# Math/Physics

208,687 results, page 56

### Physics

How much potential energy does Tim, with mass 60.0 kg, gain when he climbs a gymnasium rope a distance of 3.5m?

### physics

Three balls A, B, and C, with masses of 3 kg, 1 kg, and 1 kg, respectively, are connected by massless rods. What are the coordinates of the center of mass?

### Physics

If you had to straighten out a refracted ray that went through a lens with a focal length of +15 cm, what could you do?

### astronomy/physics

determine the mass of the earth from the known period (365.25 days) and the distance of the moon (3.84X10^3 km)

### physics

A force of 291.0 N is used to push a 140 kg mass 30.0 m horizontally in 3.00 s. Calculate the power developed in kW.

### Physics

A yo-yo has a string length of 0.200 m What is the slowest speed at which you can spin it to keep it in a fixed path? What is this, and how do you find it? Thanks

### physics

determine the velocity and kinetic energy of neutrons having de broglie wave length 1 angstrom

### physics

List four effects that can be observed that demonstrate light travels in straight lines. Does anybody know the answer??

### PHYSICS

How is it possible to have an instrument like a bugle that has a fixed-air column play a melody?

### college physics

an automobile traveling at 25.0 km/h along straight,level road accelerates to 65.0 km/h in 6.00s what is the acceleration

### Physics

Which force acts opposite of the direction of displacement of the object? I think it would be friction...but could it be spring?

### physics

What is the longest wavelength of light that will emit electrons from a metal whose work function is 3.10eV?

### physics

using ideas of torque and center of gravity explain why a ball rolls down a hill

### Physics

What are some of the safety considerations and technologies used in designing a safe roller coaster ride?

### physics

What initial mass of 235U is required to operate a 650-MW reactor for 1 year? Assume 40% efficiency.

### Physics

Who was Isaac Newton? Write a brief paragraph about his life and work (include a bibliography)

### Physics

If a tern travels 3.20 x 10^4 km south in 122 days, what is its average velocity in kilometers per day?

### Physics

If a tern travels 3.20 x 10^4 km south in 122 days, what is its average velocity in kilometers per day?

### Physics

How do you know when to use cos or sin or tan when they give you angles in the question to find tension or force?

### physics

Who does more work if your friends pushes a something four times further than you with half the force?

### Physics

A 5 N force directed to the west acts on an object for 2.0 seconds. What is the change in momentum of the oject? Would it be 5 X 2?

### physics

Rubidium forms the postive Rb+ Is this ion larger or smaller then the neutral atom? Explain PLEASE

### physics

How do the acceleration vectors differ on opposite sides of the path for un iform circular motion? How are they the same?

### physics

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

### physics

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

### physics

An airplane travels at 144 km/h toward the northeast. What is the northern component of its ve- locity? Answer in units of km/h.

### physics

A _____________ volt battery will increase the potential energy of 0.005 coulombs of charge by 29.5 joules.

### physics

A light bulb with resistance of _____________ Omega draws 900 mA from a 110 V household circuit.

### Physics

a projectile is launched with an initial velocity of 60 m/s at an angle of 30 degrees above the horizontal. how far does it travel?

### physics

calculate the force of a 300,00 kg jumbo jet that is accelerating 0.4m/square just before takeoff

### GENERAL PHYSICS

Two long, parallel wires separated by 90 each carry currents of 2.0 in a horizontal direction.

### physics

If wind blows at 44 m/s over a house, what is the net force on the roof if its area is 180 m^2 and is flat?

### physics

A spring has k = 88 N/m. Use a graph to determine the work needed to stretch it from x = 3.6 cm to x = 5.6 cm, where x is the displacement from its unstretched length.

### physics

an ant walk 1 meter west and then 3 meters north whats is the ants direction in degrees

### physics

an ant walk 1 meter west and then 3 meters north whats is the ants direction in degrees

### physics

An object falls a distance h from rest. If it travels 0.43h in the last 1.00 s, find (a) the time and (b) the height of its fall.

### physics

estimate the rotational kinetic energy of earth, assuming it to be a solid sphere of uniform density

### physics

Calculate the force of gravity on a spacecraft 12800 km above the earth's surface if its mass is 700 kg.

### physics

The vertical leap of a professional NBA athlete is reported to be 47.3 inches. What is his takeoff speed? in m/s? is this kinematics??

### physics

A bike travels at a constant speed of 4.0 m/s for 5.0 s. How far does it go? GIVEN: V = 4.0 m/s t = 5.0 s Would you use this equation? D= Vit + 1/2 at^2

### Physics

How far does a plane fly in 15 s while its velocity is changing from 145 m/s to 75 m/s at a uniform rate of acceleration?

### Physics

What potential energy does a 60.0-kg gymnast acquire in climbing 5.00 m up a vertical pole? GIVEN: mg = 60 h/d = 5.00 m PE = mgh PE = (60)(5.00) PE = 300 J

### physics

What vector represents the displacement of a person who walks 15 km at 45 degrees south of east, then 30 km due west?

### physics

Correct the following statement: The racing car rounds the turn at a constant velocity of 145 km/hr.

### Physics

As one exhales, what change in energy takes place between the diaphragm and the air in the lungs?

### college physics

A delivery truck travels 10 km north, 18 km east, and 29 km south. What is its final displacement (in km) from the origin?

### College Physics

To move 5.0 C of charge from one electrode to the other, a 12-V battery must do how much work? 60 J 5.0 C 12 J 12 V 60 W

### physics

for some reason, choice 6 was incorrect when i tried it sorry to keep bothering you about it drwls

### physics

how to calcula distance of a object in free fall if only the time it reaches the ground is given

### physics

1) At what speed must a 75 kg basketball player leave the ground if he is to jump a vertical distance of 1.2 m? (ans: 4.8 m/s)

### physics

How much work must be done to bring three electrons from a great distance apart to 5.5×10−10 m

### Physics

A 1.15 kg block slides down a 19.0 m long 29.0° incline at constant velocity. How much work is done by friction?

### physics

need help decomposing theses vectors to x and y 52.9 meters at 19 degrees rectangular cor-ordinate system

### physics

two charged objects carry a negative charge of 2*10c. calculate their distance apart

### Physics

If two resistors are connected in parallel, I know that they share the same voltage but how would you determine their current?

### Physics

On a bright sunny day, the irradiance on the surface of the ocean is 1.6*10^17 photons cm^-2 s^-1. If k=0.02 m^-1 a)How much light is left at 15 m? b)at 75 m?

### physics

Find the voltage increase when 12 J of work is done to push a 0.0013 C charge into an electric field.

### 11th grade Physics

What happens when a conductor is wired in parallel with the bulb? Is the swich open or closed?

### 11th grade Physics

What happens when an insulator is wired in parallel with the bulb? is the swich open or closed?

### 11th grade Physics

What resistance would produce a current of 120 amps from a 6-volt battery?

### 11th grade Physics

What is the current produced by a 9-volt battery flowing through a resistance of 2 x 10^-4 ohms?

### 11th grade Physics

What is the potential difference if a resistance of 25 ohms produce a current of 250 amperes?

### physics

Three charges of 5 x 10^(-6) C are placed on the vertices of an equilateral triangle of 10cm. Calculate force on each charge.

### physics

What is the total mechanical energy of a 20 kg owl flying at 5.0 m/s through the air at a height of 25 m above the ground?

### physics

Using gauss's law,calculate the electricfield at a distance r=20cm from a point charge q=4microcoulomb.

### physics

The force produced by Earth's gravity on a 70 kg man standing on the moon is more than 0.5 N True or False?

### physics

What is the temperature of an ideal gas whose molecules have an average translational kinetic energy of 3.90 10-20 J? K

### Physics

Who were two historical figures (scientists) that contributed to the process of mantle convection and plate movement?

### physics

What is the strength of the magnetic field a distance of 1 meter from a wire carrying a current of 1 A? equation: B=MoI ------ 2(pi)r Mo=4(pi)x 10^-7 I=1 A How do I know what r is?

### physics

a particle of mass 0.3kg vibrates with a period of 2 sec. if its amplitude is 0.5m what is its maximum kinetic energy

### 10th grade

how can i make an easy working model in physics for class 10 holiday home work

### physics

x-rays produced in an x ray machine can have a frequency of 1.4*10^14 what is the wave length of these electromagnetic waves in nm?

### Physics

The hamiltonian shows you that the energy levels are purtered by the electric fields.The form of the matrix,you can see?

### physics

Two masses are hanging over a frictionless, massless pulley as shown blocks_pulley_aMass m1 is 5.0 kg and mass m2 is 7.0 kg

### physics

if the wheel on a car accelerates from rest at a constant rate of 1.5rev/s, how fast will it be turning after 3s.

### Physics

Two vectors A and B have magnitude A = 3.00 and B = 3.00. Their vector product is A x B= -5.00k + 2.00i. What is the angle between A and B?

### Physics

Two vectors A. and B have magnitude A = 3.00 and B = 3.00. Their vector product is A x B= -5.00k + 2.00i. What is the angle between A and B?

### physics

calculate the maximum increase in photon wavelength that can occur during Compton Scattering. (answer in pm).

### Physics

Calculate the power output of a 1.5 fly as it walks straight up a windowpane at 2.2 P=__W (2 sig figs)

### Physics

Calculate the power output of a 1.5 fly as it walks straight up a windowpane at 2.2 2 sig figs P= ___W

### physics

1. How much does it cost to operate a 75 W lamp continuously for 1 week if the power utility rate is 7/kWh?

### college physics

Hi given you have a half-wave rectifier and you know alternating current = VSin2(pi)fT, how do you calculate V(o)t?

### physics

Strictly speaking, you weigh a tiny bit less when you are in the lobby of a massive skyscraper than you do at home. Why is this so?

### Physics

The winner of the Kentucky Derby runs the 1.25-mile race in 2 minutes, 2.0 s.What's the horse's average speed in {\rm m}/{\rm s}?

### physics

What are the dangers associated with electricity in your home? What can be done to limit or prevent the possibilities of dying or getting hurt?

### physics

What are the dangers associated with electricity in your home? What can be done to limit or prevent the possibilities of dying or getting hurt?

### physics

Consider a particle with initial velocity that has magnitude 12.0 m/s and is directed 60.0 degrees above the negative x axis.

### physics

If a car rolls gently(vo=0) off a vertical cliff, how long does it take to reach 85km/h?

### physics

A truck has to travel at what speed to stay underneath an airplane traveling at 105 kg/h at 25% angle to the ground.

### physics

What is the magnitude of the displacement of a car that travels half a lap along a circle that has a radius of 170m ?

### Physics

What is the difference between 110, 220 and 440 volts. How does amperage play a role with voltage

### ap physics

You measure the radius of a wheel to be 4.16 cm. If you multiply by 2 to get the diameter, should you write the result as 8 cm or as 8.32 cm? Justify your answer.

### physics

a car is going 8 m/s goes over a cliff 78.4 meters high. How far from the base does it land?

### physics

You throw a ball downward from a window at a speed of 1.9 m/s. How fast will it be moving when it hits the sidewalk 2.2 m below?

### physics

You throw a ball upward from a window at a speed of 2.9 m/s. How fast will it be moving when it hits the sidewalk 2.2 m below?

### physics

city of K is 27 km north of I. Head west at 11:00 in the morning and arrive at 8:30 in the evening. What is my average speed and velocity

### Physics

Can someone please tell me how to calculate the percent of error for a set of data points? thanks so much!

### Physics

Can someone please tell me how to calculate the percent of error for a set of data points? thanks so much!

### PHYSICS

Can someone please tell me how to calculate the percent of error for a set of data points? thanks so much!