# Math/Physics

206,551 results, page 99

### physics

When an electron jumps from the 4th orbit to the 2nd orbit which series line does it get?

### Physics

A car is initially traveling at 20 m/s when it accelerates to 35 m/s in a time of 5 seconds. What is the acceleration of the car in m/s^2?

### Physics

What is the fundamental frequency for a 58 cm banjo string if the speed of waves on the string is 450 m/s?

### Physics

A spring vibrates at 8Hz,when a mass of 0.82kg is hung from it.What is the spring constant?

### physics

What is the fundamental frequency for a 60 cm banjo string if the speed of waves on the string is 480 m/s?

### Physics

At a certain distance from the center of the Earth, a 4.00-kg object has a weight of 1.95 N. Calculate this distance.

### physics 1

a car is being pulled out of the mud by two two ropes

### PHYSICS

SILICON DENSITY 1.05G/CM3 1MTR x 1MTR x4MM HEIGHT

### physics

How much work can a 22 kW car engine do in 60 seconds if It is 30% efficient It is 100% efficient

### physics

An 21.0 , 12.0 , and 5.0 resistor are connected in series with an emf source. The current in the 12.0 resistor is measured to be 4.00 A.

### physics

A plane traveling at 260m/s has a speed of Match 0.80. What is the speed of sound in the air

### physics

Give an example of an object that moves in a direction opposite the direction of its acceleration

### Physics

Give an example of an object that moves with constant acceleration and constant speed.

### physics

A lead ball has a volume of 94.3 cm3 at 19.3°C. What is the change in volume when its temperature changes to 34.3°C?

### Physics

A lead ball has a volume of 94.3 cm3 at 19.3°C. What is the change in volume when its temperature changes to 34.3°C?

### Physics Diploma Q?

a photon drops from -22 eV to a ground state of -89.2 eV. the frequency the photon emits is? [1.62]

### Physics

which do you prefer to use, an instrument which is more precise or one which is more accurate? WHY? thanks po! :)

### 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

### Physics

vertically up at 28m/sec, gravity 9.8 meters/sec^2 = what is max. height

### Physics

Add (9.3x10^3) + (9.3x10^4) + (0.011x10^6) using correct significant figures?

### Physics

An arrow is shot horizontally from a cliff at 15 m/s land 30 m away. How high is the cliff?

### Physics

An arrow is shot horizontally from a cliff at 15 m/s land 30 m away. How high is the cliff?

### physics

If an 8N force is applied to a wall for 2 minutes and the wall does not move, how much work is done?

### physics

list the contact and non contact forces in mathematics. What is the cold welding?

### physics

from equation t equal to root x+3 find velocity and acceleration t equal to 1second

### physics

from equation t equal to root x+3 find velocity and acceleration t equal to 1second

### physics

Why should we add a the value 273 to change a celcius value in to kelvin.?

### physics

A ball is dropped from a height of 18.6 m. What is the velocity of the ball the instant it hits the ground?

### physics

How do I find the acceleration on a velocity time graph when the graph has an irregular shape.

### physics

A football is kicked 66.6 meters. If the ball is in the air 5.39 s, with what initial velocity was it kicked?

### Physics

How many calories will take to convert 5 grams of 90C degree water to 0 C degree?

### physics

If Joe weighs 100N on the moon how much will Joe weigh on earth? N & kg

### physics

What is the magnitude of displacement for a person that walks 6.0-km North-East, 4.0-km East, and 6.0-km South?

### physics

What is the magnitude of displacement for a person that walks 6.0-km North-East, 4.0-km East, and 6.0-km South?

### physics

A soccer ball kicked with a force of 14.8 N accelerates at 6 m/s2 to the right. What is the mass of the ball?

### physics

an object accelerates at 0.8m/s2 when a resultant force of 200n is acting on it what is the mass of the object

### physics

what is acceleration of an object over a 4second period if its starting velocity is 8 m/s and it velocity is 20 m/s?

### Physics

a spring with a spring constant k= 1340 N/m is oriented find the rate of compression

### physics

The pendulum on a cuckoo clock is 5.00 cm long. (a) Determine the period of this pendulum. (b) What is its frequency?

### Physics

What is the equivalent resistance of two resistors of 2 ohm and 3 ohm connected in parallel?

### physics

find the magnitude of vector by scalar and vector A= ? + 4j +4k B= ? + 2j + 3k if the angle between them 15 degrees.

### physics

The index of refraction of a certain type of glass is 1.58 what is the speed of light in the glass ?

### physics

It takes 2.5 J of energy to stretch a helical spring by 15 cm. Determine the spring constant.

### physics

Haloke does 179 J of work lifting himself 0.296 m. What is Haloke's mass?

### physics

A car is moving at 37 m/s. It slams on its brakes and comes to a stop in 22 m. What was the acceleration from the brakes?

### Physics

An arrow was shot vertically upward at a velocity of 50.0 m/s. What was its velocity after 2.00 seconds?

### Physics

What force is needed to give a 0.25-kg arrow an acceleration of 196 m/s2? A. 0.25 N B. 49 N C. 196 N D. 748 N

### Physics

A car traveling at 20 m/s accelerates at 7 m/s2 for 3 sec. How fast is it now traveling? Please help!

### physics

A wave travels 750 meters in 5 minutes. Its wavelength is 16.1 meters. What is its period?

### physics

An object has a charge of −2.4 ìC. How many electrons must be removed so that the charge becomes +2.8 ìC

### physics capacitor

What voltage is required to store 8.0 x 10-5 C of charge on the plates of a 6.1-μF capacitor?

### physics

The temperature of the air outside on a cool morning is 11„aC.What is this temperature on the Kelvin scale?

### physics

The temperature of the air outside on a cool morning is 11„aC.What is this temperature on the Kelvin scale?

### Physics

Calculate the pH of a solution obtained by mixing 100cm3 of 0.1M HCl and 100cm3 of 0.2M NaOH

### Physics

Calculate the pH of a solution obtained by mixing 100cm3 of 0.1M HCl and 100cm3 of 0.2M NaOH

### Physics

A cheetah can run with a speed of 29 m/s. Determine the distance travelled by a running cheetah in 8.6 s

### Physics

When a light passes from glass to air, which of the following is correct for the path of the light?

### physics

A basketball player can leap upward 0.69 m. What is his initial velocity at the start of the leap?

### Physics: Pressure Problem

What is the total pressure at the bottom of a lake at a depth of 38m?

### physics

Bob is driving 25 m/s and he turns a corner with a radius of 37 m. How much is Bob accelerating?

### Physics

A 1200.0-kg car speeds up from 16.0 m/s to 20.0 m/s. How much work was done on the car to increase its speed?

### Physics

The temperature of an object is raised by 90ºC. This is equivalent to what increase in its absolute temperature?

### 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.

### PHYSICS, please help quickly

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!!!!