# Math/Physics

208,687 results, page 40

### 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?

### physics

which is more work pushing with 115N over 15 m or lifting 20N 10meters

### physics 101

A 72.9 kg man is standing on a frictionless ice surface when he throws a 1.6 kg book at 11 m/s.

### Physics

If you are wearing a watch, what energy changes are taking place in it right now?

### physics

Determine the net force necessary to give an object with a mass of 1.8 kg an acceleration of 5.7 m/s2.

### Physics

A projectile is shot straight up from the earth's surface at a speed of 1.20×104 KM/HR. How high does it go?

### Physics

A projectile is shot straight up from the earth's surface at a speed of 1.20×104 km/hr. How high does it go?

### physics

if a current of 4900A is applied to a copper wire what might happen to it? does it burn or what?

### physics

if an object has a mass of 615grams and a volume of 150cm3 is the density 5.86g/cm3

### Physics

What weight of water is required to fill a 80 gallon aquarium? The answer must be in kN

### physics

How center mass affects an arrows distance traveled (include source)

### physics

A fisherman's scale stretches 3.5 cm when a 2.1 kg fish hangs from it. What is the spring stiffness constant?

### PHYSICS RELLY QUICK QUESTION

is air resistnace negaitve because it opposes the motion?

### College physics

To what temperature will 7700 J of heat raise 3.0 kg of water that is initially at 10.0 degrees C?

### Physics

calculate the force between two identical charges of 1.0 x 10 exp -9 C separated by 1.0 Cm

### Physics

what is magnitude of the centripetal if the tangential speed of the car is 2.0m/s and the radius of the wheel is 83m

### physics

What is the resistance of a 40 watt light bulb if it is it to full brilliance by a current of .33amps?

### Physics

What term describes a force that causes an object to move in a circular path?

### physics

what is the relationship between independent and dependent variables in the experiment of snell's law

### physics

calculate the total area of the walls of a room 5m long 4m wide and 2.5m high

### Physics

How do you calculate error analysis? For example; 200 +- 5% Please explain if possible

### physics

If 30 N of force is exerted over an area of 20 m2, how much pressure is being applied?

### Physics

Wavw velocity is inversely proportional to what? (a) period (b) wavelength (c) amplitude (d) All of these

### college physics

What is the speed of light moving through a medium of index of refraction 2.45?

### AP Physics

A bicyclist pedaled at 10 m/s (meters per second) in 20 seconds. What distance was traveled?

### physics

does flux depends on electric field or just the enclosed charges only

### physics

Explain the conditions where the assumption of total mechanical energy of a system is conserved.

### physics

if a plane is flying 235 km/h and encounters west wind at 80 km/hr. What's its new velocity?

### physics

If 30 N of force is exerted over an area of 20 m2, how much pressure is being applied?

### Physics

at what velocity would a snowball melt before it hit the wall at 32 degrees?

### physics

A truck covers 40.0 m in 7.00 s while smoothly slowing down to a final velocity of 2.45 m/s.

### Physics

What does the value of the gradient of the graph (lg (g-field strength) against lg r(distance)) represent?

### physics

Determine the net force necessary to give an object with a mass of 2.1 kg an acceleration of 3.5 m/s2.

### college physics (bob again

would 2.68 meters be a reasonable height for the cliff?

### physics

what happens to the speed of an airplane with a 25 km/h tailwind pushing ahead from tail to front?

### physics- urgent

determine the estimated uncertainty for the area of circle with a radius of 10.45+-0.5cm

### physics

if a motorcycle accelerates from rest through the 400 m in 10 sec flat. What is its acceleration?

### physics

What is the acceleration of a vehicle that changes its velocity from 120 km/h to a dead stop in 7 s? Answer in km/h·s

### physics

A stone is thrown vertically upward with a speed of 14.0 m/s from the edge of a cliff 89.0 m high

### Physics

The sun has a raduis of 6.96*10^8m and a surface temperature of 5780K. How much power is radiating?

### physics

Can an adult male be rescued from a fall by tying a rope to a car's axle?

### physics

The speed of a train increased from 15 mi/hr to 25 mi/hr in a distance of 500 ft. Calculate the average acceleration in ft/s2.

### Physics

what do you call the source of an intense narrow beam of coherent monochromatic light?

### physics

3. A 5 N block slides down a 20° incline at constant speed. What is the frictional force?

### physics

3. A 5 N block slides down a 20° incline at constant speed. What is the frictional force?

### Physics

In what distance can a 25 gram bullet traveling at 250m/s be stopped by force of 5000N?

### physics

as a ball moves upwards in the air, by how much does its speed decrease each second?

### physics

as a ball moves upwards in the air, by how much does its speed decrease each second?

### physics

find the ratio of the intensities of two sounds if one is 8 dB louder than the other

### physics

How many revolutions will the car have gone through when the magnitude of its total acceleration is 2.80 m/s^2?

### physics

How many revolutions will the car have gone through when the magnitude of its total acceleration is 2.80 m/s^2?

### physics

spring has k=82 N/m use a graph to determine the work needed to stretch it from x= 3.8 cm to x=6.2 cm where x is the displacement

### Physics

What is the instantaneous speed in m/s at the 10 s mark for a car that accelerates at 3 m/s(squared) from a position of rest?

### physics

a satelitee breaks in half while in circular orbit about the earth

### physics

A car can go from 0 to 85 km/h in 10 s. If the engine delivered twice the power, how many seconds would it take?