Math/Physics

206,302 results, page 39

physics

You are flying to Chicago for a weekend away from the books. In your last physics class, you learned that the airflow over the wings of the plane creates a lift force, which acts perpendicular to the wings. When the plane is flying level, the upward lift force exactly balances...

Physics

A small circular object with mass m and radius r has a moment of inertia given by I = cmr2. The object rolls without slipping along the track shown in the figure. The track ends with a ramp of height R = 3.0 m that launches the object vertically. The object starts from a ...

Physics

Hi guys, need help with this problem for physics and im having trouble visualizing it. Kathy and mountain climber climbs a 55.0 m cliff that overhangs a calm pool of water. He throws two stones vertically downward, 1.00 s apart, and observes that they cause a single splash. ...

Physics

Ammeter 1 reads 0.20 A. a. What should ammeter 3 indicate? b. What should ammeter 4 indicate? Given: RA = 22-OHM RB = 13-OHM A1 = 0.20 A Ammeter 2 reads 0.15A. a. Find the voltage across the 22-ohm resistor? b. Find the voltage across the 15-ohm resistor? c. What is the ...

Physics

If you have steel and wood at 0 Celsius, which is colder Both are the same temperature.

Physics

If the earth had no atmosphere, what would the color of the sky be during the day?

Physics

what is the angular speed, in rad/s, of a point on the surface of Jupiter at latitude 72 degrees N?

physics

why are the lengths of days in spring and autumn the same? if the sun does not set, why is it so cold?

Physics

When is your weight normal, higher, or lower while moving up and down in an elevator?

Physics

1. How can voltage be induced in a wire? Can someone help me figure out an answer to this? please

Physics

what must be the minimum velocity of a missile if it is strike a target a 100m away?

physics

Why will a magnet attract an ordinary nail or paper clips but not a wooden pencil?

PHYSICS QUESTION!!!!

how do you find the height or time? is it h=squreroot4.9/t or h=squareroott/4.9 or is it something else complettly???

physics

need the formula to find jupiters orbital period in earth years

physics

If,an,object,is,at,rest,there,must,be,no,force,acting,on,it.Is,this,statement,correct?,Explain!

Physics

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

Physics

When you look at a distant galaxy through a telescope, how is it that you're looking backward in time?

physics

How much would a 60-kg person weight on the Moon where the gravitational field has a magnitude of 1.6 N/kg?

physics

How long does it take a car to travel 196 meters when accelerating at 8 m/s2 from rest?

Physics

Can we Connect two or more batteries of different voltage in parallel circuit?

Physics

Assume the utility rate to be $.20/kWh. What is the cost of purchasing 10kW for 1.0 hour?

Physics

Why is Young's experiment more effective with slits than with the pinholes he first used?

physics

Find the intensity level 10m from a 0.24 watt source of sound energy?

Physics

How can you use a curved mirror to make a telescope? If possible, if there a diagram somewhere?

Physics

Why does light striking a metal surface eject only electrons, not protons?

Physics

An electron and a proton are traveling at the same speed. Which one has the longer wavelength?

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.

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) )

physics/science

i don't understand why radioactive waste is stored underground is it because it is a harmful substance

Physics

Which color light is the result of a greater energy transition, red or blue?

Physics check

The spectral lines for elements are sometimes called atomic..... spectra?

Physics check

Rank the following transitions in order of low to high frequencies: 3-2; 4-3; 2-1; 5-4; 5-3; 3-1; 4-2. 5-3; 4-2; 3-1; 5-4; 4-3; 3-2; 2-1 ?

physics

'perpetual motion' is ruled out of the realm of possibility because of which law of thermodynamics?

Physics

What are differences and similarities of the electric charges (+ and -) and the magnetic forces (North and South)?

physics

what is the maximum downward accelaration you can give your hand in m/s^2 i was thinking 10 due to gravity

physics

can anyone give me a site that would explain about torque and equilibrium.. thanks a lot.. :)

physics

how do you find the verticle component of velocity of a projectile just as it strikes the ground?

Physics

why isn't it a good idea to spread salt on the road in really cold climates?

physics

If the density of a medium is 1000 kg/m3 and the propagation speed is 1540 m/s, the impedance is rayls.

physics

why is it harder to maintain costant accleration rather than cosntant velocity when walking

physics

Describe the differences between the force of gravity and buoyant forces on a swimmer.

physics

why would you wear a white t shirt opposed to a blak one in winter

gr.10 physics

could someone please help me with this? Rearrange and simplify for r when A=3.14r^2 by the way, 3.14 is supposed to be pi, but i don't know how to write it...

Physics

Why is the momentum in a spaceship traveling in space not conserved? Can someone please explain? thanks

Physics

If the current in a wire is 0.1A, how long will it take for 10C of charge to pass through it?

physics

What is the R-factor of insulation and what does it equal? i have looked everywhere and can not seem to find it.

Physics

How can you prove that acceleration due to gravity is the same in a resting and moving frame?

physics

If a hair dryer is rated at 800W, how much energy does it require in 3 min?

Physics

KNOWNS: Diverging (convex) mirror Radius of curvature = 60 cm (f = 30 cm) M = 1/5 Hi = 20 cm UNKNOWNS: Ho? Di? Do? EQUATIONS: 1/Do + 1/Di = 1/f M = Hi/Ho = -Di/Do

physics

why is the color of the sky orange during sunrise and sunset? --pls help me on here-- thanks :)

physics

compare and contrast sound and electromagnetic waves in terms of types, speed, etc.

physics

compare and contrast sound and electromagnetic waves in terms of types, speed, etc.

physics

compare and contrast sound and electromagnetic waves in terms of types, speed, etc.

Physics

Does the axis system chosen affect the magnitude of potential energy? I say yes

physics

I have the energy and frequency of a light source and I need the wavelength and colour. What do I do?

Physics

An electromagnetic radiation has a frequency of 5.00 X 10^14 Hz. Calculate its wavelength in a vacuum in metres and nanomatres?

Physics

I dropped an object from a certain height and gravity was acting on it. What type of motion is that and how do I know this?

Quick Question #2

How did Max Planck came upon/discover Quantum Physics? thank you

physics

How much work must be done in stopping a 3,000 kg truck traveling at 60 mph?

AP Physics

I posted questions down below about chapter 1 aparently they were missed.

physics

I can't fully understand Fermat's principle of least time (the modern version)

physics

Two point charges, +3.45 µC and -6.50 µC, are separated by 1.19 m. What is the electric potential midway between them?

physics(cross products of vectors)

How do I perform the right hand rule? I'm confused.

physics

A cart travels a constant speed of 2.80 ± 0.01 m/s for a time of 8.80 ± 0.04 s What is uncertainty, &deltax, in the distance, ?

physics

what is the angular speed of Earth around the Sun in radians per second

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?

physics

What is the distance travelled in 22 s as a given sound moves through carbon dioxide at 0 C?

physics

If a car accelerates from rest at a constant 5.5m/s^2, how long will be required to reach 28m/s?

physics

A train accelerates from rest at a constant rate of 10 m/s^2. How fast is it going after 5 s?

physics

If jon has a weight of 645N what is his mass? I have to do this using the GUESS METHOD

physics 1

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

physics 8th grade

If a woman hasa mass of 50 kg calculate her weight in neutons

Physics

In ten to fifteen pages, write the applications and effects of solid expansion

Gr 11 Physics Optics Unit

Explain why a virtual image must always be upright.

physics

What happens to the gravitational energy of a firefighter when he slides down the fire pole?

physics

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

physics

how do you find the magnitude of the net force if you have 2 forces acting on an object: 8.4 N[S] and 7.5 N[E]

Physics

The longest and shortests wavelengths of the Lyman series of singly ionized Helium

science/physics

What acceleration will you give to a 25.8 kg box if you push it horizontally with a net force of 89.6 N?

physics

a guy walks one lap at 35 miles per hour, what is his velocity?

physics

How many 160ohms resistors must be connected in parallel to draw a current of 6.0A from a 120V

physics

how can a racing bicycle have the same linear momentum as a pick-up truck?

physics

what happens to acceleration due to gravity if you climb the tallest mountains on the earth ?

Health Physics

The human body is 20-25 percent efficient. In what form is energy lost?

Physics

Why use remote sensing for obtaining information about areas or objects?

Physics

Why use remote sensing for obtaining information about areas or objects?

physics

You throw a ball straight up at 25 m/s. How many seconds elapse before it is traveling downward at 13 m/s?

physics

You throw a ball straight up at 25 m/s. How many seconds elapse before it is traveling downward at 13 m/s? 1 s

Physics

Why is the CM of a 1.00m length of pipe at its midpoint, whereas this is not true for your arm or leg?

Physics

A 74.0 kg firefighter climbs a flight of stairs 12.0 m high. How much work is required?

physics

Estimate the magnitude of the electric field in a cell membrane with a thickness of 8nm

Physics

What are the horizontal and vertical components of a cat's displacement when it has climbed 5 m directly up a tree ?

quantum physics

To what speed must an electron be accelerated for it to have a wavelenght of 3.0cm?

physics

newyorks 33-m tower oscilatesnin the wind with a period of 6.80s calculate the frequency

physics

What factors directly affect how much air drag an object experiences?

Physics

how to find the average velocity and speed for an entire postion time graph

physics

what type of energy does an object at rest, but raised above the ground have?

physics

in joule thomson effect,why the temperature of inversion leads to negative sign?

physics

How much work must be done to stop a 1200 kg car traveling at 135 km/h?

physics

How much work must be done to stop a 1150-kg car traveling at 145 km/h?

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