# Math/Physics

211,502 results, page 68

### Physics

A proton moving at 500000m/s enters a series of charged parallel plates. What is the impact speed on the last plate.

### physics

How high will a 1.95 rock go from the point of release if thrown straight up by someone who does 66.5 of work on it? Neglect air resistance.

### Physics

What is the minimum work in joules needed to push a 1460 kg car 14.0 m up a 12.5 degree incline? (Ignore friction.)

### Physics

Calculate the velocity of a satellite moving in a stable circular orbit about the Earth at a height of 2600 km.

### physics

Find the distance by which a 43cm diameter, 8.7m tall concrete column is compressed when it supports a 12400kg load

### physics

two forces of 10N and 7N respectively are applied simultaneously to an object . The minimum value of their resultant is, in newtons?

### physics

A 326 g object is attached to a spring and oscillates with a period of 0.25 s. The total energy in this system is 5.83 J. What is the amplitude of the motion?

### PHysics

What is the total energy of a 15-kg mass attached to a spring oscillating horizontally with an amplitude of 20 cm and an angular frequency of 32 rad/s?

### physics

What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 6.8 m/s when going down a slope for 2.5 s?

### physics

How far to the nearest meter can a sprinter running at 9 m/s, travel in the time it takes a rock to fall 65 meters?

### Physics

Why is parallel circuit brighter compared to series? ( Only one bulb is present in both circuits) Thanks :)

### physics

why it is easier to tear a paper off a full roll than a mostly used one? Is it because of Newton's law?

### Physics

A boy sledding down a hill accelerates at 1.25 m/s2. If he started from rest, in what distance would he reach a speed of 5.00 m/s?

### Physics

A boy sledding down a hill accelerates at 1.25 m/s2. If he started from rest, in what distance would he reach a speed of 5.00 m/s?

### physics

A vehicle moves in a straight line with an acceleration of 5 km/h^2.By how much does the speed change each second?Answer in units of km/h

### physics

A vector points 34.8 degrees to the Northeast with magnitude 15. What are the north and east components that make up the remainder of the triangle?

### Physics

A boy sledding down a hill accelerates at 1.70 m/s2. If he started from rest, in what distance would he reach a speed of 7.40 m/s?

### Physics

A boy sledding down a hill accelerates at 1.70 m/s2. If he started from rest, in what distance would he reach a speed of 7.40 m/s?

### physics

The minivan your mom lets you drive accelerates from 12 m/s to 24 m/s in 6.5 s. How far does it travel in this time? Assume constant acceleration.

### Physics

An object with a mass of 3kg is dropped from 56.3 meters. How far above the ground is it's kinetic energy 1073J?

### physics

If a DeLorean rolls gently (vo = 0) off a vertical cliff, how long does it take it to reach a downward velocity of 78 km/h?

### PHYSICS

If a DeLorean rolls gently (vo = 0) off a vertical cliff, how long does it take it to reach a downward velocity of 78 km/h?

### Physics

How do I find Vector Resolution F = 0.300 g N, theta = 60 degrees. Do I take tan inverse (.3 sin 60/.3 cos 60)?

### physics

find the value of 60jule per minute on a system which has 10cm, 100gm and 1minute as fundamental unit

### Physics

a bb gun has a muzzle velocity of 325 ft/sec. How long will it take the bb to hit the ground? How far will the bb travel?

### Physics

A Ping-Pong ball has a mass of 2.3 g and a terminal speed of 8.2 m/s. The drag force is of the form bv2 What is the value of b?

### physics

Figure 18-23 shows three linear temperature scales, with the freezing and boiling points of water indicated.

### Physics

A picture hangs on the wall suspended by two strings, as shown in the figure, with θ = 59°. The tension in string 1 is 1.9 N.

### physics

The three vectors in the figure below have magnitudes a = 2.45 m, b = 3.15 m, and c = 15.0 m and angle θ = 36.5° find x component of vector a

### physics

The three vectors in the figure below have magnitudes a = 2.45 m, b = 3.15 m, and c = 15.0 m and angle θ = 36.5° find the x and y component of vector a

### PHYSICS

Find the capacitance of a parallel plate capacitor having plates of area 1.00 m2 that are separated by 0.400 mm of Teflon.

### physics

A ball is thrown straight up with an initial speed of 30 m/s. How high does it go? Assume the acceleration of gravity is 10 m/s 2 . Answer in units of m

### Physics

A boy sledding down a hill accelerates at 1.65 m/s2. If he started from rest, in what distance would he reach a speed of 7.30 m/s?

### Physics

A volleyball player serves the ball horizontally with a speed of 23.8 m/s. How far will it have dropped when it reaches a distance 9.1 m

### Physics

A stone is thrown straight up. To reach a height of 6.49 m above its release point, what must its initial speed be in m/s?

### physics

A stone is thrown straight up. To reach a height of 6.74 m above its release point, what must its initial speed be in m/s

### physics

How long does it take a rocket to change its velocity by 57 m/s while accelerating at 53.7 m/s2? Round your answer to 2 decimal places.

### Physics

An American bald eagle heads south at 5.5 m/s, but encounters a wind blowing from the east at 1.9 m/s. By how many degrees will she be blown o course?

### physics

the frequency of middle C on a piano is 261.6hz. What is the wavelength of sound as it travels @room air and in water?

### physics

a baseball is thrown horizontally at a velocity of 35 m/s from a height of 1.5 m. How long does it take to hit the ground? how far does it travel?

### physics

State the surface powers required to produce the following lenses with +6.25D front curves. a. -0.50 DS b. +0.50 DS c. +1.75 DS Is a -6.75DS?....

### physics

State the surface powers required to produce the following lenses with +6.25D front curves. a. -0.50 DS b. +0.50 DS c. +1.75 DS Is a -6.75DS?....

### Physics

What is the angular momentum (in J*s) of a mass of 1.45 kg which completes an orbit about a point 23.0 meters away every 5.30 seconds.

### PHYSICS

A 3.1 kg bundle starts up a 30° incline with 139 J of kinetic energy. How far will it slide up the plane if the coefficient of friction is 0.30?

### Physics

The distance between Earth and the Moon is 3.84 * 108 m. Show that the round-trip time for the light is 2.56 s Thanks in advance

### physics

Radio waves transmitted through space at 3.00¡¿10 8 m/s by the Voyager spacecraft have a wavelength of 0.120 m. What is their frequency?

### physics 100

What minimum speed does a 160 puck need to make it to the top of a 5.4 -long, 24 frictionless ramp?

### PHYSICS

What is the direction (vertical or horizontal) of the transmission axis of Polaroid sunglasses? Give the physical reason for your answer.

### PHYSICS

What is the direction (vertical or horizontal) of the transmission axis of Polaroid sunglasses? Give the physical reason for your answer.

### Physics

A compound known as cubic boron nitride has a similar structure to that of. A diamond .wat properties do u expect it to have??

### physics

How tall would a water-filled manometer have to be in order to measure blood pressures up to 300mm Hg?

### Physics

What power is needed to lift a 358 crate of bricks from the ground to the top of a 25.0 -high building in 1 minute?

### physics

how much heat enrgy must be taken in 24 gram of water to reduce the temperature of 7 degrres celcius

### physics

how much energy would it take to melt 250kg of lead assuming it starts at 30 degrees centigrade.

### physics

three point charges-1*10^-6,-2*10^-6,3*10^-6.one kept at corners of an equilateral triangle of side 1m.what is potential at centre

### Physics

State the expression for moment of inertial of the following (1) A rod (2) rectangula plate (3) ring (4)circular disc

### Physics

State the expression for moment of inertial of the following (1) A rod (2) rectangula plate (3) ring (4)circular disc

### Physics

State the expression for moment of inertial of the following (1)A rod (2) Rectangular plate (3) ring (4) circular disc

### Physics

State the expression for moment of inertial of the following (1)A rod (2) Rectangular plate (3) ring (4) circular disc

### Physics

State the expression for moment of inertial of the following (1)A rod (2) Rectangular plate (3) ring (4) circular disc

### physics

a car starts from rest and has a constant acceleration of 2.5 m/s^2. if it travels 25m how long will it take to complete the motion

### Physics

What is the formula for the force experienced by a moving charge q whose velocity v forms an angle è with a magnetic field B?

### Physics

A 1200kg car accelreates from 0mph-60mph in 8.5 seconds. Calculate the force needed to accelerate the vehicle.

### physics

A boy sledding down a hill accelerates at 1.20 m/s2. If he started from rest, in what distance would he reach a speed of 6.10 m/s?

### physics

determine the amount of heat generated per minute by a 120 volt lamp which takes 0.5 amperes. thanks!

### Physics 11

A girl stands 2.5 m infront of a plane mirror. If she sees someone else 2.0 m behind her, how far is she from the image of that person?

### Physics Help

Charge Q is uniformly distributed around the perimeter of a semicircle of radius R. What is the electric field at the circle's center?

### Physics

A man carries a 10 kg sack of groceries in his arms with a force of 50 N as he walks forward a distance of 10 m. How much work has he done?

### physics

If the 60-kg player is running forward at 7.0m/s when she makes contact with the dummy, what is the players velocity at the end of the 1.20s impact?

### physics

a particle completes 4 revolution/sec on a circular path of radius 0.25m.calculate angular velocity

### Physics

A block weighing 5.7 N requires a force of 2 N to push it along at constant velocity. What is the coefficient of friction for the surface?

### Physics

A block weighing 5.7 N requires a force of 2 N to push it along at constant velocity. What is the coefficient of friction for the surface?

### Physics

True or False. When non-conservative forces are present, the amount of work done increases with the length of the path.

### PHYSICS

A stone propelled from a catapult with a speed of 50m/s attains a height of 100m.Calculate:(a)the time of flight?

### physics

Three resistors, 1.17, 2.84, and 3.65Ω, are connected in series across a 20.3-V battery. Find the power delivered to each resistor.

### physics

Three resistors, 1.17, 2.84, and 3.65Ω, are connected in series across a 20.3-V battery. Find the power delivered to each resistor.

### physics

let p and E denote the linear momentum and energy of emitted photon respectively if the wavelength of incident radiation is increased----

### physics

A car with a weight of 5000.0 N is accelerated across a level surface at 2.5 m/s^2. What is the net force acts on the wagon? (g= 9.81 m/s^2)

### Physics 11

If two objects weighing 5 kg and 7 kg are dropped from a height of 64 m and 36 m, respectively. What will be the ratio of times taken to reach the ground? Thanks.

### physics

If You do 100 j of work to elevate a bucket of water,what is its gravitational potential energy relative to its starting position?

### physics

Calculate the effective value of g, the acceleration of gravity (in meters/second^2), at 5100 km above the earth's surface.

### Physics

An object is dropped from rest. What is its instantaneous speed when it has been in motion for 7 s? The acceleration of gravity is 9.8 m/s 2 . Answer in units of m/s

### Physics

What happens to the vibrating length of a resonance tube if a loud speaker is brought close to a displacement node?

### Physics

Find the frequency of a sound wave moving in air at room temperature (20.0) with a wavelength of 0.667 m. Is the formula F=1/T?

### Physics

The electric field lines surrounding three charges are shown in the figure below. The center charge is q2 = -15.9 µC.

### physics

a toy moves on a horizontal surface with a speed of 3m/s.it makes 8 turns in 5 seconds,whats the diameter of the wheel?

### physics

Just wanted to say a quick thanks to Steve and Damon, figured it all out, thanks guys, awsome!!!

### physics

If only conservative forces are acting, total mechanical energy (KE + PE) is not necessarily conserved. True or False?

### physics

32 kg child practicing rock climbing, she feel but the rope hung on with a tension of 253N. find acceleration??

### physics

A 0.49 cm high object is placed 8.5 cm in front of a diverging lens whose focal length is -7.5 cm. What is the height of the image?

### Physics

Neglecting air resistance, how high could a 0.15kg baseball be thrown if it is throw straight up at a speed of 25m/s?

### college physics

How many seconds would it take a 7.00hp motor to raise a 475 lb boiler to a platform 38.0 ft high?

### Physics

Show that 480 W of power is expended by a weightlifter when lifting a 60-kg barbell a vertical distance of 1.2 m in a time interval of 1.5 s.

### physics

what pressure (in atm) would be exerted by 76g of fluorine gas in a 1.5 litre vessel at -37 degrees Celsius?

### Physics

Two identical positive charges exert a repulsive force of 7.0 10-9 N when separated by a distance of 3.2 10-10 m. Calculate the charge of each. _C

### physics

A body of 150kg is located at a height of 45m. If allowed to fall freely to the ground. What will be its velocity on impact?

### Physics help!

The range of human hearing extends from approximately 20 Hz to 20,000 Hz. Find the wavelengths of these extremes at a temperature of 2°C. 20 Hz? 20000 Hz?

### physics

TWO METALLIC WIRES AB ARE CONNECTED IN PARALLEL A ASS LENGTH L & RADIUS R V AS LENGHT 2L AND 2R FIND RESISTANCE

### physics

A football is kicked with a velocity of 31 m/s at an angle of 41. What is the ball's acceleration in the vertical direction as it flies through the air?