Math/Physics

210,322 results, page 53

physics

Find the field produced by a uniformly charged sheet carrying 93pC/cm2 .

Physics

What is the direction of force of friction on a bicycle on front and back wheel while paddling?

physics

A body immersed in liquid has an upthrust of 140N with a density of 12kg calculate the velocity

Physics

A car starts from rest and accelerates for 3.9 s with an acceleration of 5 m/s2 . How far does it travel? Answer in units of m

physics

A meteoroid is speeding through the atmosphere, traveling east at 24.5 km/s while descending at 11.6 km/s. What is its speed, in km/s?

Physics

What is the car's forward acceleration,at a speed of 30m/s,when the driving force on the wheels is 650N

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?

physics

calculate the linear momentum of a truck with a mass of 13065kg that is traveling at 36m/s eastward.

Physics

a 52kg person riding a bike rotates her wheels in a circle of 17 cm what is her max tourque

physics

Show that the magnitude of the charge on a capacitor is given by Q = (Qo(1-e^-(t/T))) and Q = Qoe^-(t/T) for charging and discharging, respectively.

physics

With V = Voe^-(t/T), how many time constants does it take for a capacitor to discharge less than 1% of its initial voltage?

physics

How much work does a student do if he throws a 0.750 kg ball with force of 45.0 N through a distance of 1.50 m?

Physics

What is the kinetic energy of a 1100 kg sports car traveling down the road with a speed of 22 m/s?

physics

What is the charge of a bare Magnesium nucleus (no electrons, just the protons and neutrons) in Coulombs?

physics

on a cool night with no wind people facing a campfire feel a breeze on their backs. why?

Physics

coin and a piece of glass are both heated to 60 degrees celsius which will be warmer when you touch it ?

Physics

Why do some cooks put long aluminum nails through potatoes to be baked?

Physics

coin and a piece of glass are both heated to 60 degrees celsius which will be warmer when you touch it ?

Physics

Why do some cooks put long aluminum nails through potatoes to be baked?

physics-

In a string and pulley problem, will friction increase or decrease the tension.can you please explain if you can?

Physical Science

What are the noninvasive benefits of the medical technologies that rely on physics of elementary particles?

PHYSICS

How is the evolution of animal like the long necked giraffe explained by Charles Darwin?

physics

If a solid is stretched or compressed beyond the point that it can return to its original shape it has passed its

physics

Write the equation for fill factor in terms of V_max, V_oc, J_max, and J_sc. FF =

Physics

A bus slows down uniformly from 75 km/h to 15 km/h in 12.55 s. How far did the car travel before stopping?

Physics

If an electron moves perpendicular to the same field with this speed,what is the radius of its circular orbit?

physics

How much time does it take a pulse of light to travel through 180\({\rm {\rm m}}\) of water?

physics

A body of mass 10kg in air and 4kg in water calculate the volume and its density

Physics

A 1.25kg book in space has a weight of 8.35N. What is the value of the gravitational field at that location ?

physics

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

physics

a year ago she measured 98cm from her tree . now it 1.1m tall how much has it grown

physics

a block of wood of 200g is thrown vetically with a veloncity of 20mls what is the pontential energy?

physics

A car is moving down a highway at -15 m/s and accelerating at 3 m/s^2. If it's initial position is at x = 0 m where will it be after 3 seconds?

physics

A driver drives 2.5 hours at an average speed of 48MPH. What distance does she travel in this time?

physics

A driver drives 2.5 hours at an average speed of 48MPH. What distance does she travel in this time?

Physics

Make a predictive statement about the path dependence of accelerations due to gravity

Physics

A car accelerates from 12m/s to 25m/s in 6.0s. What is its uniform acceleration? How far did it travel in this time?

Physics

If the fundamental frequency of an 70 cm long guitar string is 470 Hz, what is the speed of the traveling waves?

Physics

Find the net force and the acceleration for the situation below. 30N 20N <---------------[ 5.1kg]---------->

Physics

A person is travelling 6 km (E) then 4 km (N) and finally 2 km (W). Calculate the average speed And velocity. Show your work

Physics

A 56 kg swimmer jumps off of 15 m tower. Find the swimmers velocity when hitting the water.

physics-lenses

trace and describe the image formed by a convex lens (object between 2f and f)

PHYSICS IMPULSE MOMENTUM QUESTION

what is a scenario in which REDUCING the time of impact would be beneficial?

Physics

If you wish to warm 100 kg of water by 20° C for your bath, show that 8370 kJ of heat is required.?

Physics

torque to move a block of m=200kg for 10m at an angle of 25 degree with a speed of 20m/s.

physics

two vectors A and B each have magnitude 220 and angle BETWEEN THEM IS 120 WHAT WILL BE RESULTANT?

Physics

I don't understand this question... What is the change in entropy for a system that has 250 J of heat added to it at 25°C? (Points : 1) 10 J/K 0.84 J/K 0.84 J/K 10 J/K

physics

What are the principles behind seatbelts and air bags that make passengers safer in a collision?

physics

explain the input energy and out put energies of two kitchen machines

Physics

explain the input energy and out put energies of two kitchen machines

physics

explain the input energy and out put energies of two kitchen machines

physics

The mass of an iron cube having an edge length 1.8 cm is 70 g. Find itd density.

Physics

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

physics

a bus decreases its speed from 80kmh-1to 60kmh-1 in 5 sec find the acceleration

PHYSICS

A point source of a wave emits 195 watts. What is the intensity at a distance of 4.56 meters? I =

physics

Things around you are emitting infrared radiation that includes the wavelength 1.44 10-5 m. What is the energy of the photons?

Physics

What is the partial pressure of water on a day when the temperature is 25C and the relative humidity is 33% P=___Pa

Physics

A golf ball struck with an initial speed of 41.8m/s. What is the range of the shot if the launch angle is 30.0º?

Physics

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

Physics

8.2 kg of ice is taken from a temperature of -49 C into steam at 123 C. What is the energy used? Q_total =

physics

What is the free-fall acceleration in a location where the period of a 2.87 m long pendulum is 3.4 s? Answer in units of m/s 2

physics

The elastic potential energy of an object may be negative Select one: True False

physics

if a train at 72kmphr is to be brought to rest in a distance of 200 m then its retardation is A 20m/s^2 b 10m/s^2 c 2m/s^2 d 1m/s^2

physics

Find the work done by 2.32 moles of an ideal gas if its volume doubles at a constant temperature of 22.6°C.

Physics

A 2.73 kg particle has a velocity of vx = 6.02 m/s and vy = 0.316 m/s. Find the magnitude of its total momentum. Answer in units of kg · m/s

physics

How much force is needed to accelerate a 50kg rider and his 250kg motorcycle at 4m/s27

Physics

if the mass of two balls is 0.300 kg each then what is the gravitational force between them if the distance is 0.3000 m

physics

An aircraft on its take-off run has a steady acceleration of 3.0 m/s2. It's velocity after 10 seconds will be

physics

what must be the mass of the log to be lifted up by the hand, if the muscle cross sectional area is 17 cm^2?

physics

If you heat a thin circular ring in a oven, does the rings hole get larger or smaller.why?

physics

If a nuclide has a decay constant of 10^-6 s-1 what is its half life ??? I think it is 0.693 / 10^-6 = 693000 or 6.93 x 10^5 Is this right ...

physics

Write down the unit in which reaction rate is measured in this observation? Equation is Zn(s)+I~ZnI

Physics

What is the magnitude of the electric force between a proton and an electron when they are at a distance of 2.63 Angstrom from each other?

physics

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

physics engg.

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

Physics

What electric field strength would store 17.5J of energy in every 9.00mm3 of space?

Physics

Calculate the average speed (in km/h)of Larry, who runs to the store 3.6 kilometers away in 40 minutes.

Physics

What is the peak current through a 400–W room heater that operates on 120–V AC power?

Physics

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

Physics

An object that starts from rest completes 7 revs in 3 seconds. What is angular accel. in rad/s2?

Physics

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

physics

A car travels in a straight line for 2.8 h at a constant speed of 53 km/h . What is its acceleration? Answer in units of m/s 2

Physics

What is the minimum energy needed to change the speed of a 1600 kg sport utility vehicle from 15.0 m/s to 40.0 m/s?

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

physics

A car travels in a straight line for 3.9 h at a constant speed of 63 km/h. What is its acceleration? Answer in units of m/s2

Physics

700 kg plane is traveling at 90 m/s at altitude of 1500 m what is planes total mechanical energy

physics

A dart is thrown horizontally toward X at 30 m/s as shown. It hits Y 0.29 s later. The distance XY in centimeters is:

physics

A bus moves from rest with a uniform acceleration of 2ms(square)for the first 10s.

physics

How can the equation be prove:maximum height,time of flight and maximun range in projectile?

physics

What force F must be applied to the small piston to maintain the load of 49 kN at a constant elevation?

physics

How high must your roof be to fire 1.2km if it fires at 450 m/s muzzle velocity?

physics

a boy pulls a bucket of water of mass sky from a well of depth 10 cm calculate the work done ?

physics

Calculate the velocity of a skateboarder who accelerates from rest for 6.7 seconds down a ramp at an acceleration of 6.5 m/s2

physics

what should the ratio of mass to volume be when considering the flight of a hot air balloon.

physics

A 4.53 kg particle has a velocity of vx = 3.98 m/s and vy = −3.16 m/s. Find the magnitude of its total momentum. Answer in units of kg · m/s

Chemistry Physics

What is the wavelength of an electromagnetic wave with frequency 50.0 MHz? Am I starting this problem like this? 3.00*10^8/50*10^6 =6*10^12

Physics

A guitar string has a mass of 30g and length of 2m. Find the tension if its density is 0.2kg/m^3

Physics

I don't understand how to do this : A force of 40 N accelerates a 7.17 kg block at 6.0 m/s2 along a horizontal surface. Determine the normal.

Physics

A 4.26 kg block starts up a 33.0 degree incline at 7.81 m/s. How far will it slide if the coefficient of kinetic friction is 0.23?

physics

a 50 gram object is accelerating at a rate of 5 m/s2. calculate the force needed to produce this acceleration

Pages

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13
  14. 14
  15. 15
  16. 16
  17. 17
  18. 18
  19. 19
  20. 20
  21. 21
  22. 22
  23. 23
  24. 24
  25. 25
  26. 26
  27. 27
  28. 28
  29. 29
  30. 30
  31. 31
  32. 32
  33. 33
  34. 34
  35. 35
  36. 36
  37. 37
  38. 38
  39. 39
  40. 40
  41. 41
  42. 42
  43. 43
  44. 44
  45. 45
  46. 46
  47. 47
  48. 48
  49. 49
  50. 50
  51. 51
  52. 52
  53. 53
  54. 54
  55. 55
  56. 56
  57. 57
  58. 58
  59. 59
  60. 60
  61. 61
  62. 62
  63. 63
  64. 64
  65. 65
  66. 66
  67. 67
  68. 68
  69. 69
  70. 70
  71. 71
  72. 72
  73. 73
  74. 74
  75. 75
  76. 76
  77. 77
  78. 78
  79. 79
  80. 80
  81. 81
  82. 82
  83. 83
  84. 84
  85. 85
  86. 86
  87. 87
  88. 88
  89. 89
  90. 90
  91. 91
  92. 92
  93. 93
  94. 94
  95. 95
  96. 96
  97. 97
  98. 98
  99. 99
  100. 100