Math/Physics

210,322 results, page 62

physics

the angle between two forces of 32 AND (neutrons) and 47 N is 36 degrees. Find the magnitude of the resultant force

Physics

Find the pressure exerted by a waterbed with dimensions of 2 m x 2 m which is 30 cm thick. (hint: use density of water)

Physics

A proton with a kinetic energy of 4.7×10−16J moves perpendicular to a magnetic field of 0.25T .

physics

If one walks straight up a 10 degree incline, what is the height achieved after walking 10 kilometers ?

physics

If a 1500 kg car stopped from an in 5.6 seconds with an applied force of 5000 N, how fast was it initially traveling?

physics

Find the total force necessary to give a rocket of mass 25,000 slugs an acceleration of 28.0 ft/s2.

Physics help please

Calculate the allowed wavelengths for the emission of a photon initially in the n=3 state in a hydrogen atom

Physics, Help!! URGENT!!!

A sprinter must average 24.0 mi/h to win a 100-m dash in 9.30 s. What is his wavelength at this speed if his mass is 84.5 kg?

physics

A meteoroid is speeding through the atmosphere, traveling east at 15.5 km/s while descending at a rate of 10.6 km/s. What is its speed, in km/s?

physics

An 80 kg skateboarder going 10 m / s is launched nearly vertically off a ramp as shown. Approximately how high does he go?

physics

a fire hose held near the ground shoots water at a speed of 6.4m/s, at what angle should

Physics

Katie kicks a football at a 52 degree angle and a velocity of 31 m/s. At what times will it be 10 meters off the ground?

physics

A aluminum wire has a diameter and uniform electric field of imposed along its entire length

physics

A crate is given an initial speed of 5.0m/s up the 22.5∘ plane shown in (Figure 1) . Assume μk = 0.12.

Physics

You swing a 2.40kg stone in a circle, using the full length of a thin 60.0cm rope.

Physics

Determine Centripetal Acceleration acting on the person standing at the equator? (the radius of earth is given)

physics

How fast will a roller coaster, with a mass of 1200 kg, be moving at the bottom of an 18 meter tall hill?

Physics

Explain how you would determine how much error there is between a vector addition and the real results.

Physics Science

How many kilocalories of heat are required to melt 20.0 kg of ice at 0°C? Okay so the given is m=20.0kg Ti=0°C HeatFusionIce=80 kcal/kg

physics

Find the radius of a spherical asteroid that has a density of 4600 kg/m3 and an acceleration due to gravity of 0.11 m/s2 at the surface. km

physics

How much heat (in kJ) will it take to bring 56 kg of ice at -8°C to dry steam? Answer to 3 significant figures

ap physics

a 37.4-kg traffic light is supported by two wires prove you answer applying newtons law

physics

Fall time under g is sqrt 2h/g. Can someone give a derivation from the equations of motion please? Thanks.

So what about this one bob? Physics

Which of the following is closer to a guess? hypothesis<<<<< law question theory

physics

A ball strikes against the floor and returns with double velocity.In which type of collision is it possible?

Physics

How much force is required to accelerate a 1500kg car to a speed of 17m/s in a distance of 45m? Thank you.

physics

a horse pull a barge with a force at an angle of 30¡ã to the horizontal for a distance of 20km . find the work done.

physics

An ambulance is going away from me @ 40mph with a siren @ 1000Hz.Will I heat a higher or lower frequency

physics please help

the potential difference across a load is 9V. explain what this means in more fundamental terms.

Physics

A 50 cm diameter wheel rotates through 25 radians. How do I figure out the amount of distance it will move?

physics

Can the gravitational potential energy of a baseball ever be negative? Yes No Explain without using a formula.

Physics

A weight suspended from a spring is seen to bob up and down over a distance of 11 cm twice each second.

physics

An object falls a distance h from rest. If it travels 0.45h in the last 1.00 s, find the time and the height of its fall.

physics

would someone in a lift feel lighter or heavier as it accelerated upwards? explain your answer.

physics

a tsunami originating in japan has a wavelength of 10^5 m and a period of 10 mins. how long does it take to travel 8000km?

Physics

What is the maximum total force exerted on a 71 kg astronaut by her seat during the launch of the Space Shuttle?

Physics

Initial velocity is 21 m/s, the angle is 40 degrees, 20 meters away from the wall. How long is the ball in the air for?

physics

Calculate the extension that would be produced by a 20N force if 15N extends a spring by 3cm

physics

with what velocity must a ball be thrown in order to achieve the height of 50 ft.? and how long will it stay in the air?

Physics

Leroy, who has a mass of 72 kg, is skateboarding at 5.9 m/s when he smacks into a brick wall and comes to a dead stop in 0.2 s.

physics

What is the relationship between the coefficient of friction and the time that it takes the object to reach the bottom of the ramp?

physics

how much work is done by the upward force of your head on a 50 N rock that you carry horizontally across a 10 m room?

physics

A construction crane's cable lifts a 49.5-kg box upward with an acceleration of 1.30 m/s2. Find the tension in the rope. N

Physics

A volleyball is served at an angle of 35 degrees with an initial speed of 5 m/s. What is the maximum height reached by the ball?

Physics

A football is kicked at an angle of 40 degrees with an initial speed of 7 m/s. What is the horizontal distance traveled by the ball?

physics

What design aspects of the snowmobile make it particulary useful for travel over ice and snow?

physics

a force of 10N acts on an object and raises its speed from 0 to 5 m/s in 10s.calcuate the average power.

physics

In a uniform magnetic field, can an Amperian loop ever have a non-zero value

physics

A wheel has turned through 120 revs in 10 s after starting. find the angular acceleration.

physics

A solid of relative density 1.25 is found to weigh 12g in water find its weight in air

Physics

A dragster's top acceleration is 60m/s^2. If it accelerates for 3 seconds from the starting line, how fast will it be going?

physics

a body projected with velocity 30m/s an angle 30¡ã with horizontal maximum height attained by he object is.........?

physics

At 7.15 cents per kilowatt-hour, what does it cost to leave a 75.0W light burning 24.0 hours a day?

physics

A 25HP electric motor turning a 1800 RPM will produce how many foot pounds of torque?

Physics

1. A cannon ball M = 10.0kg with V = 2.4×102m/s is broken into 2 parts, if m1 = 6.4kg with angle 37° and m2 with 53°, what is the magnitude of v1 and v2?

PHYSICS

Tin melts at 232 under standard atmospheric pressure. Express this temperature in kelvin

physics

a cyclist moves around equilateral triangle6kn/h10km/h,12km/hfind average speed?

PHYSICS

Determine the resulting temperature when 1kg of ice at 0 Degree celcius is mixed with 9kg of water.

physics

A boy drops a mango from a tree it falls without rebound wat happens to its momentum

Physics

An arrow is shot horizontally with a speed of 20 m/s from the top of a tower 60 m high .The time to reach the ground will be???????

Physics

Steam of mass 11.0 g at 100°C is added to 126.7 g of ice at 0.00°C. Find the final temperature of the system.

physics

Mechanical energy is the difference between the kinetic and potential energies of an object. true or false?

physics

a person covers a distance of 31 km and displacement 3 kms and time 25.5 min calcuclate average velocity

Physics

What is the tension in a 1-meter string that is spinning a 0.5-kg rock in a horizontal circle 3 times per second?

physics

You have a mass of 60 kg and run up some stairs that are 5 m high in 6 seconds. How much power did you produce?

PHYSICS

'show that a 2.5m length of wire with cross section area 0f 1.0mm and resistance of 0.75ohms has a resistivity o f 3.0 ×10-7'

Physics

If a man weighs 900 N on the earth, what would he weigh on jupiter, where acceleration due to gravity is 25.9 m/s^2?

physics

damon,reiny,steve,ms sue.plz get a solution 2 my question please itz urgent!!!

physics

light from the sun travels 1.5x10km to reach the earth .how long does it journey take in minutes?

physics

A bicycl rider starts from rest and moves with uniform acceration of 1.5m\s^2 it is velocity reachs 7.5m\s of a distance .......

physics

A 2000-kg car starts from rest and gains a velocity of 20 m/s in 5 /0s. What force was applied on it? What formula/s will I use?!

Physics

From what height must water fall from a dam to strike the margine waves w/ a speed 30m/s.

PHYSICS

what is the central acceleration of an automobile driving at 40 kph on a circular tracks having radius of 30m?

PHYSICS

Calculate the centripetal force on a 2100 kg carrounding a curve of 175 m radius at a speed of 60 kph.

physics

Results for: In An Ideal Transformer, The Voltage And Current Are 220V,2A And Those In Secondry Are 2000V, IA. The Value Of I Is?

physics

How much heat is needed to convert 1.0kg ice at -5celsius to steam at 105 celsius?

physics-heat transfer-urgent pls

Calculate the energy absorbed when 8.5g of ice is melted at 0 Celsius. thank you

Physics

What are three different kinds of automatic switching devices? What are the conditions that cause the on/off action of the switch?

PHYSICS

compute for the density of a brake fluid used in a car which has a volume of 600cm^3 and a mass of 100 g?

physics

Suppose the horizontal sweep of an oscilloscope takes 80ms how many cycles of a 100 Hz wave will be shown?

Physics

A race car moving at 35 m/s is uniformly slowed to a stop in 50 s. Find 1) acceleration, and 2) stopping distance.

PHYSICS

What is the force of attraction between two masses 5kg and 8kg at a distance of 60cm apart.

physics

Power applied to a particle varies with time as P=(3t^2-2t+1)W. Find the change in kinetic energy between t=1s and 4s.

Physics

An object initially at rest experiences an acceleration of 9.8 m/s^2. How much time will it take to achieve a velocity of 58 m/s?

physics

a body travels from rest with acceleration 8ms find its velocity when it has covered a distance of 100m

AP Physics

What is the minimum work needed to push a 1025 kg car 290 m up a 17.5° incline with zero friction?

Physics

mike is skiing downhill at a 25 degree angle. if his weight is 350N assuming there is no friction what is his acceleration

PHYSICS

TWO FORCES F1 AND F2 ARE ACTING AT RIGHT ANGLE TO EACH OTHER FIND THE EXPRESSION FOR THE RESULTANT FORCE?

physics

a 4200 kg helicopter accelerate upward 3m/s^2. lift force is exerted by the air on the propellers?(g=10m/s^2)

Physics

How fast must a plane fly at a latitude of 41.9° so that the sun stands still relative to the passengers?

Physics

How many coulombs pass through a wire that carries a current of 3.2 A for 5.0 h? I=Q/t Q=It Q=3.2*5*60 Q=960 I am told this is not the correct answer.

Physics

What would be the average velocity of an object falling 1.25m from the rest, just as it strikes the ground?

physics

an object takes 0.35 seconds to hit the floor, what height did it fall from? is the way to calculate it h = gt^2 / 2 so would it be = h = .5 * 9.8 * 0.35^2

Physics

Wat direction will the Electric Field Lines be in a parallel plate capacitor containing a dielectric ?

physics

2)if a curved of radius 50m is banked at 30 degree will a car travelling at 60 km/hr along the curve will safe?

physics

A stone is projected vertically upward with a speed of 20 m/s. a. What is its velocity at the end of 2s? b. What is the height reacted after 2s?

Physics

Calculate the speed with which a swimmer enters water if she slides down a frictionless ramp that is 2.6 m high

Physics

How long it takes a car at 20m/s to come to a stop without friction, obstacles, or breaks ?

Physics

Find the range at an arrow that leaves a bow at 45 m/s at an angle of 50 degrees above the horizontal level.

Physics

What is the magnitude of the momentum of the 0.057-kg tennis ball when it travels at a speed of 29 m/s? Earth is the frame of reference.

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