2 pts) How fast is it going after 2.0 s?
65. ## physics

the frequency of sound wave is 32 Hz .what is the time period?
66. ## physics

DEFINE WITH FORMULA AREA AND VOLUME EXPANSIVITY
67. ## physics

what are the two forces that affect the motion of a child as she comes down a slide?
68. ## physics

DEFINE WITH FORMULA AREA AND VOLUME EXPANSIVITY
69. ## physics

How many coulombs of positive charge are in 3.8 mol of O2 gas?
70. ## Physics

How is Snell's law being used in real life application?
71. ## Physics

How much work must be done on a 500-kg car to accelerate it from 29-km/hr to 112-km/hr?
72. ## physics

Given three vectors a~=Ài~À4j~+2k~ , b~=3i~+2j~À2k~ , c~=2i~À3j~+k~ , calculate a~Á(b~c~)
73. ## Physics

find the direction and magnitude of the vectors : a. A=(25m)x+(-12)y b. B=(2.0)x +(15)y c. A+B
74. ## Physics

Why do objects illuminated by moonlight lack color?
75. ## Physics

Write a Balmer formula and explin each terms
76. ## Physics

Write a Balmer formula and explin each terms
77. ## Physics

Your velocity changes from 50 m/s to the left to 10 m/a to the right in 15s, what is your average acceleration?
78. ## college physics

As wavelengths decreases, energy _____.
79. ## Physics

Is mass the one and only thing that produces a gravitional force???
80. ## physics

A boy walks 13 km in 2.0 h. What is his speed in km/h and m/s. Show work.
81. ## Calc and Physics

Damon and Reiny. Thanks for your quick and thorough responses.
82. ## mathematical physics

Show that : vector del(r^2) = 2vector r
83. ## physics

Before a collision, a 28 kg object is moving at +13 m/s. Find the impulse
84. ## Physics

How to get the equivalent resistance in this figure -----------r2------- | | | Battery. R1 R3 | | | -----------R4------ Values: R1= 90 R2= 50 R3= 40 R4= 20
85. ## Physics

is electric field intensity the same as potential difference?
86. ## physics

write an derival quantity,formulae and unit
87. ## physics

What is the kinetic energy of a 20 kg dog that is running at a speed of 7.3 m/s (about 16 mi/h)?
88. ## Physics

Derive the coefficient of surface tension for water
89. ## physics

In a uniform magnetic field, can an Amperian loop ever have a non-zero value
90. ## Physics

Write the Balmer formular and explain each tearm
91. ## Physics

true or false.Initial velocity is always equal to zero
92. ## Physics

Why solids conduct better heat than liquids and gases ?
93. ## PHYSICS

FIND THE MASS OF A 200 n BABY ELEPHANT
94. ## Physics

What are some scientific questions that can be asked about projectile motion?
95. ## Physics

How far does a runner travel if they maintain a speed of 8.5 m/s for 240 s?
96. ## physics

does sunlight warm your body with light waves yes or no and why
97. ## physics

State the conditions for total internal reflection
98. ## physics

A bus slows down uniformly from 50.9 km/h (14.1 m/s) to 0 km/h in 27 s. How far does it travel before stopping?
99. ## physics

If 53 W of power are exerted and the amount of work done is 7 N-m, how much time did it take?
100. ## Physics

Derive the coefficient of surface tension of mercury