# Math/Physics

214,834 results, page 34

1. ### physics

Distance covered per unit of time is called _________.
2. ### Physics

Could you explain to me how it is possible to run a distance of 1.0 km and have zero displacment.
3. ### physics

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

a spacecraft has an acceleration of magnitudes 5.0g what distance is needed for it to attach a velocity of 10 km/s?
5. ### Physics

the total amount of energy possessed by a body always remains.............
6. ### Physics

for imcomplete cancellation to occur, opposite pulses must have?
7. ### Physics

The problem contains graphics that I don't know how to show other than in an image format: h t t p : / / b i t . l y / c D H P V M h t t p : / / b i t . l y / 9 m b y C R
8. ### Physics

The problem contains graphics that I don't know how to show other than in an image format: h t t p : / / b i t . l y / c D H P V M h t t p : / / b i t . l y / 9 m b y C R
9. ### Physics

Whatis the volume of a piece of iron (p= 7.9g/ cm cubed) that has a mass of 0.50kg?
10. ### physics

A car brakes, changing from 18 m/s to 6.0 m/s in 3.0 seconds. How far did it travel in this time?
11. ### physics

you drive 2.0 km east and then 1.0 km northeast. What is your total displacement from the starting point?
12. ### physics

A fully loaded 737 aircraft takes off at 250 {\rm km/h}.
13. ### physics

What relationship should be used to solve this situation? 1. x = v − t 2. x =v/t 3. x = vt 4. x = v + t 5. None of these
14. ### physics

a 1500 kg car accelerates from 0 to 25 m/s in 7.0 s. What is the average power delivered to the engine?
15. ### physics

0.24 h to reach the school from your house. velocity of the bus is 19.7 km/h to the east, what is the displacement?
16. ### Physics

A car brakes from 18 m/s to 6.0m/s in 3.0 seconds. How far did it travel in this time? I got 36 m...
17. ### physics

What is the average density of Mars? Mass = 6.42 x1023 kg, radius = 3390 km.
18. ### physics- urgent

an object travels at a rate of 48.5 km/sec. how many cm/min would that be
19. ### Physics

An airplane normally flies at 280 km/h. What is its airspeed if it experiences 80 km/hr headwind?
20. ### Physics

An airplane normally flies at 280 km/h. What is its airspeed if it experiences 80 km/hr headwind?
21. ### physics

An object is thrown vertically upward with a speed of 31.8 m/s. How high does it rise?
22. ### Physics

The sum of 5.2713x10^3 + 6.54014x10^3 expressed to 4 significant figures would be?
23. ### physics

An object is thrown vertically upward with a speed of 22.4 m/s. How high does it rise?
24. ### physics

An object is thrown vertically upward with a speed of 22.4 m/s. How high does it rise?
25. ### physics

What force is needed to accelerate a child on a sled (total mass = 65.0 kg) at 1.75 m/s^2
26. ### physics

What capacitance is required to store an energy of 13 kW·h at a potential difference of 940 V?
27. ### physics

if a car was compacted into a cube would the weight change?
28. ### physics

5. What is the acceleration of a 20 N object that is pulled up a 30° incline by a 25 N force? The coefficient of friction is 0.30
29. ### physics

5. What is the acceleration of a 20 N object that is pulled up a 30° incline by a 25 N force? The coefficient of friction is 0.30.
30. ### physics

in what direction should a force be applied to produce maximum torque.?
31. ### Physics

How much work is required to stop an electron (m= 9.11 * 10^-31 kg) which is moving with a speed of 1.80×10^6 m/s?
32. ### physics

would an object weigh more or less if there were no atmosphere on earth
33. ### physics

whats the acceleration of a car traveling 402 meters in 6 seconds
34. ### physics

The rate at which distance changes in a time period is called acceleration
35. ### physics

What angle does the tangent to the curve y(x)=sin^2(x/9)+16sin(x/9) at x=9\pi make with the x-axis?
36. ### physics

is the force exerted by the wall on the person’s hand passive or active?

Give 2 examples of force pairs when you do your homework?
38. ### physics

How much work will a net force of 56·N west do on the cart as it moves 1·m?
39. ### physics

what's the resulting acceleration when unbalanced force of 98N applied to a 5.1 kg object?
40. ### physics (Science)

If a bee flew 27 centimeters in 10 seconds what would its speed be?
41. ### physics

all electric charges are multiples of the charge on an electron, or atom?
42. ### physics

What force is required to accelerate a 90kg bike to 20 m/s in 15 sec? I need to know HOW to do it!
43. ### physics

With acceleration of 2500 m/s2, how long will it take to rreach speed of light
44. ### physics

What force is required to accelerate a 90kg bike to 20 m/s in 15 sec? I need to know HOW to do it!
45. ### physics

With acceleration of 2500 m/s2, how long will it take to rreach speed of light
46. ### physics

Calculate the mass of the Earth, if it had a radius of 3000 km and a gravity of 6 m/s^2.
47. ### physics bob

yeah im really confused. is there any way i can pay you to be my tutor
48. ### physics

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

express the angular velocity of the second hand on a clock in rev/hr
50. ### Physics

How do you calculate the energy needed to heat 4 kg of water from 25oC to 45oC?
51. ### Physics

A football is thrown at 14.0 m/s at an angle of 35.0 degrees. How far away does it land?
52. ### Physics

How long would it take (in seconds) to travel 1 km at a speed of 100 km/h?
53. ### physics

A 5 kg block of average density .625 kg/m^3 has a volume of about _____ cu. m
54. ### physics

A 5 kg block of average density .625 kg/m^3 has a volume of about _____ cu. m
55. ### Physics

You are standing 0.75 m from your bathroom mirror in the morning. How far away is your image from you?
56. ### physics

how long does it take to do 432 joules of work with 75 watts of power?
57. ### physics

if 478 watts of power are used in 14 seconds, how much work was done?
58. ### Physics

A 3.5 kg body accelerates from rest to 20 m/s in 5 s. Calculate: A its acceleration B the force required.
59. ### Physics

Why does tension in a rope increase as the rotational speed of a ball increases?

A car slows down from +32 m/s to +8 m/s in 4s. Calculate the acceleration .
61. ### Physics

The 2010 Mustang GT accelerates from 0 to 60 mph in 5.2 seconds. What is the acceleration rate? in m/s/s?
62. ### physics

what happens to the gravitational energy of a firefighter when he slides down the firepoles?
63. ### physics

What force is necessary for a person to hold a 50 kg mass over their head?
64. ### physics

What force is necessary for a person to hold a 50 kg mass over their head?
65. ### Physics

An arrow is shot from a bow at 42 m/s at 70 degrees what is the horizontal and vertical components
66. ### physics

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

Describe Robert Millikan's experiment and what significant info he learned?
68. ### physics

if you exert a force of 500 N to walk 4 m up a flight of stairs in 4 s, how much
69. ### physics

pls show answers and work with the questions i have posted.
70. ### physics

What is the mass of a marble cylinder with a diameter of .42m and a length of 1.25m?
71. ### physics

if a wooden beam is 30 x 20 x 500 cm. and has a mass of 150 kg. what is the density of the wood
72. ### physics

what is tangential velocity of the earth as it travels in its orbit around the sun?
73. ### Physics

Calculate the volume of a spherical balloon which has a surface area of 0.0793 m2
74. ### physics

Calculate the number density of strontium titanate (SrTiO3), ρ = 5.12 g cm -3
75. ### physics

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

What are the components of a vector of magnitude 1.5 m at an angle of 35 degrees from the positive x-axis?
77. ### Physics

Show that work done in a wire, E=YAsqr(e)/2l, explainthe symbols. pls help.thanks
78. ### Physics

a sled is capable of reaching speeds of 450 m/s in 1.82 s then stopped in 1.92 s what is the acceleration
79. ### Physics

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

What's the equation to find the maximum height after a spring decompresses?
81. ### physics

Suppose that you have a circle with a radius of 4.02 ± 0.39 m, what is the calculated uncertainty in the area?
82. ### physics

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

If a 75-kg skater starts his skate at 8.0m, at his lowest point (height = 0), what is his velocity?
84. ### physics

A car has an acceleration of 16 pc/y2. This value can be CONVERTED into which of the following units?
85. ### physics

what is the kinetic energy of a 200 g bullet travelling at a velocity of 400 m/s?
86. ### physics

how does temperature affect the time it takes to reach thermal equilibrium?
87. ### physics

a car accelerates from 5 m/s to 21 m/s at a rate of 3m/s^2 how far does it travel while accelerating
88. ### physics

there is any peak shift between bulk and nano materials in xrd.
89. ### Physics

Calculate the magnitude of the potential difference between points a and b in the figure if R1=2.36 Ù, R2=4.29 Ù,and R3=10.08 Ù.
90. ### Physics

If the amplitude of a sound wave is quadrupled, by what factor will the intensity increase?
91. ### physics

the kilowatt-hour is a unit of: force, work, power, or time?
92. ### Physics

How many calories are released when 3 grams of 100º C steam turns to 0º C ice
93. ### physics

A mass is attached to a string and then dropped. What is its velocity after 5 sec?
94. ### Physics

How much work is done in accelerating a 2000 kg car from rest to a speed of 30 m/s?
95. ### Physics

A rock is dropped from a height of 2.7 m. How fast is it going when it hits the ground?
96. ### PHYSICS

Determine the equivalent capacitance between A and B for the group of capacitors in the drawing. Let C1 = 12 µF and C2 = 4.0 µF.
97. ### physics

how high does a stone rise if it initially thrown at a rate of 15m/s?
98. ### physics

traveling at 27.78 m/s with a deceleration rate of 5m/s squared.....How long will it take you to decelerate to 0.
99. ### physics

traveling at 27.78 m/s with a deceleration rate of 5m/s squared.....How long will it take you to decelerate to 0.
100. ### physics

Three charges, +2.5 µC, -4.3 µC, and -6.0 µC, are located at (-0.20 m, 0.15 m), (0.50 m, -0.35 m), and (-0.42 m, -0.32 m), respectively. What is the electric field at the origin?