# Math/Physics

206,302 results, page 56

### 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!

### physics

A car accelerates from rest at 7.9 m/s2. How much time does it need to attain a speed of 5 m/s? Answer in units of s.

### Physics

An object is thrown vertically upward with a speed of 31.8 m/s. How long does it take to reach this highest altitude?

### physics

Which bug experienced the greatest accelera- tion? 1. Their acceleration is same. 2. Unable to determine. 3. the VW 4. the insect

### college physics

Is it possible for a frictional force to increase the mechanical energy of a system? If so, give examples.

### physics

If you throw a ball straight upward at a speed of 11 m/s, How long will it take to return to its starting point?

### physics

If you throw a ball straight upward at a speed of 11 m/s, How long will it take to return to its starting point?

### physics

If you throw a ball straight upward at a speed of 11 m/s, How long will it take to return to its starting point?

### physics

how much heat is required to change 400g of ice at -20c into steam at 120c

### Physics

a woman on a bridge 75 high sees a raft floating at a constant speed on the river below.

### physics

vector b has x,y, and z components of 4.0, 6.0, and 3.0 units, respectively. Calculate the magnitude of b and the angles that b makes with the coordinate axes.

### physics-non calc

a hammer was released from rest vi=0m/s taking 1.12 seconds to fall 1 meter. How do you solve that

### PHYSICS

How fast is 65 mph in meters per seconds? (i just need the answer) thanks very much

### physics

An object is dropped onto the moon (gm = 5 ft/sec2). How long does it take to fall from an elevation of 250 ft.?

### physics

How long would it take for a stone to fall 250m traveling at a speed of 10m/s squared?

### physics

A 1600 kg car travels at a speed of 10.5 m/s. What is its kinetic energy? Assume that air resistance is negligible.

### Physics

What is the frequency of an EM wave emitted most strongly by a glowing element on a stove with temperature 1500 K?

### physics

If a man weighs 853.0 N on Earth, what would he weigh on Jupiter where the acceleration due to gravity is 25.4 m/s2?

### physics

If a man weighs 853.0 N on Earth, what would he weigh on Jupiter where the acceleration due to gravity is 25.4 m/s2?

### physics

What is the radial acceleration of an object at a point 25 meters from the axis of rotation that has a radius and a period of .22 seconds?

### physics PLEASE HELP

how do you rearrange this equation weight=T1sin57+[T1cos57/cos23.5]xsin23.5 when you're trying to isolate T1?????

### physics

What gravitational force do the two protons in the helium nucleus exert on each other? Their separation is approximately 1.0 {\rm fm}.

### physics

A rock is dropped from a height of 130.0 meters. With what velocity does it land? How long does it take to fall?

### Physics

A 3200kg helicopter must accelerate up at 1.0m/s^2. What minimum lift do the rotors need to produce? Thanks for answering!

### physics

How much spring elasticity would be needed to make a 50 pound child jump higher

### Physics

With the energy needed to warm up some amount of water from 40C to 64C, how high could you lift it?

### physics

show that in the limit that the radius of the sphere goes to zero to kept the magnetic moment constant

### physics

(a) What is the torque about the origin on a jar of jalapeno peppers located at coordinates (1.0 m, -4.0 m, 2.0 m) due to force F1 = (-3.0 N) + (2.0 N) + (-5.0 N) ?

### physics

what is the symbolic expression for the wavelength ë of a photon in terms of its energy E, Planck's constant h, and the speed of light c.

### physics

2. A hockey player is skating in a straight line at 1.5 m/s. He then increases his speed to 7 m/s in 3 s. What is his average acceleration during this 3 s?

### physics

In the Melde's string apparatus, why there is no standing wave in the segment between the pulley and mass hanger?

### Physics

A wave with frequency 12.2Hz and amplitude 47.7 mm moves in the positive x direction with a speed of 8.9 m/s. What is the waves wavelength?

### physics

If you tried to smuggle gold bricks by filling your backpack, whose dimensions are 66 cm 18 cm 15 cm, what would its mass be

### physics

How would you find the coefficient of kinetic friction if you're given a weight of 627 N and theta=45 degrees?

### physics

A wave with frequency 11.3Hz and amplitude 48.1 mm moves in the positive x direction with a speed of 5.6 m/s. What is the waves wavelength?

### physics

A wave with frequency 11.3Hz and amplitude 48.1 mm moves in the positive x direction with a speed of 5.6 m/s. What is the waves wavelength?

### need physics help

d=2.1 a=? vi=0 and t=.60 and i have to use the formula d=vit+1/2at^2, how do i do this? can you please show work so i can understand.

### physics

in deep space a gun is fired; how much force will be required to keep the bullet going?

### physicS

What is the longest wavelength for standing waves on a 238.0 cm long string that is fixed at both ends?

### physics

What is the longest wavelength for standing waves on a 238.0 cm long string that is fixed at both ends?

### physics

A 2.2 kg purse is dropped from 55 m above before reaching the ground with a velocity of 25 m/s. What was the average air resistance.

### Physics

1. Could a horizontal axis of rotation be used satisfactorily in an experiment uniform circular motion? Explain

### physics

hummingbird beats wings with frequency of 80.0 Hz. What is period of bird's flaps? I know T = 1/f , but what is the label/units for the answer?

### physics

a child twirls a yo-yo about in a horizontal circle. The yo-yo has a mass of 0.20 kg and is attached to a string 0.8 m long. what is the velocity of the yo-yo? thanks!

### Physics

What would the volume of commercial butane be equal to given an air flow of 0.6 cubic metres/hr?

### physics

Calculate the period of a ball tied to a string of length 0.3 m making 1.9 revolutions every second.

### physics

A 0.150-kg ball, moving in the positive direction at 12 m/s, is acted on by the impulse of 4N*s what is the balls final velocity

### physics

A 1300 sports car accelerates from rest to 95KM/H in 7.0S .What is the average power delivered by the engine?

### Physics

A 200kg motorcycle is driving in a circular path at 1 rev per 5 seconds and the circle has r=12m

### Physics

A standing wave has wavenumber 200 rad/m. What is the distance between two adjacent nodes.

### physics

How much potential energy does a 20-kg barrel have when it is in the truck whose floor is 5.0 m above the ground?

### physics

A tennis ball is thrown directly upward with an initial speed of 25 m/s. What is its velocity in m/s when it hits the ground?

### physics

How far must the point charges = 7.20 and = -25.0 be separated for the electric potential energy of the system to be -130 ?