Math/Physics

211,502 results, page 66

Physics

What is gravitational force of a 65kg person that is on the surface of the moon has a mass of 7.348 x 10^22kg and radius of 1731km?

physics

the mathematical form of the thin-lens equation predicts that a graph of 1/p vs 1/q should have a slope of -1, explain?

physics

a 5kg suitcase slides 2m down a frictionless ramp incline at 45 degress. How fast is it going at the bottom?

physics

The boats have a mass of 30 kg. The stopping splash lasted about 1.5 s. What acceleration is required to stop the flume?

physics

calculate the free electrons of a copper wire having a 0.064 inches diameter and 1000 ft. long?

Physics

A golf ball is chipped at an angle of 49 degrees and with a speed of 8.5 m/s. How far does it travel to the nearest tenth of a meter?

physics

When a satellite moves in a circular orbit around a planet, does it have constant momentum, velocity or acceleration?

physics

how can i plan and design a lab to investigate how electric current causes contraction of a spiral wire spring

physics

what is the formula to calculate the following: how much force is needed to move a 10 pound block 10 feet in 8 seconds>

Physics

How much energy in kilocalories is expended against gravity alone by a 75- kg man climbing 1500 m up a mountain?

Physics

the relationship between linear speed and net force is inverse right? can someone explain why to me please.

physics

A cylindrical container 1.7 tall contains mercury to a certain depth, . The rest of the cylinder is filled with water

physics

A proton of mass mp = 1.67 x 10-27 kg and charge +e = 1.60 x 10-19 C is accelerated from rest through an electric potential of 400 kV. What is its final velocity?

physics

What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 7.9 m/s when going down a slope for 7.4 s?

physics

3. If a man does 300 j or work by pushing a table 2.0 m across the room, what was the magnitude of the applied horizontal force?

physics

A motorbike accelerates uniformly at 0.6m.s for 10s. If it covers a distance of 500m. During this time, what was its initial velocity?

Physics

How fast (in rpm ) must a centrifuge rotate if a particle 8.00 from the axis of rotation is to experience an acceleration of 117000g's?

physics

An egg falls from rest atop a 15-m tall tree. Show that it takes 1.7s for it to hit the ground below.

physics

Stand on a 200 meter high building and, at noon, drop a ball. At what time does it hit the ground

physics

Through the process of doing work, what allows energy to move between the external world and the system? the result of what???

Physics

How long will it take a 1080 W motor to lift a 330kg piano to a sixth-story window 16.0m above?

Physics

How long will it take a 1080 W motor to lift a 330kg piano to a sixth-story window 16.0m above?

Physics

How long will it take a 1080 W motor to lift a 330kg piano to a sixth-story window 16.0m above?

physics

A rock is thrown upward at an angle of 50 degrees with respect to the horizon. As it rises, its vertical component of velocity does what?

physics

A shotputter accelerates a 7.3kg shot from rest to 14m/s. If this motion takes 2.0s what average power was developed?

physics

How long will it take a 1280 W motor to lift a 345 kg piano to a sixth-story window 19.0 m above?

Physics

conical pendulum is formed by attaching a 0.200 ball to a 1.00 -long. It has a radius of 40.0cm . What is the tension in the string?

Physics

conical pendulum is formed by attaching a 0.200 ball to a 1.00 -long. It has a radius of 40.0cm . What is the tension in the string?

Physics

conical pendulum is formed by attaching a 0.200 ball to a 1.00 -long. It has a radius of 40.0cm . What is the tension in the string?

Physics

Calculate the net charge on a substance con- sisting of a combination of 1.9 × 10^13 protons and 3.9 × 10^13 electrons. Answer in units of C.

Physics

Calculate the net charge on a substance con- sisting of a combination of 1.9 × 10^13 protons and 3.9 × 10^13 electrons. Answer in units of C.

Physics

Calculate the net charge on a substance con- sisting of a combination of 1.9 × 10^13 protons and 3.9 × 10^13 electrons. Answer in units of C.

Physics

The established value for the speed of light in a vacuum is 299 792 458 m/s. What is the order-of-magnitude of this number?

Physics

Suppose a cube that measures 0.020 m on each side were made of water. Find its volume, mass, and weight.

physics

explain the following,using the idea of molecules where possible : A.lakes are more likely to freeze than the sea

Physics

A hot plate has a resistance of 50 Ω. If the current flowing through it is 2.4 A, then the potential difference across the device is:

Physics

A car accelerates at a constant rate from 13m/s to 25m/s in 6.0seconds. What was its acceleration? How far did it travel in this time?

Physics

A car accelerates at a constant rate from 13m/s to 25m/s in 6.0seconds. What was its acceleration? How far did it travel in this time?

Physics

Find the amount of heat required to convert 10g of ice to steam at 110 degree Celsius.

physics

what is the force in newtons acting on a 4.0kg package of nails that falls off a roof and is on its way to the ground

physics

A hollow, thin-shelled ball of mass rolls along a horizontal surface with a translational speed of .

physics

I'm trying to find the pressure exerted by an object that has a force of 180 newtons on an area of 10 square centimeters

physics

A longitudinal wave spreads radially from a source with power 345 W. What is the intensity 40.0 meters away? answer in W/m^2.

Physics Simple Harmonic Motion

The displacement of an object in SHM is given by y(t) = (7.0 cm)sin[(1.58 rad/s)t]. What is the frequency of the oscillations?

physics

Calculate the frequency in hertz and cm-1, as well as the energy in joules and electron volts of an x-ray photon with a wavelength of 4.55 angstroms.

PHYSICS

A 30 kg. balloon is filled with 100 m to the third power of helium. how much force is needed to hold it down?

physics

When you stand 200 meters away from a 30 meter tall tree, what angle should it take up on the horizon?

physics

A centrifuge accelerates uniformly from rest to 18000 rpm in 180 s. Through how many revolutions did it turn in this time?

physics

Which phase of matter consists of particles that are locked into place and unable to move past each other?

Integrated Physics and Chemistry

A furnace is used to heat ___ A)water B)air C)a refrigerant D)radiant coils

physics

What is the mass of a lead sinker witha volume of 3cm3? please show work I calculated 11.3*3 = 33.9 Is this correct.. Thank you.

Physics

An object is executing circular orbits of radius 0.5 m. If it completes an orbit every 3 seconds, what is its tangential speed?

physics for Mr. Pursley

I see 18% Nickel Alloy A (under pure silver) is listed as 2.874 x 10^-7 Is this what I should use?

physics

Marks: 2 Light cannot be linearly polarized by: Choose one answer. a. transmission b. reflection c. diffraction d. scattering

physics

Two equal masses m are place at positions r©û= (L, 2L, 3L) and r©ü= (3L, L ,2L). Calculate the moments of inertia Ix, Iy, Iz of the system with respect to the x, y, and z axes.

Physics

If it takes a particle in SHM 0.20 s to travel from the equilibrium position to the maximum displacement (amplitude), what is the period of oscillation?

physics hw urgent please

show how you would you arrange to find f in terms of v,m and r from four equations below. f=1/t, f=ma,v=2piR/T,a=v^2/R Thanks

Humanities Core

In what ways can we say that quantum physics both is and is not classical science? it has something to do with galileo but im not sure....

physics

A capacitor has a capacitance of 3 pF. What potential difference would be required to store a charge of 21 pC? Choose one answer. a. 3 V b. 21 V c. 7 V d. 0.14 V

physics

find the revolutions of a bicycle wheel of diameter 0.8m when the bike goes a distance of 25m down the street.

physics (vector)

the direction of forces 1n,2n,3nacting at a point are parallel to the sides of an equilateral triangle.the magnitude of the resultant is what? How

science(physics)

a force f= 3i+cj+2k acting on a particle causes displacement , d=-4i+2j+3k. If the work done is 6 joule then the value of c. Plz. Solve

physics

Calculate the density of an object with a mass of 109 grams and a volume of 123 ml. (Round your answer to 3 digits.)

physics

A body thrown vertically up from the ground passes the height 10.2m twice at an interval of 10 sec. Its initial velocity was (g = 10 m/s2)

physics

a driver releases an air bubble of volume 2.0 cm^3 from a depth of 15 m below the surface of a lake where the temperature is 70C.

physics

show working calculate, how far will a stone fall during the sixth hour of rest?(g=ms2)

PHYSICS

Which simple machine has more mechanical advantage a pulley or a inclined plane? PlEASEE HELP SUPER CONFUSED

physics

a skater holds her arms outstretched as she spins at 140 rpm. What is the speed of her hands if they are 125 cm apart?

physics

an object moves along a circle of radius r. its start froam A and reaches B. what is the path length? what is the displacement?

Physics

Find the length of an inclined plane that will reach a platform 8ft high and form 16degree with the ground

Physics

Determine the stopping distances for an automobile with an initial speed of 95km/h and human reaction time of 1.0s: (a) for an acceleration a= -5.2m/s^2 (b) for a= -6.7m/s^2

physics

Determine the stopping distances for an automobile with an initial speed of 95km/h and human reaction time of 1.0s: (a) for an acceleration a= -5.2m/s^2 (b) for a= -6.7m/s^2

physics

a cyclist travels at a distance of 10.0 km. in 30 min. after w/c he speeds up to 40 km/hr for 6.0 more mins. Find his average speed.

physics

a cyclist travels at a distance of 10.0 km. in 30 min. after w/c he speeds up to 40 km/hr for 6.0 more mins. Find his average speed.

Physics

How long does it take for the current in an circuit with = 150Ω and = 65mH to reach half its final value?

physics

A body of specific gravity 3.0 is immersed in water. What is the minimum force required to pull it out at velocity 2

physics

determine the speed of a transverse wave in a string with length 2m, mass 60g under a tensionof 500N.

physics

Determine the stopping distances for a car with an initial speed of 93 km/h and human reaction time of 3.0 s for the following accelerations: -4.00 m/s^2 -8.00 m/s^2

physics

Calculate the kinetic energy acquired by a 11- nail when it is struck by a 540- hammer moving with an initial speed of 4.9 .

physics

A uniformly accelerated particle covers three successive equal distances in time intervals t1, t2 and t3 respectively.

physics

A uniformly accelerated particle covers three successive equal distances in time intervals t1, t2 and t3 respectively.

Physics

If a car is travelling with a constant speed of 5.53 m/s in the Westward direction, what is the resultant force acting on it? Ignore friction

physics

How many times will the incident beam shown in Figure P25.3 (x = 1.10 m, y = 1.80 m) be reflected by each of the parallel mirrors? mirror on the right

physics

Jen sit on chair , the angle of lower leg 30 degree lenhg 40 cm. calculater center of mass

Physics

For the Law of Sines state the formulas, explain them in your own words, and draw a diagram illustrating one of them.

physics

A roller coaster travels 101 ft at an angle of 45.7 ◦ above the horizontal. How far does it move horizontally

physics

a waterfall is 122 m in height. calculate the rise in temperature if all potential lost is converted to heat.

PHYSICS

A roller coaster travels 101 ft at an angle of 45.7 ◦ above the horizontal How far does it move vertically

physics

A car traveling initially at 9.52 m/s acceler- ates at the rate of 0.609 m/s2 for 3.62 s. What is its velocity at the end of the accel- eration?

physics

If a flea can jump straight up to a height of 0.310 m, what is its initial speed as it leaves the ground? How long is it in the air?

Physics

Two vectors of magnitudes 25 N and 22 N act at right angles to each other. What is the magnitude of their resultant? Answer in units of N

physics

a car traveling 7.0 m/s accelerates uniformly at 2.5 m/s squared to reach a speed of 12 m/s. how long does it take for the acceleration to occur?

physics

a car traveling 7.0 m/s accelerates uniformly at 2.5 m/s squared to reach a speed of 12 m/s. how long does it take for the acceleration to occur?

physics

a hockey puck is sliding freely across a pound of friction ice. What is the free-body diagram?

physics

if you raise the temperature of 1000 grams of water by 17 degrees, how many calories of energy would you have added in

physics

With an average acceleration of -.56 m/s2, how long will it take a cyclist to bring a bicycle with an initial speed of 13.3 m/s to a complete stop?

physics

if you walk for 46 minutes at a speed of0.91 meters per second, how far will you have traveled? convert to km

physics

If I threw a ball vertically at an initial speed of 34.5 m/s, how many seconds would it take to reach its maximum height?

physics

Measuring in foot pounds of toque what pressure can the world’s strongest man exert by pulling on an object?

physics

A projectile is launched at a speed of 141m/s and an angle of 45 degrees. How fast is it moving at the top of its curved trajectory?

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