Saturday
October 1, 2016

Homework Help: Science: Physics

Recent Homework Questions About Physics

physics
the nuclei Co-57 an odd-even unstable nucleus is often used as a source of radiation in nuclear processes. Show that the nuclei is stable relative to beta plus decay by electron capture
Wednesday, March 30, 2016 by jay

Physics - Constructive Interference
A square has sides of length L. In the lower-right and lower-left corners there are two sources of light waves, one in each corner, that emit identical in-phase light waves of wavelength 8.28 m in all directions. What is the minimum value of L such that constructive ...
Wednesday, March 30, 2016 by A

physics
The froghopper Philaenus spumarius is supposedly the best jumper in the animal kingdom. To start a jump, this insect can accelerate at 4.00 km/s2 over a distance of 2.00 mm as it straightens its specially adapted“jumping legs.” Assume the acceleration is constant. (a...
Wednesday, March 30, 2016 by Anonymous

Physics
A man completes 31 lengths of a 50 metre pool with an average speed of 0.9 km/h. What is the magnitude of his average velocity vector in Standard SI units?
Wednesday, March 30, 2016 by Nick

physics
The speed of a bullet as it travels down the barrel of a rifle toward the opening is given by v=(-5.00×10^7)t^2 + (3.00×10^5)t where v is in meters per second and t is in seconds. The acceleration of the bullet just as it leaves the barrel is zero. (a) Determine ...
Wednesday, March 30, 2016 by Anonymous

physics
a mass is at rest with respect to the lab frame, while a frictionless turntable rotates beneath it. the frequency of turntable is w and mass is located at radius r. In the frame of turntable , find the forces acting on mass and verify that F=ma
Wednesday, March 30, 2016 by Garima

physics
a mass is at rest with respect to the lab frame, while a frictionless turntable rotates beneath it. the frequency of turntable is w and mass is located at radius r. In the frame of turntable , find the forces acting on mass and verify that F=ma
Wednesday, March 30, 2016 by Garima

physics
a block slides along a path that is without friction until the block reaches the section of length L = 0.75 m, which begins at height h = 2.0 m on a ramp of angle θ = 30°. In that section, the coefficient of kinetic friction is 0.40. The block passes through point A ...
Wednesday, March 30, 2016 by Kayla

physics
For the next part, you will need to know that the position d of an object attached to a spring that oscillates with period T=1.0s is a sinusoidal function of time: d=kcos(2πt)d=kcos(2πt) for some constant k. Assume that the initial position of the object is d0=2.0cm...
Wednesday, March 30, 2016 by k

Physics Circuit Problem
(dot) webassign (dot) net / s e r c p 9 / 1 8 - p - 0 2 1 - a l t . g i f Determine... (a) the current in each resistor (Indicate the direction of the current flow through each resistor through the sign of your answer. Take upward current flow as positive.) (b) the potential ...
Tuesday, March 29, 2016 by Anonymous

Physics- Circuits Current & Voltage Problem
Please find this question onto y a h o o s e a r c h e n g i n e b y c o p y & p a s t e. Determine... (a) the current in each resistor (Indicate the direction of the current flow through each resistor through the sign of your answer. Take upward current flow as positive.) (b...
Tuesday, March 29, 2016 by Frustrated College Student

Physics
At the moment of release each plane has the same speed of 186 m/s, and each tank is at the same height of 3.11 km above the ground. Although the speeds are the same, the velocities are different at the instant of release, because one plane is flying at an angle of 15.0° ...
Tuesday, March 29, 2016 by Bel

PHYSICS - PLZ HELP
Q: A 5.0 kg block is placed on top of a 10. kg block.(DIAGRAM : ww w.ux1.eiu.edu/~cfadd/1350/Hmwk/Ch05/Imag​es/P5.74.g i f) A horizontal force of 45 N is applied to the 10. kg block and the 5.0 kg block is tied to the wall. The coefficient of friction between the moving ...
Tuesday, March 29, 2016 by out of time

Physics
Advanced electronic techniques utilize microscopic structures. Consider a single-turn solenoid in which the radius and the length of the solenoid are both of the order 10 microns, and a parallel plate capacitor in which the plate separation and the radius of the plates are ...
Tuesday, March 29, 2016 by SomeoneSexy

Physics-mechanics
A child's toy car runs off a battery that can supply 105 Wh of energy. If all losses (including friction) consume 45.0% of the energy available and the rider and car have a combined weight of 910 N, determine the height of the largest hill the child can climb in the car in...
Tuesday, March 29, 2016 by John

physics
A child of mass 54.7 kg sits on the edge of a merry-go-round with radius 2.3 m and moment of inertia 222.81 kgm2. The merrygo-round rotates with an angular velocity of 1.6 rad/s. What radial force does the child have to exert to stay on the merry-go-round? Answer in units of N.
Tuesday, March 29, 2016 by a

PHYSICS
A ball is projected horizontally with a velocity of 2.5m/s. Find its position and velocity after one second. pls show ur workings.
Tuesday, March 29, 2016 by PEACE

Physics HELP!!
The pressure increases by 1.0 x 104 N/m2 for every meter of depth beneath the surface of the ocean. At what depth does the volume of a Pyrex (bulk modulus 2.6 x 1010 N/m2) glass cube, 6.4 x 10-2 m on an edge at the ocean's surface, decrease by 5.8 x 10-10 m3? I know that I...
Tuesday, March 29, 2016 by James Houl

Physics
A mixing beater consists of three thin rods, each 10.9 cm long. The rods diverge from a central hub, separated from each other by 120°, and all turn in the same plane. A ball is attached to the end of each rod. Each ball has cross-sectional area 3.70 cm2 and is so shaped ...
Tuesday, March 29, 2016 by Amy

Physics
A pulsar is a rapidly rotating neutron star that continuously emits a beam of radio waves in a searchlight manner. Each time the pulsar makes one revolution, the rotating beam sweeps across the earth, and the earth receives a pulse of radio waves. For one particular pulsar, ...
Tuesday, March 29, 2016 by Emily

PHYSICS
1)At the instant traffic turns green, an automobile that has been waiting at an intersection of roads accelerats with 5ms-2. At the same instant a truck traveling with a constant velocity. (i) how far beyond its starting point will be automobile overtake the truck? (ii)how ...
Tuesday, March 29, 2016 by PEACE

Physics
A block of mass 0.61kg starts from rest at point A and slides down a frictionless hill of height h. At the bottom of the hill it slides across a horizontal piece of track where the coefficient of kinetic friction is 0.40. This section (from points B to C) is 4.73m in length. ...
Tuesday, March 29, 2016 by Emily

Physics
In a skating stunt known as "crack-the-whip", a number of skaters hold hands and form a straight line. They try to skate so that the line rotates about the skater at one end, who acts as the pivot. The skater farthest out has a mass of 76.7 kg and is 6.18 m from the ...
Tuesday, March 29, 2016 by Emily

Physics
A square has sides of length L. In the lower-right and lower-left corners there are two sources of light waves, one in each corner, that emit identical in-phase light waves of wavelength 8.28 m in all directions. What is the minimum value of L such that constructive ...
Tuesday, March 29, 2016 by A

Physics
A double lens system is made of +35.0 cm lens (lens #1) and a - 26.0 cm lens (lens #2). Lens #1 is placed at x = 0 cm on a meter stick and lens #2 is placed at x = 30.0 cm. Where on the meter stick will the final image be formed when looking at a distant object? s2"=f2(f1...
Tuesday, March 29, 2016 by A

Physics
A 9.37 kg monkey is hanging by one arm from a branch and swinging on a vertical circle. As an approximation, assume that the radial distance between the branch and the point where the monkey's mass is located to be 86.8 cm. As it swings through the lowest point on the ...
Tuesday, March 29, 2016 by Emily

Physics
A car travels at a constant speed around a circular track whose radius is 2.59 km. The car goes once around the track in 380 s. What is the magnitude of the centripetal acceleration of the car?
Tuesday, March 29, 2016 by Emily

Physics
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. People sit in seats facing the axis, their backs against the outer wall. At one instant the outer wall moves at a speed of 3.21 m/s, and an 75.7 kg person feels a 558 N ...
Tuesday, March 29, 2016 by Emily

physics
a girl on a swing 2m above the ground at her highest point and 1m above the ground at her lowest point. what is the girls maximum speed?
Tuesday, March 29, 2016 by Anonymous

Physics
A cyclist starts from rest and accelerates at 2m/s2, for 2second. Her velocity remains constant for the following 4second. The brakes are then applied and the bicycle decelerates uniformly until it comes to rest after 10 second. Find(a) the distance moved during each stage of ...
Tuesday, March 29, 2016 by Physics

Physics
A car is driving with a velocity of 108km/h suddenly a child crosses the road 100m in frond of the car. the driver applies brakes and comes to a stop in 5 second. Calculate the acceleration of the car
Tuesday, March 29, 2016 by Physics

physics
Why is the following situation impossible? Emily challenges David to catch a $1 bill as follows. She holds the bill vertically with the center of the bill between, but not touching David’s index finger and thumb. Without warning, Emily releases the bill. David catches ...
Tuesday, March 29, 2016 by Anonymous

PHYSICS
A GALVANOMETER WITH COIL RESISTANCE 12.0OHMS SHOWS FULL SCALE DEFLECTION FOR A CURRENT OF 2.5MA HOW WOULD YOU CONVERT IT INTO A VOLTMETER OF RANGE 0 TO 10VOLTS
Tuesday, March 29, 2016 by ADEOSUN

physics
A 3.25-kg object is attached to a vertical rod by two strings as shown in the figure below. The object rotates in a horizontal circle at constant speed 6.60 m/s. (a) Find the tension in the upper string. N (b) Find the tension in the lower string. N
Monday, March 28, 2016 by jojo

Physics
A local ice hockey team has asked you to design an apparatus for measuring the speed of the hockey puck after a slap shot. Your design is a 2.00-m-long, uniform rod pivoted about one end so that it is free to rotate horizontally on the ice without friction. The 1.70-kg rod has...
Monday, March 28, 2016 by Frankie

Physics
A 0.11-kg balloon is filled with helium (density = 0.179 kg/m3). If the balloon is a sphere with a radius of 5.4 m, what is the maximum weight it can lift?
Monday, March 28, 2016 by Scott

Physics
A 5.0 kg block is placed on top of a 10. kg block (ux1.eiu.edu/~cfadd/1350/Hmwk/Ch05/Image​s/P5.74.gif) . A horizontal force of 45 N is applied to the 10. kg block and the 5.0 kg block is tied to the wall. The coefficient of friction between the moving surfaces is 0.20. ...
Monday, March 28, 2016 by physics kid

Physics
Tom (65 kg) is standing on a scale in an elevator holding an apple. The elevator begins to accelerate downwards at 2.4 m/s2. (c) What is the acceleration of the apple with respect to Tom, after he drops the apple while accelerating? (d) What is the acceleration of the apple if...
Monday, March 28, 2016 by Bubble

Physics
Jay (65 kg) is standing on a scale in an elevator holding an apple. The elevator begins to accelerate downwards at 2.4 m/s2. What does the scale read during this acceleration? would it be 793 N or 481N? N=m(g-a) OR N=m(g+a)? and why plz!
Monday, March 28, 2016 by Bubble

Physics
Object A experiences a gravitational force due to object B. How would that force change if the separation distance is halved, mA triples, and mB is reduced to one quarter of its original value?
Monday, March 28, 2016 by lost in life

physics steve or damon help!!!!
A stone is thrown horizontally from the top of a vertical wall with a velocity of 15m/s hit the horizontal ground at a point 45m from the base of the wall.calculate the height of the wall g=10
Monday, March 28, 2016 by david

physics
A car drives straight down toward the bottom of a valley and up the other side on a road whose bottom has a radius of curvature of 115 m. At the very bottom, the normal force on the driver is twice his weight. At what speed was the car traveling? I have the formulas (v = 2pi*r...
Monday, March 28, 2016 by Rain

Physics 110
How much energy is needed to raise 500 grams of water from 10 degrees Celsius to 40 degrees Celsius?
Monday, March 28, 2016 by Jennifer

physics
A wave of frequency M sec-1 has a velocity of 4M m/sec. (a) How far apart are two points whose displacements are (𝑴𝟐)𝑜. apart in phase? (b) At a given point, what is the phase difference between two displacements occurring at times separated by M/1000 sec
Monday, March 28, 2016 by Anonymous

physics
two charged particles of masses 4m & m and having charges +q & +3q are placed in uniform electric field they are allowed to move for 2 sec find the ratio of their kinetic energy solution
Monday, March 28, 2016 by Ar!@#$%^&a

physics
solid sphere,thin walled hollow sphere,solid cylinder from above the ground in the same mass and radius which object reach first the ground?
Monday, March 28, 2016 by Yonas

physics
Moving with uniform acceleration a body covers 80 m in first 5s and 180m in next 5s.find initial velocity and acceleration
Monday, March 28, 2016 by rushil

PHYSICS
A 3.50 kg ball with a velocity of 10.00 m/s collides with a stationary ball with a mass of 5.00 kg. After the collision, the first ball travels at a 42.6 degree angle from its original path, while the second ball travels at a -26.7 degree angle from the other ball's ...
Sunday, March 27, 2016 by Omar

physics
what is electric field lines
Sunday, March 27, 2016 by Awal

physics
Freshwater (𝜌 = 1,020 kg/m3) is flowing in a horizontal pipe whose cross section widens from 9.0 cm2 to 13.0 cm2. The water speed at the wide section of the pipe is 1.25 m/s. What pressure difference (absolute value) is there between narrow and wide section?
Sunday, March 27, 2016 by Anonymous

physics
An electric train moving at 20kmh accelerates to a speed of 30kmh in 20 seconds.find the distance travelled in metres during the period of acceleration
Sunday, March 27, 2016 by Awwal

PHYSICS
Suppose a 1800-kg car passes over a bump in a roadway that follows the arc of a circle of radius 18.4 m as in the figure shown below. (a) What force does the road exert on the car as the car passes the highest point of the bump if the car travels at 9.24 m/s? (Neglect any ...
Sunday, March 27, 2016 by MARY

physics
Suppose a 1800-kg car passes over a bump in a roadway that follows the arc of a circle of radius 18.4 m as in the figure shown below. (a) What force does the road exert on the car as the car passes the highest point of the bump if the car travels at 9.24 m/s? (Neglect any ...
Sunday, March 27, 2016 by mary

physics
Question Part Submissions Used A 3.25-kg object is attached to a vertical rod by two strings as shown in the figure below. The object rotates in a horizontal circle at constant speed 6.60 m/s. (a) Find the tension in the upper string. N (b) Find the tension in the lower ...
Sunday, March 27, 2016 by mary

physics
Suppose a 1800-kg car passes over a bump in a roadway that follows the arc of a circle of radius 18.4 m as in the figure shown below. (a) What force does the road exert on the car as the car passes the highest point of the bump if the car travels at 9.24 m/s? (Neglect any ...
Sunday, March 27, 2016 by maryann

physics
An air puck of mass m1 = 0.24 kg is tied to a string and allowed to revolve in a circle of radius R = 1.4 m on a frictionless horizontal table. The other end of the string passes through a hole in the center of the table, and a mass of m2 = 1.3 kg is tied to it (see the figure...
Sunday, March 27, 2016 by maryann

physics
A laser beam passes from air into a 25% glucose solution at an incident angle of 37 ∘ . In what direction does light travel in the glucose solution? Assume the index of refraction of air is n = 1.
Sunday, March 27, 2016 by james

Physics help me plss
An aricraft carrier has a mass of 8.6*10^7 kg and can cruise at 80 km/h. a) What is the work required to stop it? B) If only half of the work required to stop it is done, what is its final speed in km/h For a) I found 2.123*10^10 which is the right answer but I cant find b i ...
Sunday, March 27, 2016 by PHYSICSS PLS

physics
A house with a room wall of 5m by 3m is build of bricks of 20 cm. if internal temperature is 21 degrees celcius and those outside -18 degres celcius; what is the amount of heat flow if thermal conductivity is 0.63
Sunday, March 27, 2016 by Anonymous

Physics
At the start of your throw of a 5.6-kg bowling ball, your arm is straight behind you and horizontal (Figure 1) . Your arm is 0.64 m long, has a rotational inertia of 0.48 kg⋅m2 and has a mass of 3.5 kg with its center of mass 0.28 m from your shoulder joint. Determine ...
Saturday, March 26, 2016 by Cosmo

Physics help me guys
An aricraft carrier has a mass of 8.6*10^7 kg and can cruise at 80 km/h. a) What is the work required to stop it? B) If only half of the work required to stop it is done, what is its final speed in km/h For a) I found 2.123*10^10 which is the right answer but I cant find b i ...
Saturday, March 26, 2016 by LEXIMAHO

Physics
The activity of a sample of 31Si (T1/2 = 9.43×103 s) is 7.88×105 decays per second. What is the mass of sample present?
Saturday, March 26, 2016 by Peter

Applied Physics
An object moving with a constant accleration travels distance of 20m and 24m respectively in 3rd and 4th second of its motion. Find the initial velocity and the accleration of an object
Saturday, March 26, 2016 by Anonymous

Physics
In Europe, the standard voltage is 230 V (rms), AC, and 50 cycles/s. Suppose you take your 5.00 W electric razor to Rome and plug it into the receptacle (with an adapter to fit the receptacle but not to change the voltage). (The standard voltage in the United States is 120 V (...
Saturday, March 26, 2016 by Alyssa

Physics
Particle 1 of mass 3m initially moving with a speed v0 in the positive x-direction collides with particle 2 of mass m moving in the opposite direction with an unknown speed v.After collision,particle 1 moves along the negative y-direction with speed v0/2 and particle 2 moves ...
Saturday, March 26, 2016 by Divya

physics 1
A 3.50 kg ball with a velocity of 10.00 m/s collides with a stationary ball with a mass of 5.00 kg. After the collision, the first ball travels at a 42.6 degree angle from its original path, while the second ball travels at a -26.7 degree angle from the other ball's ...
Saturday, March 26, 2016 by i

physics
Two equally long 12-cm diameter pipelines have the same pressure difference between ends. One carries a ‘Type A’ oil (𝜂 = 0.091 Pa s) and the other a ‘Type B’ oil (𝜂 = 0.064 Pa s). If ‘Type A’ oil flows at 0.14 m3/s, at which rate ...
Saturday, March 26, 2016 by David

physics
Freshwater (𝜌 = 1,020 kg/m3) is flowing in a horizontal pipe whose cross section widens from 9.0 cm2 to 13.0 cm2. The water speed at the wide section of the pipe is 1.25 m/s. What pressure difference (absolute value) is there between narrow and wide section?
Saturday, March 26, 2016 by Morgan

physics
A 1,500-kg car stands on a square platform, and a 25-kg boy stands on another square platform. These platforms are the two caps of a large oil-filled container. What must be the ratio of the platform sides (large/small) for the boy to gently lift the car?
Saturday, March 26, 2016 by Dylan

physics
A force of 80N acts on a body initially at rest and moves 72m in 6s. If the force is removed after 6s calculate how far the body moves after 6s
Saturday, March 26, 2016 by jay

physics
explain the physics concept to why a ship sounds when moving in water?
Saturday, March 26, 2016 by lucy

physics
explain the physics principle why the size of tree stem decreases upwards?
Saturday, March 26, 2016 by lucy

physics
state or law which explains why a ship can easily sink than overturn?
Saturday, March 26, 2016 by lucy

physics
why is it cold in winter and hot in summer basing on physics knowledge
Saturday, March 26, 2016 by lucy

Physics
A man is 2m50cm standing in front of a vertical mirror at a distance of 3cm,if the mirror is rotated from is initial velocity through and angle of 50degree? 1.determine the size of the image of the man? 2.how far from the man is the image? 3.what is the shortest length of the ...
Saturday, March 26, 2016 by Nobility

College Physics
At what temperature is the root-mean-square speed of nitrogen molecules equal to the root-mean-square speed of hydrogen molecules at 126 oC? (Hint: The molar mass of hydrogen atoms is 1.008 g/mol and of nitrogen atoms is 14.007 g/mol. The molar mass of H2 is twice the molar ...
Saturday, March 26, 2016 by Desperate Student

College Physics
A welder using a tank of volume 1¡Ñ10−2m3 fills it with oxygen (with a molar mass of 32.0g/mol ) at a gauge pressure of 1.4¡Ñ105Pa and temperature of 37.0∘C. Find the initial mass of oxygen. R=8.314m3PaK-1mol-1. The answer¡¦s ...
Saturday, March 26, 2016 by Desperate Student

College Physics
If a certain amount of ideal gas occupies a volume 9.5 m3 with a pressure of 3.1 atm and temperature 5.4 oC on earth, what would be its volume on another planet, where the temperature is 5.3oC and the pressure is 7.4 atm ? The answer is in unit of m3
Saturday, March 26, 2016 by Desperate Student

Physics
A pan filled with hot food cools from 94°C to 86°C in 2minutes when the room temperaturs is at 20°C .How long will it take to cool from 71°C to 69°C ?
Saturday, March 26, 2016 by Eddie

physics
the age of jane and john add up to 25years.8years ago jane was twice as old as john.how old are they now?
Saturday, March 26, 2016 by lucy

physics
a handbag weighing 162N is carried by the students each holding the handle of the bag next to him. If each handle is inclined at 60° to the vertical, find the force on each students arm
Saturday, March 26, 2016 by jay

Physics
sound wave of frequency 166 Hz travels with a speed 332 ms−1 along positive x-axis in air. Each point of the medium moves up and down through 5.0 mm. Write down the equation of the wave and calculate the (i) wavelength, and (ii) wave number. How far are points which ...
Saturday, March 26, 2016 by Komal

Physics
The steady-state amplitude of a weakly damped forced oscillator is given by 2 2 2 2 2 2/1 0 0 [( ) 4 ] ( ) ω −ω + ω ω = b f a Depict it as a function of frequency and obtain expression for resonance frequency. Also obtain expression for peak value of ...
Saturday, March 26, 2016 by Komal

Physics
train moving with speed 72 km h−1 emits a whistle of frequency 600 Hz. A person is standing stationary on the platform. Calculate the frequency heard by the person if the train (i) approaches and (ii) recedes away from the listener.
Saturday, March 26, 2016 by Komal

physics
An electron is traveling at 1% the speed of light. what is its kinetic energy in joules? (Speed of light= 3x 10 to the exponent of 8 m/s) a. 4.000 x 10-18 (exponent of -18) b. 4.098 x 10 (exponent of -18) c. 4.098 x 10 (exponent of 10) d. 4.000 x 10 (exponent of 18)
Saturday, March 26, 2016 by pub

physics
A 2.00 kg ball moving to the right at 10.0 m/s makes an off-center collision with a stationary 3.00 kg ball. After the collision, the 2.00 kg ball is deflected upward at an angle of 30o from its original direction of motion and the 3.0 kg ball is moving at 4.0 m/s. Find the ...
Friday, March 25, 2016 by brett

Physics
Find The Potential Energy Of A Boy Mass 10kg Standing On A Building Floor Of 10 Metres Above Ground Level. 10*10*10 =1000
Friday, March 25, 2016 by Davido

physics
In a popular amusement park ride, a rotating cylinder of radius R = 3.10 m is set in rotation at an angular speed of 4.20 rad/s, as in the figure shown below. The floor then drops away, leaving the riders suspended against the wall in a vertical position. What minimum ...
Friday, March 25, 2016 by jojo

physics
Suppose a 1800-kg car passes over a bump in a roadway that follows the arc of a circle of radius 18.4 m as in the figure shown below. (a) What force does the road exert on the car as the car passes the highest point of the bump if the car travels at 9.24 m/s? (Neglect any ...
Friday, March 25, 2016 by jojo

physics
An air puck of mass m1 = 0.24 kg is tied to a string and allowed to revolve in a circle of radius R = 1.4 m on a frictionless horizontal table. The other end of the string passes through a hole in the center of the table, and a mass of m2 = 1.3 kg is tied to it (see the figure...
Friday, March 25, 2016 by jojo

physics
A rotating wheel requires 6.00 s to rotate 27.0 revolutions. Its angular velocity at the end of the 6.00-s interval is 97.0 rad/s. What is the constant angular acceleration (in rad/s) of the wheel?
Friday, March 25, 2016 by jojo

physics
A centrifuge in a medical laboratory rotates at an angular speed of 3,550 rev/min. When switched off, it rotates through 54.0 revolutions before coming to rest. Find the constant angular acceleration (in rad/s2) of the centrifuge.
Friday, March 25, 2016 by jojo

Physics
A Boy Of 20KG Climbs 10m.Take 10m/s. Calculate the workdone,
Friday, March 25, 2016 by Anonymous

physics
A satellite of mass 2500kg is orbiting the Earth in an elliptical orbit.At the farthest point from the Earth,its altitude is 3600km,while at the nearest point,it is 1100km.calculate the energy and angular momentm of the satellite and its speed at the aphelion and perihelion.
Friday, March 25, 2016 by Anonymous

physics
A satellite of mass 2500kg is orbiting the Earth in an elliptical orbit.At the farthest point from the Earth,its altitude is 3600km,while at the nearest point,it is 1100km.calculate the energy and angular momentm of the satellite and its speed at the aphelion and perihelion.
Friday, March 25, 2016 by pawan kumar

physics
what is the effective weight of a person of mass 60kg carried vertically up in a rocket with an
Friday, March 25, 2016 by pawan kumar

physics
a horizontal disk is rotating counter -clockwise about its axisof of symmetry at 14rps.Its rotational inertia with respect to its axis of symmetry is8kgm^2.A second disk,of
Friday, March 25, 2016 by pawan

Physics
Synthetic diamonds can be manufacated at pressures of 6.00 x 10 in power 4 atm . If we took 2.00 litres of gas at 1.00 atm and compressed it to a pressure of 6.00 x 10 in power 4 atm , what would the volume of that gas be ?
Friday, March 25, 2016 by Midnight

physics
A body falling from a high tower travels 40m in the last 2.71 sec of its fall to ground. What is the height of the tower?
Friday, March 25, 2016 by gelee

physics
A body falling from a high tower travels 40 m in the last 2.71sec of its fall to the ground. What is the height of the tower?
Friday, March 25, 2016 by gelee

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