Math/Physics

206,551 results, page 40

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?

physics

A car accelerates from rest at 7.9 m/s2. How much time does it need to attain a speed of 5 m/s?

Physics

How much heat is gained or lost when 200 grams of ice melts?

physics

what force is required to make an object of mass 500g accelerate at 4m/s2 (sqaured) ?

Physics

How many electrons in an atom can have each of the following quantum number or sublevel designations? 1. n=4, l=3

physics.

an object travels 219 meters with acceleration 6.43 m/s^2 over an interval of 2.86 seconds. What are Vi and Vf.

physics

If Michael Jordan has a vertical leap of 1.29 m, then what is his takeoff speed and his hang time?

Physics

How many calories of heat are gained to turn 10 grams of ice at 0 C into water at 0 C?

physics

a body is thrown downward with an initial speed of 20.0 m/s on earth. what is the acceleration of the object

physics

find the magnitude and direction of a combination of 48N east and 14N north.

physics

A long jumper jumps with the initial velocity of 12.0 m/s at an angle of 20 degrees. what is the displacement of x?

physics

Under what conditions will the projectile have the greatest velocity when it hits the ground?

Physics

How much work is required to stop an electron (m = 9.11*10^-31 kg) which is moving with a speed of 1.50×106 m/s?

physics

A constant 6.0N net force acts for 4.0 s on a 12 kg object. what is the objects change of velocity

Physics Help!!!

With the energy needed to warm up some amount of water from 26°C to 44°C, how high could you lift it?

physics

a free body diagram of a boy sliding down a hill on a sled

Physics

Please help! How long would it take (in seconds) to travel 1 km at a speed of 100 km/h?

physics

a 27,000kb freight train starting at 12m/s then speeds up to 45 m/s in 35 seconds. what is the acceleration?

Physics

How much work must be done to stop a 970 kg car traveling at 115 km/h?

physics

if a 700-kg piano us lifted 4.0 meters in 14 seconds, how much power is developed

physics

if a 700-kg piano us lifted 4.0 meters in 14 seconds, how much power is developed

Physics

Question contains pictures: h t t p : / / g o o . g l / M H k y 1 (delete the spaces between the characters for the URL)

physics

What is the acceleration of a 23 kg pail of cement that is pulled upward (not sideways!) with a force of 300 N?

physics

How much work must be done to stop a 1040 kg car traveling at 111 km/h?

Physics

A bicycle with tires .064 m in diameter travels 8.1 km. 1. How many revolutions do the wheels make?

physics

A pendulum is 1.0 m long and is drawn aside 30.0* and let go. Find the velocity at the lowest point.

Physics

Write each number in scientific notation: 1) 15.01 ans. Is it 15.01 x 10 minus to the power of 2?? Am i wrong?

physics

An RC car has a power rating of 12 W and a mass of 1.0 kg. How long would it take to reach 5 m/s ? thanks.

Physics

Calculate the hang time of an athlete who jumps a vertical distance of 0.75 meter.

physics

An object accelerates uniformly from rest at a rate of 2 m/s2 for 3 s and then 5 m/s2 for 15 s. Find its final velocity?

physics

What force is needed to accelerate a child on a sled with the total mass of 43kg at 1.5m/s

physics

What would be the resulting acceleration if a 7.0 kg shot put was launched with a force of 140 N?

physics

If you throw a cigarette out a car window that is moving at 10 mph where will it land

physics

If you throw a cigarette out a car window that is moving at 10 mph where will it land

Physics

An automobile driver puts on the brakes and decelerates from 30.0 m/s to 0 in 10.0 s. What distance does the car travel?

physics

two identical objects move with speeds of 5.0 m s and 25.0 m s. What is the ratio of their kinetic energies?

physics

what happens to the force of frictionif the coefficient of friction was reduced by one thrid

Physics

What is the volume of 3.25 moles of a gas at a temperature of 115 K and a pressure of 275 kPa?

Physics

During the pre-industrial era, what were the Carbon Dioxide levels like?

Physics

What is the amount of CO2 added to the earth's atmosphere each year from fossil fuels?

physics

Why does a 10 gram bullet have more momentum traveling at 200m/s than at 20m/s?

physics

the rate at which position changes with time is called acceleration. true or false?

physics

the rate at which position changes with time is called acceleration. true or false?

physics

the rate at which position changes with time is called acceleration. true or false?

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