# Physics!

74,730 results, page 40-
## Physics

Two organ pipes are imitating a sound of 12 Hz, one of them is 12 m long. What is the length of the other pipe? -
## physics

A car accelerates from rest at 2.57 m/s2. What is the velocity at the end of 5.4 s? Answer in units of m/s -
## physics

How much time will elapse between seeing lightening and hearing the thunder happening 8000 m from you? -
## physics

what is net force acting on the ball after attaning terminal velosity? -
## physics

How much time will elapse between seeing lightening and hearing the thunder happening 8000 m from you? -
## Physics

explain the input energy and out put energies of two kitchen machines -
## Physics

Given 435 in^3 of nitrogen at 1340psi (absolute) at 72.0°F. Find the volume at 1150psi at 45.0°F. -
## physics

Find the height from which you would have to drop a ball so that it would have a speed of 6.4 m/s just before it hits the ground. -
## Physics 221

How much charge flows through a 12 –V battery when a 2.0 mF capacitor is connected across its terminals? -
## Physics

The gravitational force between two electrons that are 0.98 m apart is 5.64 10-71 N. Find the mass of an electron. (Use G = 6.67 10-11 N·m2/kg2.) Do you use F=G(m1*m2)/r^2??? -
## 7th grade Physics

Give 2 examples of force pairs when you do your homework? -
## Physics 2

the microwave protion of the spectrum has wavelengths ranging from 1 mm to 1 m. find the corresponding frequency? -
## physics

The gravitational force between two electrons that are 0.98 m apart is 5.64 10-71 N. Find the mass of an electron. (Use G = 6.67 10-11 N·m2/kg2.) Do you use F=G(m1*m2)/r^2??? -
## physics

a car moving through road what is the direction of force and surface of acting -
## college physics

the speed of light is about 3.00 x 10^8 m/s. convert this figure to miles per hour -
## Physics pls help

At what depth in water is the pressure equal to 2m atmosphere. Explain how -
## physics

find the acceleration of a bicycle slowing fron 3m/s to a stop in 5 seconds? -
## physics

A rock is dropped from a 196-m-high cliff. How long does it take to fall (a) the first 98.0 m and (b) the second 98.0 m? -
## physics

how to show with the help of a model that resistivity of a conductor increases with increase in temperature? -
## physics

Determine the percent error in this approximate value. (There are 365.24 days in one year.) -
## physics

explain the input energy and out put energies of two kitchen machines -
## physics

what is the kinetic energy of a 200 g bullet travelling at a velocity of 400 m/s? -
## physics

a boy drops a mango from a tree it falls without rebound what happens to it's momentum -
## Physics

How much energy (in cal) is required to raise the temperature of 15.0g of isopropyl alcohol from 10.0 C to 25.0 C? -
## physics

A rock is dropped from a 196-m-high cliff. How long does it take to fall (a) the first 98.0 m and (b) the second 98.0 m? -
## physics

true or false an object with a mass of 9.0 kg has an acceleration of 3 m/s. the force acting on it is 3n -
## Physics

Find the attractive force bet a 50 kg girl and a 60 kg boy, if they stand 2.00 m apart. -
## physics

If body is rotating 30r.p.m in clockwise what is angular velocity and it direction -
## physics

The x-component of an electric field vector E = (200 N/C, 45 deg) is ___N/C. -
## physics

A sports car accelerates from rest to 86km/h\, km/h in 5.2s\, s . What is its average acceleration in m/s2{\rm{m/s}}^2. -
## physics

If Zulfiqar fold this colored paper as shown in the image, which cube will he get? A C B D -
## Physics

A car speeds up from 12 m/s to 20 m/s in 6.4s.If its mass is 1200 kg,what force must its engine provide ? -
## Physics

A 2200. Kg vehicle is traveling at 26 m/s what is the force needed to stop it in 21 seconds? -
## 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

a football is kicked in 36 meter per second and 30 degree angle with land.After 1 second,how much it's velocity will ? -
## physics

Determine the normal force for a laundry basket with a mass of 4.3 kg in each of the following situations -
## physics

TWO R WHEN CONNECTED IN PARALLEL GIVE RESULTANT VALUE BECOMES 9 OHM CALCULATE VALUE OF REESISTIVITY -
## physics

how does temperature affect the time it takes to reach thermal equilibrium? -
## Physics/Cars

Does the mass of the car matter when driving on the road? When skidding? -
## physics

what is the pressure exerted on the ground by a cube which has a weight of 600n and a side of 1m -
## Physics Classical Mechanics

Hi Enjoy, Thanks. I got the acceleration right and the Force wrong. Need help on Question 2. -
## Physics

Runners in the 100-m dash use starting blocks. Explain what this device does. PLEASE HELP. -
## Physics

calculate the magnitude and direction of the resultant of two vectors 5N and 7N inclined at an angle 30° to each other -
## physics

what is your age in seconds? this is a conversion problem. someone help please with all the multiplication and division... very confused. THANK YOU -
## physics

A carton of juice remains intact even after you have sucked out all the drink from it. please explain -
## physics

What is the momentum of a proton travelling at v = 0.95c in the x-direction in the reference frame? -
## Physics

Finding of radius of capillary tube without knowing surface tension -
## physics

what law is it when gravity pushes down on a rocket that is accelerating at a rate of 270 km/h -
## AP Physics

A car slows down from 18 m/s to rest in a distance of 91 m. What was its acceleration, assumed constant? -
## Physics

I've read all my resource materials and looked for outside resources already and i can't find an equation for this. I would appreciate any help -
## physics

A bus that is traveling at 31.0 km/h, speeds up at a constant rate of 3.7 m/s2. What velocity does it reach 6.8 s later? -
## 11th grade Physics

How many current paths are there in a parallel circuit connection? -
## physics

explain the input energy and out put energies of two kitchen machines -
## 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

If the electron experiences a force of 5.6 x 10-6 N, how large is the field between the deflection plates? -
## Physics

A charge q1=7.8x10^-6 C is placed at the origin. q2=-3.4x10^-6 C is placed at y=-1 m, x=2 m. q3=-9.2x10^-6 C is placed at y=4 m. What is the total force on q1? On q3? -
## PHYSICS

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

how the frequency of sound produced will change in an aluminium string of 15 cm length -
## physics

how do you find the verticle component of velocity of a projectile just as it strikes the ground? -
## physics ! HELP PLEASE !!!!1

what are the methods of computing the veolicty of a particle in one- dimensona motion from a graph ? -
## physics

Explain why voltage doesn't change when connecting resistance in series -
## physics

Explain how the pitch of the roaring sound relates to the length of the tube. -
## physics

What net force is needed to accelerate a 1.6 × 103kg automobile forward at 2.0 m/s2? -
## physics

What angle does the tangent to the curve y(x)=sin^2(x/9)+16sin(x/9) at x=9\pi make with the x-axis? -
## physics

can anyone give me a site that "best explains" about Rotational motion/Angular. thanks a lot.. :) -
## physics

A meteoroid is speeding through the atmosphere, traveling east at 24.5 km/s while descending at 11.6 km/s. What is its speed, in km/s? -
## physics

An electron travels 3.75 m in 6.41 × 10−8 s. How fast does it travel? Answer in units of cm/s -
## physics

the air pressure in the tyres of a car increases during driving.Explain. -
## Physics

What is the wavelength of visible light emit- ted at 4.2 × 108 MHz? -
## 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 (Kinematics Check)

What is the average velocity of a dropped brick that falls 4.0 m? vi = 4.0 m/s vf = 0 m/s a = 9.81 m/s^2 t = vf-vi / a t = -4/9.81 t = 0.41 s v = d/t v = 4.0/0.41 v = 9.81 m/s^2 <---------- -
## physics

A dart is thrown horizontally toward X at 30 m/s as shown. It hits Y 0.29 s later. The distance XY in centimeters is: -
## physics

a go cart starts at rest and accelerates to 40 m/s in 200m what is the acceleration of the cyclist? -
## Grade 11 Physics

Rearrange the equation : d=v2t - 1/2at(squared) to solve for a -
## 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

A hypothetical planet has a mass 1.55 times that of Earth, but the same radius. What is g near its surface? -
## physics

At what distance (in m) from a 3.8 mC charge is the electric potential equal to 32 V? (k = 9 x 109 Nm2/C2) -
## physics

A bus slows down uniformly from 65.0 km/h to 0 km/h in 20.0 s. How far does it travel before stopping? Answer in units of m -
## 11th grade Physics

How many current paths are there in a series circuit connection? -
## physics

An object is thrown vertically upward with a speed of 19.1 m/s. How high does it rise? -
## physics

a 15 kg bucket is raised to paint a ladder with an acceleration of 3 m/s.^2 what is the tension in the rope? -
## Physics

Two resistors 3 Ù and 6 Ù are connected in parallel across a 6 V battery. What is the current flow through the 3 Ù resistor? -
## Physics

Would electrons be ejected from aluminum if the incident violet light has a wavelength of 4.00 x 10-7 m? -
## physics

A magnetic field is uniform in a region of radius 10 cm, and increasing at 0.02 Tesla/second. -
## Physics

An airplane has an airspeed of 100km/h north. if there is a 30km/h headwind what is its groundspeed -
## Physics sci & eng

A force of 5.8 N acts on a 16 kg body initially at rest. -
## physics

what are the methods of computing the veolicty of a particle in one- dimensona motion from a graph ? -
## physics

a cannon fire a .453 kg shell with initial velocity vi=9m/s in the direction 50 -
## physics

An object is dropped from a height H. During the final second of its fall, it traverses a distance of 57.8 m. What was H? -
## Physics

If the gravitational force between the electron (9.11 ✕ 10-31 kg) and the proton (1.67 ✕ 10-27 kg) in a hydrogen atom is 1.06 ✕ 10-47 N, how far apart are the two particles? -
## PHYSICS

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

Name 3 physical (physics) occurances that happen within a roller coaster ride? -
## Gr 9 Science - physics

If all 3 resistors in a series 12V circuit are the same, what will the voltage be across resistor no. 3? -
## Physics

Does angular acceleration on a spinning disk increase centrifugal force? -
## Physics

How long is Mayra, a ballerina, in the air when she leaps striaght up with a speed of 1.23 m/s? -
## Physics

How long is Mayra, a ballerina, in the air when she leaps straight up with a speed of 1.23 m/s? -
## physics

Calulate the amount of substance io 120g of trioxocarbonate (iv)ion,co2 -
## Physics

A rocket is fired with 9.37 km/hr, find the maximum altitude. (no air resistance) -
## physics

why does the filament of a bulb does not melt though it heats more than 3400 degree celcius -
## physics

In one dimension ,how does energy depend on size of region if an electron is confined there ??