74,996 results, page 56
1. ## physics

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

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

if a block of wood dropped from a building has attained a velocity of 78 m/s how long has it been falling?
4. ## physics

find the acceleration of a 3 kg mass as it moves with a constant speed of 4 m/s along a circle of radius 2 m.
5. ## physics

What is the temperature of an ideal gas whose molecules have an average translational kinetic energy of 3.90 10-20 J? K
6. ## PHYSICS

A swimmer is capable of swimming at 1.4m at still water.caculate how far downstream will it smim across 180m?
7. ## Physics

If the period of the moon were 31 days while its orbit radius 3.8x10^8m, what would the mass of the Earth be?
8. ## physics

Why electric dipole moment between two charges points from negative to positive charge.
9. ## physics

A car has a velocity of 25m and accelerates uniformly to 45m/s in 10seconds.what is the acceleration?
10. ## Physics

A person stands 2.0 m away from the reflecting surface of a plane mirror. What are the image characteristics?
11. ## physics

how do you calculate the frequency of a 2.500 m long pendulum in Quito, Ecuador, where g= 9.780 m/s^2
12. ## PHYSICS

A BALL MOVES ROUND A CIRCLE WITH RADIUS OF 20CM CALCULATE THE DISTANCE
13. ## physics

Your friend of mass 80 kg can just barely float in freshwater.Calculate her approximate volume.
14. ## physics

A spaceship has a momentum of 20,000 kg·m/s to the left; its mass is 500 kg. What is the magnitude of its velocity?
15. ## physics

A football is kicked with an initial velocity v=9i+12j. Find the speed in (m/s) of the ball after 2.4s A) 9.2 B) 10.8 C) 12 D) 15
16. ## physics

What is the total mechanical energy of a 20 kg owl flying at 5.0 m/s through the air at a height of 25 m above the ground?
17. ## Physics

What happens to your tongue when you lick an aluminum ice cream scrapper just after it has been used? Does it stick to the scraper? Why?
18. ## Physics

What thrust does a 350 model rocket need in order to have a vertical acceleration of 14.0 on the Earth?
19. ## Physics

someone in a car going past you at the speed of 31m/s drops a small rock from a height of 1.5m.
20. ## physics

Wrap a cotton wool around a thermometre,will its temperature rise? Explain your answer please
21. ## physics

What is the wavelength of the peak of the blackbody radiation curve for the human body (T = 310 K)?
22. ## physics

What is the magnitude of the electrostatic force on a +5 C harge 1.75 m to the left of a -2.5 C Charge? (show your work)
23. ## physics

A ball strikes against the floor and returns with double velocity.In which type of collision is it possible?
24. ## Physics- for Quidditch

I posted the question about the rain before and I understnad how to find componnets...but how would I do that without a given angle?
25. ## Physics

Calculate the power of a hair dryer that operates on 120V and draws a current of 10 A.
26. ## physics

what causes an object to experience an artificial gravitational acceleration in a rotating space station
27. ## physics

if W(a) and W(g) are workdone on a person by air resistance and gravity respectively, during the first 600m of his fall what is the relationship between W(a) and W(g)
28. ## PHYSICS

What is the inductance L of a 0.40 m long air-filled coil 3.2 cm in diameter containing 10,000 loops?
29. ## physics

Calculate the effective value of g, the acceleration of gravity (in meters/second^2), at 8600 km above the earth's surface.
30. ## PHYSICS

If the current in a 100 mH coil changes steadily from 25.0 A to 10.0 A in 375 ms, what is the magnitude of the induced emf?
31. ## physics

So if I have two light bulbs with different wattage how could I show what happens to them in series and parallel. The voltage remains the same.
32. ## physics

A man walks 5.0m due east and then 10.0m N30oE . Find his resultant displacement
33. ## physics

If a protonand an electron are released when they 2.0X10^-10m apart, find the initial accelerationof each of them. I know a=ke^2/mr^2 k = 8.99 x 10^9 e = 1.6 x 10^-19 r = 2.0x 10^-10 so what is the m ????
34. ## physics

You can paddle at 4.5 km/h and the river is ﬂowing at 3 km/h. How far downstream will you be in 44 min? Answer in units of km
35. ## Physics

I want to become an astonomer or study astrophysics but I didnt do maths a level can I still do it? Is there any way you can help me or provide aN alternative
36. ## Physics

Calculate the average speed of the car in km/h, it can accelerate from 96.56 km/hr in 4.3 seconds. Distance is not provided
37. ## physics

why we cannot use visible light for studying the crystal structure using Bragg’s diffraction method?
38. ## physics

What’s the direction of the electric field caused at the point (–2, 3) by an electron located at the origin?
39. ## physics

Yeah I know it is! But it's really confusing me and it's what my teacher wants. Say I was to pick a height of 25m and a Velocity of 20.0m/s, what would be my next step?
40. ## physics

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

How could you repair an electric fan that is not working properly? Apply scientific method.
42. ## Physics

What is the age in years of a bone in which the ratio 14C/ 12C is measured to be 2.3×10^−13?
43. ## Physics

90.0g of copper (c=390J/kg*oC) at 80.0°C are added to 270g of water at 20.0°C. What is the final temperature of the mixture?
44. ## Physics

How much energy in kilocalories is expended against gravity alone by a 75- kg man climbing 1500 m up a mountain?
45. ## physics

What is the frequency of the microwaves in a microwave oven? The wavelength is 12 cm. I have to give the answer in GHz
46. ## Physics

How much is needed to melt an ice cube, 3 centimeters on each side at 0 degree celcius?
47. ## PHYSICS

How is the evolution of animal like the long necked giraffe explained by Charles Darwin?
48. ## physics

If the resultant velocity is 29.7 m/s and is directed at an angle of 22 degrees, what are the horizontal and vertical components?
49. ## physics

What is the potential energy of a bear with the mass of 200 kg in 20 meter altitude of a mountain?
50. ## Physics

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

a body is thrown downward with an initial speed of 20.0 m/s on earth. what is the acceleration of the object
52. ## physics

you drop a penny off the roof and it htis the water 4.2 seconds later, what is the height of the bridge?
53. ## Physics

A 68.5kg man is standing still on an elevator that isn't moving, what is the normal force on him?
54. ## physics

find the force if f between charges of +100mc -50mc located 50cm a part?
55. ## physics

A car starts from rest and accelerates for 6.7 s with an acceleration of 1.6 m/s2 . How far does it travel? Answer in units of m
56. ## physics

An airplane flies toward 124° at 525 km/h. What is the component of the plane's velocity (a) toward 90°? km/h (b) toward 180°? km/h
57. ## physics

if the resultant of 2 equal force inclint to each other at 60° is 8root3N. Find the component forces?
58. ## 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?
59. ## Physics

At what projection angle will the range of a projectile equal to 5 times its maximum height?
60. ## physics

a 10-kg bos slides down a frictionless ramp with acceleration 3.6 m/s calculate the weight anlge? f ?
61. ## physics

Calculate the speed of a ball tied to a string of length 1.5 m making 4.6 revolutions every second.
62. ## physics

i need to investigate nichrome wire and a globe and i need to state which is an ohmic conductor. what will my method be??
63. ## physics

How much heat must be absorbed by a 500 g pot of water in order to raise the temperature from 20„aC to 30„aC?
64. ## physics 2

1)what potential differences must be applied across across a 1500 resistor in order that the resulting current be 50.mA?
65. ## physics

Calculate the quantity of heat required to raise the temperature of 2.00 g of water 4.00◦C.
66. ## 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?
67. ## Physics

How much does it cost to operate a 23-W porch light for 24 h if electric energy costs 8¢/kWh?
68. ## physics

A boy drops a mango from a tree it falls without rebound wat happens to its momentum
69. ## Physics

If an object has a work of 300J and a displacement of 20m, how would I determine the net force?
70. ## Physics

Someone here pls help me find the best animation of electrons and protons. Post here the link of the video, thank you.
71. ## physics

the speed of a bullet of mass is 40gram is 216km/h what is the kinetic energy in joule
72. ## Physics 1

What torque is needed to accelerate a 70Kg disk with a 20 cm radius from rest to 10 rad/s?
73. ## Physics

An object is shot upwards, from the ground, with an initial velocity of 120 m/s. How high will it be after 4.0s?
74. ## physics engg.

A deutron is moving with a speed of 2*10^8m/s. Find the wavelength of the matter wave associated with it?
75. ## physics

A jet travels at 434 m/s. How long does it take to travel 294 m? Answer in units of s
76. ## physics

a rock was thrown at the height of 50.0 m above the ground with an initial velocity of 20.0 m/s straight upward.
77. ## physics

Starting from the constant-acceleration kinematic equations, write a formula that gives xf in terms of t, xi, vf, and a. xf
78. ## Physics

How do you find the moment of inertia of an actual bicycle about an axis through the pedal crank?
79. ## Physics

What is the acceleration experienced by the tip of the 1.5 cm-long sweep second hand on your wrist watch?
80. ## physics

find the force if f between charges of 100mc -50mc located 50cm a part?
81. ## physics

what is the initial velocity (Vyo) of a projectile launched horizontally? why? i know that it is 0 m/s, but i don't know why/how to explain it.
82. ## physics

A 1.25-kg book in space has a weight of 8.35 N. What is the value of the gravitational field at that location? GIVEN: m = 1.25 kg W = 8.35 N Therefore, they want the acceleration. Would I use this equation g = Fg/m?
83. ## physics

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

What’s the direction of the electric field caused at the point (–2, 3) by an electron located at the origin?
85. ## physics

An 80 kg man on a 10 kg stretcher is being pulled upward with constant speed. What is the tension on the rope ?
86. ## Physics

What is the force necessary to accelerate an object with a mass of 115 kg and and an acceleration of 6 m/s2 (squared) east?
87. ## physics

Good job "Drwls", your answer to my bowling ball question worked. Way to go!
88. ## physics

how long does a car with an acceleration of 2.0 m/s^2 take to go from 10m/s to 30m/s?and show the solution how do you get the answer.
89. ## Physics

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

what is the potential energy of 4 point charges each of value Q at the corners of a square of side length a.
91. ## Physics

If I dropped a bowling ball from the empyre state building, at what velocity would it descend?
92. ## PHYSICS

What is the potential energy of a 150 kg diver standing on a diving board that is 10 m high?
93. ## Physics 1100

Find theta; and W in the figure below where w1 = 21.0 N, w2 = 34.0 N, and α = 64.0°, assuming that the arrangement is at rest.
94. ## physics

what force is required to make an object of mass 500g accelerate at 4m/s2 (sqaured) ?
95. ## Physics

Two charges +1C and -1C are placed at distance 1m apart ,each having masses 2kg respectively are released.what is the type of collision they experience?
96. ## Physics

A 68.5kg man is standing still on an elevator that isn't moving, what is the normal force on him?
97. ## physics

Your friend says his remote control car travels at a velocity of 1.5 m/s. What is wrong with that statement
98. ## physics

three point charges-1*10^-6,-2*10^-6,3*10^-6.one kept at corners of an equilateral triangle of side 1m.what is potential at centre
99. ## Physics

A 0.50 kg hammer is taken on a space mission. What is its weight on a planet where the acceleration due to gravity is 3.8 m/s2? 0.50 kg 1.9 kg 0.50 N 1.9 N
100. ## Physics

How would a physics expert respond to the following suggestions made by three airline executives? Write a script of the expert's response for performance in front of the class. Airline Exectutive A: Since the earth rotates from west to east, we could