# 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?