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 ?

Physics

If I have an originaloscilation frequency of .64 and amplitued of 15 What would doubling the mass of the object do to the freqency and amplitude?

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