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

79,978 results, page 91

1. ### Physics

how many coulombs must be on one object for it to be repelled with a force of 6.0 N by a second charge of 2.0uC at a distance of 1.0 m?
2. ### physics

At what distance is the electrostatic force between two protons equal to the weight of one proton?
3. ### physics

a free body diagram of a boy sliding down a hill on a sled
4. ### Physics

For a pendulum that completes fifteen complete swings in 34.8 seconds, how much is the frequency?
5. ### physics

: what is the density of an object with the mass 60g and volume 25cm cube
6. ### physics

Which has the greater acceleration, a car that increases its speed from 50 to 62 km/h, or a bike that goes from 0 to 12 km/h in the same time?
7. ### physics

Calculate the momentum of a 100 kg object moving with velocity 10m/s
8. ### physics

Calculate the momentum of a 100 kg object moving with velocity 10m/s
9. ### physics

Despite of many attempts to introduce a universal language, the effort has met with very little success.
10. ### physics

A particle at rest undergoes an acceleration of 2.1 m/s2 to the right and 5 m/s2 up. a) What is its speed after 7.9 s? Answer in units of m/s.
11. ### physics

The third longest wavelength in the Paschen series in hydrogen corresponds to what transitions?
12. ### physics

The energy of the em waves is of the order of 15 kev.to which part of the spectrum does it belong?
13. ### Physics Class

The equation describing the motion of an object is y=0.8cos(4.2t+0.32). What is its period?
14. ### physics

if it costs 4.5 to 7.5 cents per kilowatt-hour (wind energy) what is the price per kW?
15. ### Derivation of Physics Equation

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) )
16. ### physics

show that in the limit that the radius of the sphere goes to zero to kept the magnetic moment constant
17. ### Physics

What happens to the focal length of a converging lens as the radius of curvature is increased?
18. ### physics for Mr. Pursley

I see 18% Nickel Alloy A (under pure silver) is listed as 2.874 x 10^-7 Is this what I should use?
19. ### Physics

what is the schwarzschild radius of a black hole with a mass of 1.68x10^43kg
20. ### Physics

Make a position vs time graph of the following scenario: an object moves at 5.0 m/s for 4.0 s then at -2.0 m/s for 3.0 s.
21. ### PHYSICS

A hypothetical planet has a mass 1.49 times that of Earth, but the same radius. What is g near its surface?
22. ### physics

what is your final velocity after 680 meters if you start out at 90km/hr and acceleration is 9 m/s
23. ### physics

What happens when you walk across a carpet and receive a shock when you touch a metal object.
24. ### physics

a body moving at 40 m/s accelerates at the rate of 8m/s^2. what is the distance it transverses in 15 seconds?
25. ### Physics

Find the centripetal acceleration of a car that rounds an 80 m radius curve at 10 m/s.
26. ### Physics

As the temperature of an object becomes higher, what happens to the average wavelength of the radiation it emits?
27. ### physics

The sensitivity of a galvanometer of resistance 990ohm is increased by 10 times.The shunt used is??
28. ### physics

Cylinder water tank 80cms height 1000liters what is its diameter
29. ### physics

find the acceleration produced by a net force of 300.0 N on a mass of 0.75 kg.
30. ### physics

Evaluate the Rydberg constant R using Bohr theory and show that its value is R = 1.0974x10-1.
31. ### Physics

In the photoelectric effect, what determines the kinetic energy of the ejected electrons?
32. ### physics

10 kg of ice at -4 C is dropped into 15.1 kg of water at 36 C. What is the final temperature of the mixture? T_final =
33. ### physics

if a force of 3000 n can move a crate at an acceleration of 10 m/s2, what is the mass of the object
34. ### physics

a car moving through road what is the direction of force and surface of acting
35. ### Physics

Resolve a force of 7.5N acting at an angle 40 to its horizontal an vertical components.
36. ### physics

determine the pressure of a 20 lb force is applied to an area of 10 inch squared
37. ### physics

determine the pressure of a 20 lb force is applied to an area of 10 inch squared
38. ### physics

if a swimmer swims 85.4 yards in five minutes, how many meters will he swim in 70.0 seconds?
39. ### physics

what is the speed of a sound wave if its frequency s 160 hertz and its wavelength is 2.2m?
40. ### Physics

A vibrating point on a spring travels 60 mm during three cycles. What is the amplitude of the vibration?
41. ### physics

what impulse is needed to slow a 45kg object from 15m/s to 12m/s?
42. ### help physics

If you have a pair of vernier callipers which have divisions of 0.05mm what would the absolute error be?
43. ### Physics

Find the length of a bridge if it is known that the steel in the roadbed expands by 0.52 m when the temperature changes from +2 to +30°C.
44. ### physics 1

need wieght in lb.s an apple weighs 1N mass in kilograms give weight in lb.s
45. ### physics

what is the displacement of the ball? i.imgur. com/8ljWh . png i don't know calculus!
46. ### physics

How much heat energy must be added to a 3.0 cm × 3.0 cm × 3.0 cm block of aluminum to raise its temperature from -50∘C to 50∘C?
47. ### physics

a 8.0 kg object undergoes an acceleration of 2.2 m/s squared.what is the resulting force acting on it?
48. ### Physics

In the olden days Christmas lights were wired in series. Why was this not very festive?
49. ### PHYSICS

WHAT IS THE VELOCITY OF A CAR THAT TRAVELS AROUND A TRACK THAT HAS A RADIUS OF 15M IN 2 MINUTES
50. ### Physics

I am not getting the difference between distance and displacement.... without using the words scalar and vector quantity, of course, i know what they mean but still i need help with this... so please help!!!
51. ### physics

'perpetual motion' is ruled out of the realm of possibility because of which law of thermodynamics?
52. ### active physics

a 25 mewton force pushes against a 5 kg. mass. what is the acceleration??? what formula do i use?? F=ma
53. ### physics

find the acceleration of a bicycle slowing fron 3m/s to a stop in 5 seconds?
54. ### physics

how do you compare mass and weight on the earth, moon, and outer space?
55. ### Physics

Find, to 3 decimal place, the frequency of the hour hand of a clock
56. ### Physics

What term describes a force that causes an object to move in a circular path?
57. ### Physics

The acceleration of a certain rocket is given by ax=bt where b is positive constant, find the position and velocity at t=5.0s if Xo=0 and Vo=0 and b=3.0m/s^3?
58. ### physics

The acceleration of a certain rocket is given by a=bt where b is positive cnstant, find the position function Xo and Vo at t=o?
59. ### Physics

what is the northward and eastward components of a 550 kph velocity of an airplane going NE?
60. ### physics

75 kg block is dropped from a height of 6 m. How much kinetic energy does it have when it has fallen halfway?
61. ### So what about this one bob? Physics

Which of the following is closer to a guess? hypothesis<<<<< law question theory
62. ### Physics

What can we say about the force of an object when the mass increases and acceleration remains constant?
63. ### Physics

Compute the k.e in joule of a 500g riffle bullet traveling at 300m/s
64. ### physics 102

What are the wavelengths of electromagnetic wave in free space that have the following frequencies? (a) 3.00 10^19 Hz pm (b) 7.50 10^9 Hz cm
65. ### Physics

Why does tension in a rope increase as the rotational speed of a ball increases?
66. ### Physics

Charges q1 and q2 lie on the x-axis at points x= -a and x= +a respectively a) how must must q1 and q2 be related for the net force +Q placed at x= +a/2 to be zero?
67. ### Physics

What is the magnitude of the momentum of a 10,000-kg truck whose speed is 12.0 m/s? What is the kinetic energy?
68. ### physics

explain why air moving over an object can increase its rate of cooling.
69. ### Humanities Core

In what ways can we say that quantum physics both is and is not classical science? it has something to do with galileo but im not sure....
70. ### physics

how long will it take for an apple falling from a 29.4m tall tree to hit the ground? how
71. ### physics

A storage tank of negligible mass and 30 m high is filled with gasoline
72. ### Physics

According to special relativity, the momentum (mv) of an object at relativistic speed is actually: more, less or no different than if it were at rest
73. ### physics

How does pressure work as a restoring force to create a sound wave?
74. ### physics

if a plane is flying 235 km/h and encounters west wind at 80 km/hr. What's its new velocity?
75. ### Physics

If you combine 34 kg of ice at 0°C with 80 kg of steam at 100°C, what is the final temperature of the system? °C
76. ### physics

A vector has a magnitude of 18.0 cm and makes an angle of 103.0° with the positive x-axis.
77. ### physics

where would the image of a 4.0 cm tall object that is 12 cm in front of a flat mirror be located?
78. ### Physics

How many calories of heat are gained to turn 10 grams of ice at 0 C into water at 0 C?
79. ### physics

Suppose a rock fell off a cliff. After 5 seconds, its speed well be 100 m/s
80. ### Physics

What equation gives the velocity as a function of time for an object with constant acceleration?
81. ### physics

What Net Force is necessary to give a 2.0 kg mass initially at rest an acceleration of 5.0 m/s^2?
82. ### Physics

A person with a mass of 85kg. How much in newtons do they weigh on the earth and the moon?
83. ### physics

A meteoroid is speeding through the atmosphere, traveling east at 19.5 km/s while descending at 12.7 km/s. What is its speed, in km/s?
84. ### Physics please please help me

Prove the law for triangle ABC i.e sin A/a=sinB/b=sinC/c Please help me!
85. ### Physics

How long does it take light traveling from the sun at 3.0 x 10^8 m/s to reach Jupiter, which is 780 x 10^6 km away?
86. ### Physics

If you must stop your moving car in a hurry, should you slam on the brakes and lock them?
87. ### physics.

an object travels 219 meters with acceleration 6.43 m/s^2 over an interval of 2.86 seconds. What are Vi and Vf.
88. ### Physics

What would the experimental value of g be if the slope of the graph represents 1/2 g and the equation is y=5.00x-.0109639087
89. ### Physics

What is a node? i'm supposed to label the nodes in a diagram of a wave but i can't find it anywhere
90. ### Physics

What element results if two protons and two neutrons are ejected from a radium nucleus?
91. ### Physics

A car slows to a stop over a certain distance. What could cause the stopping force to be greater?
92. ### Physics

I drop an object from a height of 500.0 m. How long does it take to hit the ground?
93. ### Physics

4. Find the magnitude of the force between two charges Q1 = 3µC, Q2 = 2.5µC that are 50mm apart.
94. ### physics

in deep space a gun is fired; how much force will be required to keep the bullet going?
95. ### Physics

6. Two charges, Q1 = 4.6x10-9 C and Q2 = 4.3 x10-9 C, are 60mm apart. What is the electric field halfway between them?
96. ### Physics

show that the oscillation of a liquid in a u-tube is in simple harmonic motion.
97. ### Physics

Finding of radius of capillary tube without knowing surface tension
98. ### Physics/chemistry

Describe the partcle Theory of a HOt air Balloon?
99. ### physics

What equation gives the position as a function of time for an object with constant acceleration?
100. ### physics

A car that decreases its speed from 100 km/h to 20 km/h undergoes ______ acceleration.