# Physics!

73,661 results, page 92

### physics

A 35,000 kg locomotive is moving at a velocity of 11 m/s east. What is the magnitude of the locomotive's momentum?

### Physics

Calculate the water pressure at the bottom of the 110--high water tower

### Physics

Help! Calculate the water pressure at the bottom of the 110--high water tower

### Physics

A sound wave has a frequency of 686 Hz in air and a wavelength of 0.50 m. What is the temperature of the air?

### physics

what will the volume of a gas at 309K if its volume at 215K is 3.42 L? Assume the pressure is constant

### Physics

How long is the sound wave if frequency is 320 Hz? Speed of sound =340 m/s

### Physics

Take an average 82 kg pet frog, what's it weight on earth? What is it's weight on the moon?

### physics

A faint sound with an intensity of 10 -9 W/m2 is measured by an intensity-level meter. What will the reading be in dB?

### Physics

When u type on a computer keyboard, do u do work on the computer keys? Pleasee explain

### physics

a person travels 1.5 m east then 2 m south then finally 4.5 m east what is the total displacement

### physics

How is a parent generation of a fern different from the generation that comes before or after it?

### Introduction to Physics

What is the electric charge on the calcium ion in calcium chloride, CaCl2?

### Physics Mechanics

An object experiences an impulse o 43.78 N-s for a time period of 12.52 s. what is the force of the object?

### Physics Mechanics

An object experiences an impulse o 43.78 N-s for a time period of 12.52 s. what is the force of the object?

### Physics

Which is greater, an acceleration from 30 km/h to 40 km/h or an acceleration from 85 km/h to 93 km/h if both occur during the same time?

### Physics

A car rounds a curve with a radius of 25 m at a speed 30 m/s. What is the centripetal acceleration of the car?

### Physics

what can be the source of error in lab of forces equilibrium,force board lab?

### Physics

what can be the source of error in lab of forces equilibrium,force board lab?

### physics

0.5 mol of salt (NaCl) is dissolved in 4.5 mol of water. What is the increase in entropy

### Physics

1) what does the y intercept on a force vs acceleration graph represent? 2)what is the relationship of mass and acceleration?

### Physics

Calculate the water pressure at the bottom of the 100-m-high water tower

### physics

A capacitor has circular plates of radius \(r = 12\,cm\) that are a distance \(d = 0.1\,cm\) apart. What is the capacitance of this capacitor in \(F\)?

### physics

You walk 51 m to the north, then turn 30° to your right and walk another 45 m. How far are you from where you originally started?

### PHYSICS

The tension in the cable supporting a 4900N elevator is 3800N. What is the acceleration of the elevator?

### Physics

If a person lifts a 21.9 kg bucket very slowly from a well and does 8.3 kJ of work on the bucket, how deep is the well?

### Physics

Find the tension T2 of the box hanging from the rope if 1 = 25°, 2 = 65°, T1 = 60.58 newtons, and W = 143.4 newtons.

The velocity of an object increases from 5.0 m/s to 15 m/s in 2.0 s. What is the average acceleration of the object? -10 m/s2 -5.0 m/s2 +5.0 m/s2 +10 m/s2

### Physics

What is one advantage and one disadvantage of using a ramp? Explain in detail.

### physics

A 3kg ball is accelerated from rest to a speed of 10 m/s. What is the ball's change in momentum?

### physics

A heat engine receives 7.0 x 10^3 J of heat and loses 3.0 x 10^3 J in each cycle. What is the efficiency? 1-30% 2-43% 3-57% 4-70% 5-100%

### Physics

If the spherical ball is negatively charged.How the mass of the sphere or ball get effected?

### Physics

If you try to lift a 2 x 10 plank by applying 25 N force but plank does not move did you do any work?

### physics

Given the atmospheric pressure is 10 5pa what is a gauge pressure of 0.55 mpa equal to?

### Physics

The acceleration due to gravity on Earth is 9.80 m/s2. If the mass of a dog is 40.0 kg, what is the weight of the dog?

### Physics

Hello, I need an example of something that travels 7 m/sec or 10 m/sec. Any ideas?

### physics

What force exists between a positive charge of 2.6 x 10-6 C and a negative charge of 4.2 x 10-5 C if they are separated by 8 cm?

### physics

If h is 5m and the mass takes 3 s to move the distance d when starting from rest, what is the distance d? PLEASEEEEEE!!!!

### physics

What is the acceleration of an object if it takes 10 seconds to increase its velocity by 40m/seconds?

### physics

The vectors sum of two vectors of magnitude 10units and 15units can never be

### physics

a car travel 100 km at speed of 60 km /h. Calculate the average speed of the journey.

### Physics 2

if the average speed of light in a medium is 2.2x10E8 m/s, what is the medium’s index of refraction?

### physics

Initial sources of energy used to operate machines were __________ and __________.

### Physics

If the thickness of the probe in the direction of B is 1.97 mm, calculate the charge-carrier density (each of charge e).

### Physics

If a car is accelerating, is the car's velocity constant. Please sentence explanation.

### physics

Starting from rest, the car is going 29 ft/s (20 mi/h) at the end of 5.0 s. What is the car's average acceleration in ft/s2?

### Physics

If the acceleration of this block is 5m/s/s, what is the coiefficient of kinetic friction? 20kg at 60 degrees. _ _ _ _ -------------60 degrees

### Physics

Calculate the megnatic force on static electron of megnatic field of 1.4 Tesla????

### physics

A bicyclist accelerates –0.87 m/s2 during a 3.8 s interval. What is the change in the velocity of the bicyclist and bicycle?

### Physics

A particle of mass 2 kg has an initial velocity of (4.5i + 3.5j) m/s. It is acted on by a force (5i -2j) N for 2 s. What is its final velocity?

### physics

a force of 3.00 N acts through a distance of 12 m in the direction of the force. find the work done

### physics

If tank of 10m height is filled half what will be pressure at bottom of tank

### physics

Calculate the mass of the air in a 5 m ✕ 3 m ✕ 2.5 m room, assuming that it is at 1 atm and 19°C.

### Physics

An athlete runs 2.76 km east, then turns south and runs another 0.85 km. What is the magnitude of his displacement?

### physics 2

to increse intensity o f a wave by a factor of 50, by what factor should the amplitude be increased?

### physics

A shuffleboard disk is accelerated at a 9.7m/s^2 from rest to a speed of 6.0m/s. What distance does the disk travel?

### Physics

How to determine the work done on the object with a FCosTheta(Y axis)-Displacement(X axis) graph.

### physics

Why do you think the wave aspect of light was discovered earlier than its particle aspect?

### mathematical physics

Solve the initial value problem. d^2x/dt^2+2dx/dt-3x =0, x(2π) = 1, x(2π) = 13

### Physics

If the relative density of a metal is 19 what will be the mass of 20cm^3 of the metal when immersed in water.

Find out if the force is conservative or non-conservative if the work done is W = x^2.y - x.z^3 - z.

### physics

the bob of a simple pendulum has a mass of 0.03kg.determine the weight of the bob

### physics

The magnetic potential in the region in the given X v=2xy. find magnetic field at (1m, 1m)

### University physics

Hi. Can someone please help me on how to perform error analysis on the formulas: r = 1/C, with an error on C.

### Physics

A car with a velocity of 21m/s is accelerated uniformly at arate of 1.6m/s for 6.8s. What is its final velocity?

### physics

Sound wave with greater amplitude travels farther than that with smaller amplitude?

### Physics

A wire of length 2.00m and radius 1.0mm is stretched modulus for the wire

### physics dimension

if the gravitational force F is given by F=GM1M2/r^2 derive the dimension of the constant G.

### Physics

Two forsec of 5N and 7N act on an object. What are the maximum and minimum of the two forces

### Physics

The density of lead is 11.35g.cm.what will be the mass in kilograms of a 2dm sample of lead ?

### Physics

The Young's modulus of the material of a wire is 6 x 10^12 N/m2 and there is no transverse strain. The modulus of rigidity is

### physics

a 50 kg astronautejects 100 g of gas from his propulsion pistol at a velocity of 50 m/s. what is his resulting velocity?

### physics

A bicycle has 67.0 cm diameter wheels turning at 11.2 rev/s. How fast is the bicycle moving?

### physics

A 50 kg sign is hanging from the ceiling .calculate the tension in the ropes?30 degree and 20 degree

### Physics

The momentum of a 12 kg dog racing to greet its owner is 37 kg m/s. What is the dog’s speed? is Pb-mbvb=(12)(37)=?

### Physics

What is the average useful power output of a person who does 5.90×106 J of useful work in 7.90 h?

### Physics

A Boy Of 20KG Climbs 10m.Take 10m/s. Calculate the workdone,

### PHYSICS

A wave with a frequency of 90.0 Hz travels through steel with a wavelength of 3.46 m. What is the speed of this wave?

### Physics

What is the wavelength of a 26250 Hz tone in air? The speed of sound in air is 340 m/s.

### physics

a car travels 4km in 3 minutes.find the speed of car in cms-1

### Physics

A 23.5 N force acts on a body for duration of 12.0 s. Compute the impulse that the body receives.

### physics

A spring extends 10 cm whena mass of 100g is attached to it, when is the spring constant

### physics

a motorcyclist drives from a to B with a uniform speed of 30km/h find its average speed

### Physics

Show that vector A=_6i^+9j^_12k^ and vector B=2i^_3j^+4k^ are parellel to each other

### physics

a body is projected horizontally from height of 78.4 m with a velocity 10 m/s . its velocity after 3 sec

### physics

if the weight of the stone was 2 N and the upthrust was 1 N what weight would the force meter show?

### Physics

Ho can I calculate the volume of a CD that is 0.75 mm thick has outer diameter of 128 mm and inner diameter of 15 mm.

### Physics

What acceleration is imparted to a football when the player kicked it with a force of 25 N? Mass of a football = 0.40 kg.

### Physics

You take 4 measurements of the mass of a ball: 2.96 kg, 3.32 kg, 3.31 kg, 3.17 kg. What is the uncertainty of the average mass to 95% confidence? CL=95% N=4 CC=1.84

### Physics

A certain spring stores 35.0 J of potential energy when it is compressed by 9.2 cm. What is the spring constant?

### physics

A car travels 20 km southwards and then another 30 westwards. What is the displacement of the car from its initial position?

### Physics

Two bodies with equal momentum have KE in the ratio 5:4. What will be the ratio of their masses be?

### Physics

How much energy W needed to compress a spring from 15 cm to 10 cm if the constant of the spring is 150 N/m.

### physics 1

Q4= The unit of mass in S.I. unit is? a. kilogram b. gram c. tonne d. quintal e. newton

### Physics

In projectile motion, what angle would the same distance as a 45 degree angle?

### physics

a car is slowing down while it is moving west. the direction on the car is ?

### Pressure in Physics

Calculate the pressure of the body with mass 60kg and area of 10m2.

### Physics

state the finctions of double wall,silver wall and cork sttoper -

### Physics

The resistance of 10 ft length of a 20 mil iron wire is 1.8 ohms. What is the resistivity of the iron?