# Math/Physics

215,876 results, page 34
1. ## Physics

1. Given t1/2 to be 0.0137 seconds, how long should it take to reach 87.5% of maximum charge?
2. ## physics

how long does it take a 19kW steam engine to do 6.8x10^7 J of work?
3. ## physics

how can you say that thickness of a material varies as it is a constant value. discuss with in 50 words.
4. ## physics

How high will a 1.85 kg rock go if thrown straight up by someone who expends 80.0 J of energy on it?
5. ## physics

The motion of the truck is described by the equation V = 50t – 5t^2.Find: a.Value from t = 1.5 s to t = 5.0 s. b.Vinst at t = 3.0 s.
6. ## physics

Is the motion of the rider for each angle of inclination uniformly accelerated? Why or why not?
7. ## Physics

What is the latent heat of fusion of ice to water? Help pls!!!!!
8. ## Physics

How do you make a Balloon Car? Is there another way accept just blowing it up and letting it go?
9. ## Physics

Find the gravitational force between the sun and the earth in newtons?
10. ## Physics

How much work does a 50 kg student to climb 3 meters high stairs
11. ## physics

An automobile with a mass of 1400 kg has a speed of 30.0 m/s. What is its kinetic energy
12. ## physics

How will the current in a wire change as the wavelength of light changes? I have no idea how to do this.
13. ## physics

What is an object that is launched into the air and undergoes free fall
14. ## physics

Two point charges, +3.63 µC and -5.95 µC, are separated by 1.18 m. What is the electric potential midway between them?
15. ## Physics

Why is it important to use the maximum force reading from a data collection?
16. ## physics

What is force of attraction between two students of mass 20kg,10meters apart?
17. ## physics

What is force of attraction between two students of mass 20kg,10meters apart?
18. ## Physics

A ball thrown upward at 60.0 m/s has what speed after 5 seconds? What equation do I use?
19. ## physics

how much negative work is done by friction on a 2000-kg car if you slow down from 20 m/s to 10 m/s?
20. ## physics

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

What is the frequency of an electromagnetic wave if it has a wavelength of 1.4 km? The speed of light is 3 × 10 8 m
22. ## Physics

Why do citizens have a responsibility to have some basic understanding of nature's rules?
23. ## Physics

A coil of wire has a resistance of 31.8Ω at 28 °C and 55.6Ω at 53 °C. What is the temperature coefficient of resistivity?
24. ## Physics

If the speed of the wave is 330 per sec calculate the wavelength
25. ## physics

Find the density of a 4.2- kg solid cylinder that is 13 cm tall with a radius of 5.0 cm.
26. ## physics

explain the terms uniform acceleration and average speed.

28. ## Physics

A man walks with an average speed of 1.3 m/s for 45 minutes. How far has he walked?
29. ## AP physics

A car travels 35 km west and 75 km north. what distance did it travel?
30. ## Question

Are there any physics teachers on this site that can help? I've posted many questions on here but none of them get answered.
31. ## physics

What is the height of 3.0 meter ladder leans against a wall 37 degree.
32. ## Physics

Using the Bohr model of hydrogen, find the linear momentum, when n=3.
33. ## Physics

Calculate AMA given μk = 0.019 and an angle of 11 degrees.
34. ## Physics

find gravitational field which produces semicircle. To get the answer g=(1/y^3)
35. ## Physics

At what distance from the earth's surface with a mass of 5.0kg be just 45.0N in weight. HELP
36. ## physics

a car is moving at 40km per hour what is the velocity in meters per second?
37. ## physics

describe the death of a massive star (10 solar masses)
38. ## physics

Show that beta = 3 alpha Why a gas has two heat capacities?
39. ## physics

What emf is required to cause 12 amperes to flow through a resistance of 7.2 ohms?
40. ## Physics

A baseball goes from zero to 37 m/s in 0.177 m/s. What is its average acceleration? Answer in units of m/s^2.
41. ## PHYSICS !!!!!!!!!!!!!!!!!!!!!!!!!!!!

a wave has a frequency of 2 Hz. find its period ? please show work.....
42. ## physics

What is the frictional force between the 5.66 kg mass and the table? Answer in units of N.
43. ## physics

Is a current carrying wire electrically charged? Explain.
44. ## physics

How much work is done on a lawn mower pulled 3.4 m by a force of 54 N at an angle of 10°?
45. ## science physics

When all forces acting on an object are combined together, what's the result known as
46. ## physics

how fast can a 125N force accelarate a12 Kg. object?
47. ## Physics

Calculate the acceleration of a plane when it changes its speed from 0m/s to 250m/s in 12 seconds
48. ## physics

Essay on how accleration due to gravity is used to benefit mankind
49. ## physics

describe the shape of the graph made and discuss its significance.
50. ## physics

. Two positive point charge of 12 μC and 8 μC are 10 cm apart. The work done in bringing them 4 cm closer is,
51. ## physics

how many RPM are required to attain 1g with a radius of 840 feet
52. ## physics

Calculate the angular velocity of the minute hand of a clock.
53. ## Physics

At what DISTANCE from the earth's surface will a mass of 5.0kg be just 45.0N in weight
54. ## physics

the tension in the wire is decreased by 19%. The percentage decrease in the frequency will be?
55. ## physics

44 foot skid from a jeep cherokee, how fast was it traveling.
56. ## physics

A car goes 10 km in 5 minutes when its average velocity is 80 km/hr. true or false
57. ## physics

What.is.the.weight.of.a.150.lb.person.in.newtons?.what.is.his.mass.in.kilograms?
58. ## physics

What,is,the,weight,of,150lb,person,in,newtons?,What,is,his,mass,in,kilograms?
59. ## Physics

Two objects are moving about so that their total momentum is zero. What can be said about their kinetic energy?
60. ## physics

explain how low temperatures are produced using adiabatic demagnetisation
61. ## Physics

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

If a +q charge is placed at d in the x-axis (x_0<d), what happens to the total electric field in 1?
63. ## Physics

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

Compare magnetic and electrostatic forces. In what ways are they a) similar, b) different
65. ## physics

Could someone tell me if this is right? The voltage across a 10-ohm resistor carrying 3 amps must be E=I*R == E=3*10= 30 volts
66. ## Physics

If 7.20 kg of ice at -5.00°C is added to 12.0 kg of water at 30°C, compute the final temperature.
67. ## physics

what will be the young's modulus of copper wire pf length 0.15 m and radius 0.2 cm
68. ## physics

A mass of 10kg moves with a velocity of 4m/s. What is its kinetic enery
69. ## pre-ap physics

how do i find the vertical and horizontal components of velocity?
70. ## pre-ap physics

how do i find the vertical and horizontal components of velocity?
71. ## physics

what is the speed of light moving through a medium of index of refraction 2.45?
72. ## Physics

What is the efficiency of an athlete who consumes 3000kcal of food and does 2.5 x 10*6 J of useful work?
73. ## Physics

An automobile is traveling 50 km/h². It deccerate at 5 m/s², how far will it take to travel after the brake are applied?
74. ## Physics

62m of skid marks and coefficient of .75, how fast was the car going?
75. ## Physics

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

A point charge of -7.9 microcoulomb is at the origin. What is the electric potential at (3.0, - 3.0)?
77. ## physics

A bicycle starts from rest and reaches 6.0 m/s after 4 seconds. What is its acceleration?
78. ## physics

A velocity vector 33{\rm ^{\circ}} below the positive x-axis has a y-component of -14{\rm m/s} .
79. ## Physics

An airplane travels at 880 how long does it take to travel 1.50km
80. ## physics

how is the position of a particle moving along a straight line described by a number
81. ## Science

guys, please give me any ideas for a investigatory project in physics ???
82. ## Physics

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

A baseball goes from zero to 40 m/s in 0.159 s. What is its average acceleration? Answer in units of m/s 2
84. ## physics

If a ball hits a wall going 10 m/s, and bounces off going 7 m/s. What is the coefficient of restitution?
85. ## physics

How does the construction of the astro blaster increase GPE? How does this affect the KE?
86. ## 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?
87. ## Physics

What would be the average velocity of an object falling 1.25m from the rest?
88. ## physics

How much energy is produced when the sun converts one kg of hydrogen into helium?
89. ## College Physics

To move 5.0 C of charge from one electrode to the other, a 12-V battery must do how much work? 60 J 5.0 C 12 J 12 V 60 W
90. ## Physics

How long does it take a vehicle with 40hp to achieve 25m/s(meters per second)?
91. ## Physics

A proton is at the origin and an electron is at the point x = 0.36nm , y= 0.30nm .
92. ## physics

The standard piece of apparatus used to measure distance in the laboratory is what?
93. ## Physics

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

What is the wavelength in metres of an electromagnetic wave with a frequency of 10^14/s?
95. ## physics

Find x- and y-components of the vector \vec {v}=(2.0cm/s , - x-direction).
96. ## general science

in physics the desire of an object to keep doing what it is doing" is temed _______.
97. ## physics

How much work must be done to stop a 1150-kg car traveling at 145 km/h?
98. ## physics

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

how do i find the volume of a block of platinum weighing 45.5 kilos
100. ## physics

What is its speed after 1.87 s if it accelerates uniformly at −4.31 m/s^2? Answer in units of m/s