Math/Physics

206,302 results, page 51

physics

why one cannot find the north pole of the earth using only a simple compass

physics

what device could use th earth's magnetic felds to produce energy and how it would work?

PHYSICS ASAP!

A Football is kicked 66.6 meters in 5.39 seconds. What was the initial velocity? Magnitude and Direction

Physics

Janetjumpsoffahighdivingplatformwith ahorizontalvelocityof2.96m/sandlandsin thewater2.8slater. Howhighistheplatform ?Theacceleration ofgravityis9.8m/s2.

Physics

you throw a ball upwards in the air at a velocity of 80m/s how fast will it be moving at 3 sec?

Physics

Contrast the metric units of distance, time, and speed. Describe the relationship between them.

Physics

2. Contrast the metric units of distance, time, and speed. Describe the relationship between them.

physics

2. Contrast the metric units of distance, time, and speed. Describe the relationship between them.

Physics

2. Contrast the metric units of distance, time, and speed. Describe the relationship between them.

Physics

2. Contrast the metric units of distance, time, and speed. Describe the relationship between them.

Physics

2. Contrast the metric units of distance, time, and speed. Describe the relationship between them.

physics

If a race car completes a 4mi oval track in 73.2s, what is the average speed in units of mi/h?

physics

If a race car completes a 4mi oval track in 73.2s, what is the average speed in units of mi/h?

physics

If a race car completes a 4mi oval track in 73.2s, what is the average speed in units of mi/h?

science-physics

What is the formula to calculate the speed of the electron the has a mass of 0.910000000000000000000000000000 kg and a radius of 0.5290000000000 m?

physics

determine the energy of a photon radio wave electromagnetic radiation. i know which formula to use 6.64*10^-34 what

Physics Help Please!

A microwave oven operates at 2.80GHz . What is the wavelength of the radiation produced by this appliance?

Physics

When dealing with circular motion; a string with the length of .4m is being spun horizontally, is the radius .2m?

physics

A car travels in a straight line for 4.8 h at a constant speed of 57 km/h . What is its acceleration? Answer in units of m/s

Physics

A cable lifts a 1060-kg elevator at a constant velocity for a distance of 39 m. What is the work done by each of the following?

Physics

A cable lifts a 1060-kg elevator at a constant velocity for a distance of 39 m. What is the work done by each of the following?

physics

Wind gusts create ripples on the ocean that have a wavelength of 5.00 cm and propagate at 2.00 m/s. What is their frequency?

physics

How high will an object rise if it is projected upward at a 45 degree angle and an initial velocity of 50 m/s?

physics

How high will an object rise if it is projected upward at a 45 degree angle and an initial velocity of 50 m/s?

physics

what is the reasonable temperature (Th anh Tc) for an ideal (caront) refrigerator that have coefficient of performance of 13

physics

a 747 airliner reaches its takeoff speed of 170 in 35.0 .what is the magnitude of its average acceleration

physics

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

physics

Calculate the speed of an 7.6×104 kg airliner with a kinetic energy of 1.2 × 109 J. Answer in units of m/s

physics

what is the force per meter on a wire carrying 7.5A current when perpendicular to a 0.70T field?

physics

Rank, from smallest to largest, the pressures in the tank of motionless fluid shown in the figure.

physics

What is the wavelength associated with a golf ball of mass 45 g driven off the tee with a velocity of 30 ms-1.

Physics

A 155 N force is applied to the end of a 40 cm wrench at a angle of 45 degrees to the handle. What is the torque?

physics

Your friend says his remote control car travels at a velocity of 1.5 m/s. What is wrong with that statement

physics question

find the force exerted by proton and the electron in a hydrogen atom they are 5.0 X 10^-19 coulomb

physics

A 1.00 x 10^3 kg sports car accelerates from rest to 25.0 m/s in 7.50 s. What is the average power output of the automobile engine?

physics

What must be the magnitude of the force of static friction between the surface and the bottom of the crate?

physics

a ball is thrown vertically upward at a speed of 45 m/s. how long does it take to return to the ground?

Physics

You have a circular table. You measured its radius to be 10 cm with an uncertainty dr =+/- 3mm. The area would be A +/- a cm^2. a. What is A? b. What is a?

Physics

You have a circular table. You measured its radius to be 10 cm with an uncertainty dr =+/- 3mm. The area would be A +/- a cm^2. a. What is A? b. What is a?

PHYSICS

how far will a 1000kg car travel in 10 sec if it is accelerated from rest by a force of 5000N

physics

Determine the net force needed to cause a 1310kg sports car to accelerate from 0 - 28.6m/s[fwd] in 5.6 s

physics

A plane cruising at 251 m/s accelerates at25 m/s2 for 9 s.What is its final velocity?Answer in units of m/s

Basic Physics

If a swimming pool has dimensions; 28.2 5m x 10.0m x 2.30m, when it is full of water, what is the force on the bottom ?

physics

A spring has a force constant of 70000 N/m. How far must it be stretched for its potential energy to be 21 J?

physics

what will happen to the bone structure if earth becomes more dense than its actual density?

physics 11

By how much would 1200 W kettle, which is 72% efficient raise the temperature of 0.60 kg of water in 3.0 min?

physics

what has no beginning and no end. it is also considered as the medium for light in einstein's theory of relativity

physics

An argon atom has a mass of 6.64 x 10 kg has 5.5x108 joules of kinetic energy. At What velocity is it moving?

physics

calculate the friction force of an object? if weight=19600,vi=30ms-1,vf=0ms-1 and S=100m.

physics

if a car moving 180km/h reduces to 72km, what is the percentage change in kinetic energy?

Basic Physics

What is the force of gravity between two spheres that have a mass of 8 kg and are separated by 27 m?

physics

find the force if f between charges of +100mc -50mc located 50cm a part?

physics

find the force if f between charges of 100mc -50mc located 50cm a part?

physics

what is the kinetic energy of a 3 kg 20 cm diameter bowling ball with a linear velocity of 4m/s? (rolling and spinning)

physics

the magnitude of the tongue produced by a 3.0n force applied to a door at a perpendicular distance of 0.25 m from the hinge

Physics

How many joules would be required to raise the temperature of 20g of ice at oC to water at15C?

physics

An equipotential surface that surrounds a point charge q has a potential of 516 V and an area of 1.01 m2. Determine q

Physics

A jeep has a speed of 50 m/s at a given instant and 10 m/s later. fin its retardation, assuming it to be constant.

physics

A jet travels at 435 m/s. How long does it take to travel 253 m? Answer in units of s

Physics

How much work is needed to stop a 20g bullet moving with a speed of 150ms-1

Physics

Find the length of a simple pendulum that completes 16.0 oscillations in 52.0 s. CAN YOU PLEASE EXPLAIN SPECIFICALLY , THANK YOU!

physics

what is meant by the change go temperature of 1 degree celcius on the scale of a plantinum resistance thermometer

physics

How long does it take light to travel through a 3.3 mm-thick piece of window glass?

physics

a frieght train rolls at the same speed but has twice as much mass its momentum is

physics

What magnitude point charge creates a 13000 N/C electric field at a distance of 0.220 m?

Physics

A downward force of 5.1 N is exerted on a -7.3 mcirco C charge. What is the magnitude of the electric field at this point?

Physics

What is the electrostatic force between two ballons, each having 0.000005 C of charge, when they are 0.5 m apart?

Physics

A person stands 2.0 m away from the reflecting surface of a plane mirror. What are the image characteristics?

physics

If a protonand an electron are released when they 2.0X10^-10m apart, find the initial accelerationof each of them. I know a=ke^2/mr^2 k = 8.99 x 10^9 e = 1.6 x 10^-19 r = 2.0x 10^-10 so what is the m ????

physics

An equipotential surface that surrounds a point charge q has a potential of 590 V and an area of 1.20 m2. Determine q.

Physics

what is the average force needed to stop a car (1000kg) traveling 28m/s in 55m?

physics

the force required to maintain an object at a constant velocity in free space is eaqual to?

Physics

What can we say about the force of an object when the mass increases and acceleration remains constant?

physics

what is the height of the ball if the bottom of the swing is zero, speed is 2.8m/sec, 9.81 acceleration of gravity

physics

When a transverse wave on a string is reflectred from the free end the phase change produced is-------

physics

What would the gravitational potential energy be if the bucket were raised six times as high?

physics

Calculate a person's hang time if he moves horizontally 2 m during a 1.39 m high-jump.

Physics

How can we find the resultant force if the mass and SPEED are given?? Give me the formula please!!

physics

A particle starts moving with acceleration 2 m/s2. distance travelled by it in 5th half second is..??

physics

Consider a concave mirror with radius R. An upright object is placed in between the interval R/2 and R. R

physics

a 125 cm long string has a mass 2.0g and it is stretched with a tension of 7.0 IN between fixed support

Physics

The magnification of an object 2km tall where placed in 150m in front of a plane mirror is ?

Physics

Calculate the work required to be done to stop a car of 1500kg moving with a velocity of 60km/hr?

conceptional physics

If a 35cm radius tire spins at a rate of 72 rad/s what is the rotating speed?

Physics "scientists"

* JJ Thomson * a) How does his experiment of cathode ray tube relates to electrostatics? >> PLEASE HELP ME!! :( :)

Physics

So if mgh=1/2mv^2 and I'm solving for v is my answer going to be v= squareroot of 2* (gravity) 9.8m/s^2* (height) 3.67m?

physics

2. Determine the theoretical yield of aspirin if you started with 2.500 grams of salicylic acid?

physics

problem E2_2 Strain, boundary conditions, displacement and elongation: Part I Plz help.

Physics

How long does it take to deliver 315 J of energy to 0.850 cm^2 of a wall that it hits perpendicularly?

physics

You can paddle at 4.5 km/h and the river is flowing at 3 km/h. How far downstream will you be in 44 min? Answer in units of km

physics

How long does it take light to travel through a 2.7 mm-thick piece of window glass?

Physics

2. How many oxygen atoms are indicated on the right side of this balanced chemical equation? 4 Cr(s) + 3 O2( g)h2 Cr2O3( g)

Physics

A fuel has heat of combustion equal to 30 kJ / g. How much energy is released when 5 kilograms are oxidized?

Physics

Which of the following is the correct relationship between the electric field strength and the potential difference?

physics

describe with the aid of a fully labelled diagram the features and their uses of a bicycle pump

physics

A car covers a distance of x,while moving at 54km/1 in 15sec.Find the value of x

physics

What is the radius of an automobile tire that makes a complete turn in 0.1 sec and has a linear speed of 24.0 m/s?

Physics

What is the circular force of a 150 g yoyo swung around on a 1.00 m string at a velocity of 5.0 m/s (in Newtons)?

physics

what is meant by liquefaction of gases? can hydrogen be liquefied by compression at the temperature of liquid air?

physics

a polar satellite is launched at 850 km above Earth .find its orbital speed.

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