# Math/Physics

214,567 results, page 31

1. ### Physics

what is the accuracy percent of 11 divided by 267 times 100?
2. ### physics

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

What is the speed of a proton whose kinetic energy is 12.9 keV?
4. ### physics

How do I find the magnitude from this data: theta_1 = 44.9 theta_2 = 146.1 A = 4.8 cm B = 8.7 cm
5. ### physics

What is the rms value of the sinusoid s(t)=Asin(2πf0t)
6. ### physics

A 31-m/s velocity vector that makes an angle of 44° counterclockwise from the -x direction. x: y:
7. ### physics

7/8 part of a substance decays in 45 days what is its half life
8. ### Physics

Can you please help with the following: x^2+2x-35=0 I can't remember how to get the different possibilities. Appreciate help, thanks
9. ### Physics

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

What is the momentum of a 52-kg carton that slides at 5.0m/s across an icy surface?
11. ### physics

What is the momentum of a 42-kg carton that slides at 3.6m/s across an icy surface?
12. ### Physics

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

What is the momentum of a 52 kg carton that slides at 5.0m/s across an icy surface?
14. ### Physics

Why is using mirrors to generate electricity not a common practice?
15. ### physics

Explain why voltage is constant when connecting resistance in series
16. ### physics

Explain why voltage doesn't change when connecting resistance in series
17. ### atomic physics

What wavelenght of radiation is necessary to ionize hydrogen.
18. ### atomic physics

What's the difference between excited and unexcited hydrogen?
19. ### physics

a 4kg bird is flying with a velocity of 4m/s2. what is the kinetic energy?
20. ### physics

how many Btu of heat are required to melt 8.35 lb of ice at 32 degrees F
21. ### Physics

A mass accelerates uniformly when the resultant force acting on it is......?
22. ### Physics

could you explain friction in a very easy term please
23. ### Physics

What is the mass (in Grams) of a block of aluminum that has a volume of 385 mL
24. ### physics

The equation for distance is d = st. How far does a car go in 10 seconds at a speed of 44 m/s?
25. ### physics

What is the kinetic energy of a 19 kg dog that is running at a speed of 7.7 m/s (about 17 mi/h)?
26. ### physics

What is the minimum speed required to simulate artificial gravity?
27. ### general physics

what are the differences between polygon and parallelogram method?
28. ### PHYSICS

HOW CAN YOU TELL WETHER 2 CHARGES HAVE THE SAME MAGNITUDE
29. ### PHYSICS

T.E of e in excited state is E . WHAT IS KINETIC ENERGY with proper sign
30. ### Physics

Two charge 10C and 5C but no radius. How can I determine Force?
31. ### PHYSICS

what would tension 1 be if W1=15N ,W2=20N and W3=150N, and Muse of k = 0.65?
32. ### physics

what would tension 1 be if W1=15N ,W2=20N and W3=150N, and Muse of k = 0.65?
33. ### physics

What is a charge dipole a basic model of? would it be a magnet?
34. ### PHYSICS

determine the speed of a 2.0g insect that has kinetic energy of 0.020 J.
35. ### physics

Using dimensions, show that 1 joule=107 sq erg.
36. ### physics

What's the net force acting on an 18-kg object if an acceleration of 3.0 m/s2 is produced? A. 54 N B. 12 N C. 6 N D. 36 N
37. ### physics

Q. 2. A force of 100N acts on a mass of 25 kg for 5 s .What velocity does it generate?
38. ### physics

How long will it take a cat to run 8.2m [N] at an average velocity of 3.7m/s [N]
39. ### Physics

A bike wheels rotate 4 revolutions. How radiant has it rotates?
40. ### physics

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

What is the rate of deceleration of a 1400-kg SUV that is going 75.0 km/h and then slows to 25.0 km/h in 8.20 s?
42. ### Physics

A force of 10 N pushing down on a 2m^2 block will produce a pressure of?
43. ### Physics

What does it mean to have a 99.1% experimental uncertainty or percent deviation
44. ### physics

Full explanation of transverse wave with sutable example
45. ### physics

the formula of centripital accelaration is v>2/r Q:Why here is square of speed ?
46. ### physics

Find the displacement of the car after 5.9 s. Answer in units of m
47. ### Physics

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

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

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

the input to a 93.33 efficient belt drive system is 75 kw. what is the output ?
51. ### physics

with what speed does a hammer dropped from a height of 23 m strike the ground?
52. ### physics

a force of 20 n acts on a 5 kg block. calculate the acceleration of the object.
53. ### Physics

What air temperature will feel four times as warm as 0 °F?
54. ### physics

How does a “pop bottle” rocket use the principles of motion
55. ### physics

explain the terms uniform acceleration and average speed.
56. ### Physics

how much work is done to drag a 25kg sled 80m?
57. ### physics

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

find the resultant force 10N and 20N acting at 30¡ã
59. ### physics

calculate the work done in lifting a 300 N weight to a height of 10 m.
60. ### physics

isolate for t s = ut + 1/2at^2 please show all ur steps  
61. ### Physics

The volume of a block of lead that has a mass of 33.6g would have to be?
62. ### physics

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

Which best explains why openness is important to the progress of science?
64. ### Physics

How far does water travel if you restrict the hose opening by 80%
65. ### physics

Why the blood pressre in human greater at the feet than in the brain?
66. ### physics

How many joules of energy are required to melt 80g of silver.
67. ### physics

What is the acceleration (in m/s^2) of a vehicle that changes its velocity from 85 km/h to a dead stop in 13 s?
68. ### Physics

The ratio of velocities of sound in hydrogen and oxygen at stp is???
69. ### Physics

what is the northwest and eastward components of a 550 kph velocity?
70. ### physics

a plane travelling at 200.0m/s braked to a stop in 6.2s. what was its acceleration?
71. ### Physics

What is the change in velocity (in m/s) if an impulse of 225 N acts on a 4.5 kg mass for 3.0 s?
72. ### PHYSICS

Why are cars made with bumpers that can be pushed in during a crash?
73. ### physics

Vector B~ has x, y, and z components of 9.6, 6, and 8.5 units, respectively. Calculate the magnitude of B~ .
74. ### physics

what is the pressure on the bottom of an aquarium 0.3 m deep filled with water
75. ### physics

Calculate the energy absorbed when 8.5g of ice is melted at 0 celsius
76. ### Physics

What effect does the normal force have on the coefficients of friction?
77. ### PHYSICS

Write down the ORDER OF MAGNITUDE for the numbers given: a)4.72*10^-7 b)8.65*10^4 C)7.59*10^-5
78. ### Physics I

What is the torque produced by a force of 40N j applied at the point 2 m i - 5 m j + 3 m k?
79. ### physics

what do you think will happen if a blackhole and a whitehole are close to each other
80. ### 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.
81. ### Physics

Three vectors A,B and C have the following x and y components Ax = 3.6, Ay=-3.4; Bx=-5.5, By=1.9; Cx=2.5, Cy=3.4 What is the magnitude of A+B+C?
82. ### Physics

Find the pressure at the bottom of a swimming pool that is 1.1 m deep.
83. ### physics

what is the acceleration of a car going 25m/s on a cloverleaf with a radius of 45 m?
84. ### physics

Calculate the Specific Gravity of an object that sinks in water if m = 21.97 g and mA = 17.40 g.
85. ### Physics

If I use 1.013x10^5 instead of given 101kpa....is it wrong?
86. ### Physics

Why we have to know refractive index and can use this in normal life?
87. ### Physics 1st

What will be apparent length of a rod 1m long moving with 0.7c
88. ### physics

At a distance of 2.0 m. from a +8.0 x 10^-6 C charge, the magnitude and direction of the electric field will be?
89. ### Physics

is electric field intensity the same as potential difference?
90. ### Physics

Show that the function y(x,t) = X^2+V^2t^2 is a solution of the general wave equation.
91. ### PHYSICS

Do the mass of a body determine the gravity they possess(sun)
92. ### physics

find a unit vector parallel to the resultant of vectors : A=2i^+j^-k^& B=3i^-2j^+2k^
93. ### Physics

Why are electrons allowed to fall on a crystal plate for diffraction ?
94. ### Physics 30

The circuit has two resistors? V= 22V R= 27 Komega R=? I= 12mA
95. ### physics

three resistors are connected in parallel R1=10, R2=50, R3=25.what is the equivalent resistance
96. ### physics

An astronaut has a mass of 60kg.what is her weight here on earth
97. ### physics

a car starts from rest and accelerates at 6m/s^2.how far does it travel in 3s?
98. ### physics

How does a vaccum flask minimize heat change with surrounding
99. ### Physics

An electric field with constant magnitude and direction is said to be?
100. ### physics

What are the charges on and the potential difference across each capacitor in the figure if V = 13.2 V?