Saturday
February 25, 2017

Homework Help: Science: Physics

Recent Homework Questions About Physics

physics
Lake Champlain, bordered by New York, Vermont, and Quebec, has a surface area of 1,126 km^2. If the energy (173 PJ) is provided by sunlight shining on the lake at an average rate of 200 W/m^2 but with only half that amount absorbed, how long will it take the lake to absorb the...
Thursday, February 9, 2017 by Joseph

Physics
A 30.0kg blcok is resting on a flat horizontal table. ON top of this block is resting a a 15.0kg block, to which a horizontal spring is attached, as the drawing illustrates. The spring constant of the spring is 325N/m. The coefficient of kinetic friction between the lower ...
Thursday, February 9, 2017 by TI

Physics
A wrecking ball is swinging at just the right height so that the student can stand at the bottom of the trajectory (lowest point) and grab onto the ball to swing – something that is just way too tempting for this inquisitive student. In order to justify invading the ...
Thursday, February 9, 2017 by Amy

PHYSICS
A gun fires a shell at an angle of elevation of 30* with a velocity of 2000ms-1.(A)what is the range of the shell.
Thursday, February 9, 2017 by AFOLABI IDRIS.

Physics 202
An inquiring student that has a mass of 65.0 kg is watching a crane with a wrecking ball demolish a building next door. The wrecking ball is swinging parallel to the property fence between her house and the neighbor’s. In an effort to estimate the length of the cable on the ...
Thursday, February 9, 2017 by Angela

PHYSICS
A lemming runs horizontally off the side of a 27.8 m cliff at 1.12 m/s. How long will it take for the lemming to hit the water? How far will it travel in the horizontal direction?
Thursday, February 9, 2017 by Jay

physics
A sign with a mass of (24) kg is hanging in two wires both making an angle of (52) degrees with the vertical. Find the tension in one of the wires. Give your answer in newtons (N) and with 3 significant figures.
Thursday, February 9, 2017 by dalia

Physics
Consider a child standing on a beach who gets hit by a wave. The child weighs 30 kg, and the portion of the wave that hits the child contained 60 kg water. If the wave had a period of 2 seconds and a wavelength of 6 meters, how fast will the child be moving after it is hit by ...
Thursday, February 9, 2017 by Ellie

physics
if someone throws a .1kg ball at the speed of -25m/s, why is the average net force positive instead of negative?
Thursday, February 9, 2017 by homework

physics
a bird flies 3km west and then 4km south. find the resultant displacement of the bird
Thursday, February 9, 2017 by Holly

physics
a cyclist travels 2.5km east, then 10km south and finally 5km west. determine the cyclist's overall displacement from their starting point.
Thursday, February 9, 2017 by Holly

Physics
A 15.0 gram bullet with a speed of v is fired into a 400 gram block of wood that is initially at rest on a surface. The coefficient of kinetic friction between the block and the surface is 0.250. The block of wood is attached to a horizontal massless spring with a spring ...
Wednesday, February 8, 2017 by Claire

Physics
A boat starting on one side of the river heads to the south with a speed of 1.5 m/s, the river flows to the east at .8 m/s. What is the resultant velocity to the side of the river? And if the river is 50 m wide calculate the displacement of the boat
Wednesday, February 8, 2017 by Anonymous

Physics
3 identical point charges Q are placed at the vertices of equilateral triangle (length of each side is equal to 2m) if Q=60uC, what is the magnitude of Electrostatic force on any one of the charges.
Wednesday, February 8, 2017 by chris

physics
If 32s is required for an object to reach maximum height, what will be the time for an object to come back to its initial position a. 32s b. -32s c. 64s d. 16
Wednesday, February 8, 2017 by taroon

physics
In 5 seconds a car accelerate from 0 to 40 m/s. 20 sec after reaching 40m/s the car comes to a complete stop. if this deceleration takes 4 sec, how far has the traveled since its trip began? a)100m/s b)800m/s -c)980m/s- d)1140m/s e)1700m/s i got B but teach marked it wrong. ...
Wednesday, February 8, 2017 by Anonymous

physics
two balls are dropped in a vacuum. if one is caught in half the time as the other what is the difference in distance the balls traveled? a.1/4*t b.1/4*t^2 c.1/2*t^2 d.15/3*t e.15/4*t^2 I believe it is b. but i'm not 100% sure.
Wednesday, February 8, 2017 by Anonymous

physics
a box with a mass of 25kg is lifted (without acceleration) through a height of 2.0m, in order to place it upon the shelf of a closet. The value of acceleration due to gravity g= 9.8ms^2 How much work is required to lift the box to this position? i figured out the potential ...
Wednesday, February 8, 2017 by ryan

Physics
Sarah walks 5 miles 35 degrees north of east, and then decides to walk 6 miles due west. What is her final displacement? I drew it out, used the Pythagorean theorem and ended up with square root -11 which is obviously wrong. I'm really confused as to what to do with the angle ...
Wednesday, February 8, 2017 by Jack

physics
Four forces are acting on an object in static equilibrium: Force 1 has a magnitude of 46.0 N and is acting at an angle of (54) degrees above the positive x-axis. Force 2 has a magnitude of (42) N and is acting along the positive x-axis. Force 3 has a magnitude of 34.5 N and is...
Wednesday, February 8, 2017 by dalia

physics
. If planet Elijah has a mass of 6.0 x 106 kg and a radius of 4.0 x 104 km. What would be the force on the surface of the planet? (let the second mass equal 1 kg)
Wednesday, February 8, 2017 by someone

Physics
A locomotive pulls 12 identical freight cars. The force between the locomotive and the first car is 150.0 kN, and the acceleration of the train is 2 m/s2. There is no friction to consider. Find the force between the eleventh and twelfth cars. (Express your answer to two ...
Wednesday, February 8, 2017 by Tim

physics
A stationary skateboarder I with a mass of 50 kg pushes a stationary skateboarder II with a mass of 75 kg. After the push the skateboarder II moves with a velocity of 2 m/s to the right. What is the velocity of the skateboarder I?
Wednesday, February 8, 2017 by keven

physics
If a golden eagle is flying due west with a speed of 32 mph, and encounters a wind that blows it north at 11 mph, what is the resultant velocity of the eagle in m/s? At what angle must the eagle be heading in this direction?
Wednesday, February 8, 2017 by Jay

Physics
You decide to repeat Archimedes experiment and determine the density of a candle holder. you suspend it from a spring scale and scale reads 8.0N. You then lower the holder into a tub of water until completely submerged and it reads 5.0N. what is the volume and density of the ...
Tuesday, February 7, 2017 by eduardo

Physics
The resistance of 10 ft length of a 20 mil iron wire is 1.8 ohms. What is the resistivity of the iron?
Tuesday, February 7, 2017 by Mycah

physics/calculus
A stone is thrown straight up from the edge of a roof, 600 feet above the ground, at a speed of 12 feet per second. A. Remembering that the acceleration due to gravity is -32 feet per second squared, how high is the stone 6 seconds later? B. At what time does the stone hit the...
Tuesday, February 7, 2017 by kloe

physics
United States currency is printed using intaglio presses that generate a printing pressure of 8.1 x 104 lb/in2. A $20 bill is 6.1 in. by 2.6 in. Calculate the magnitude of the force (in pounds) that the printing press applies to one side of the bill.
Tuesday, February 7, 2017 by Tyler

physics
An airtight box has a removable lid of area 2.87 × 10-2 m2 and negligible weight. The box is taken up a mountain where the air pressure outside the box is 7.20 × 104 Pa. The inside of the box is completely evacuated. What is the magnitude of the force required to pull the ...
Tuesday, February 7, 2017 by Tyler

physics
Accomplished silver workers in India can pound silver into incredibly thin sheets, as thin as 3.00 x 10-7 m (about one hundredth of the thickness of a sheet of paper). Find the area of such a sheet that can be formed from 3.70 kg of silver.
Tuesday, February 7, 2017 by Tyler

Physics
I have this very confusing two part question that i am having trouble understanding. For the first question i first created a free body diagram to show the forces acting on both the boxes. However i am unsure of what to do after this since i don't understand how to use newtons...
Tuesday, February 7, 2017 by joe

physics
Two chambers are filled with a fluid. The ceiling of chamber 1 is at the same level as the floor of chamber 2. The pressure at the floor of chamber 2 is 1.2 × 105 Pa. If the area of the ceiling of chamber 1 is 2.0 m2, what is the magnitude F of the force exerted by the fluid ...
Tuesday, February 7, 2017 by Tyler

Physics
Car A is 12 m ahead of car B on a straight stretch of road. Car A starts from rest and accelerates away from B at 4.0 m/s2. Two seconds later B starts from rest and accelerates after A at 6.0 m/s2. How long will it take B to catch A? How far will B have travelled?
Tuesday, February 7, 2017 by John

Science physics
A uniform metres rod of weight 100N carries a weight of 40N and 60N suspended from the 20Cm and 90cm marks respectively, where will your pivot a knife edge to balance the rod.
Tuesday, February 7, 2017 by Obert

Physics
A ball of mass 8kg falls from a height of 100m,neglecting air resistance calculate it total energy after falling a distance
Tuesday, February 7, 2017 by Ewatomi

physics
Tarzan tries to cross a river by swinging from one bank to the other on a vine that is 11.2 m long. His speed at the bottom of the swing is 7.4 m/s. Tarzan does not know that the vine has a breaking strength of 1.0 ✕ 103 N. What is the largest mass that Tarzan can have and ...
Tuesday, February 7, 2017 by dan

Physics
An Air Craft Flies 800km Due East And Then 600km Due North.Determine The Magnitude Of Its Displacement.
Tuesday, February 7, 2017 by Ifeanyi

Physics
A ferry-boat is rectangular in shape, with an overall area of 30.0 m2. When the boat is loaded with gravel, it sinks to a depth of 2.8 m in the water. What is the total weight of the boat + gravel? Show your work.
Tuesday, February 7, 2017 by Lenny

Physics
If you suspend a 90-N rock beneath the surface of ethanol, the tension required to support it is only 60 N. What volume of ethanol (density of 789.2kg/cubic meter) must therefore be displaced? Show your work.
Tuesday, February 7, 2017 by Lenny

Physics
Explain in detail how you would find the density of an unknown high-density object if you had only the objects listed below.If you show calculations, make sure you define your variables.Assume all containers are large enough to hold the object.... You have: - beaker with ...
Tuesday, February 7, 2017 by Lenny

Physics
Some stoves use the heat produced by current flowing through a conductor. If the heating element (conductor) has a resistance of 30 ohms, how long will the burner have to work to heat 500 g of 30°C water up to its boiling point? The specific heat of water is 4.19 x 103 J/kg...
Tuesday, February 7, 2017 by Ellie

physics
an object starts from rest and accelerates uniformly to a speed of 100 m s^-1 after 5s. calculate the acceleration of the object.
Tuesday, February 7, 2017 by dave

Physics
A force of 800 N is required to move a 9000 N boat through the water with a speed of 20 m/s. The boat’s engine is providing energy at a rate of
Monday, February 6, 2017 by Garrett

physics
Blood flows through a major artery at 1.3 m/sfor 0.40 s, then at 0.70 m/sfor another 0.40 s through a smaller artery. Part A Is the average speed of the blood 1.0 m/s, greater than 1.0 m/s , or less than 1.0 m/s? Verify your answer to Part A by calculating the average speed.2sf
Monday, February 6, 2017 by hi

physics
can you graph this for me? In heavy rush-hour traffic you drive in a straight line at 12 m/s for 1.5 minutes, then you have to stop for 3.5 minutes, and finally you drive at 15 m/s for another 2.5 minutes. A Plot a position-versus-time graph for this motion. Your plot should ...
Monday, February 6, 2017 by ana22

physics
Explain in detail how you would find the density of an unknown high-density object if you had only the objects listed below.If you show calculations, make sure you define your variables.Assume all containers are large enough to hold the object.... You have: 1. - A spring scale...
Monday, February 6, 2017 by Anonymous

physics
Mrs. Johnson's kid is trying to drink with a straw that runs through an airtight cork in the top of a bottle of water. Please explain to her kid why he won't get any water.
Monday, February 6, 2017 by Anonymous

Physics
While driving in the rain at 30 m/s you notice that the raindrops appear to be going straight down. After dropping your little sister off at daycare you turn around and drive the opposite direction at the same speed. However now you notice that the rain is making an angle of ...
Monday, February 6, 2017 by Anonymous

Physics
You are on a tight budget so you’ve let your tires get more worn than they should and now their radius is 15 mm less than they were originally. Is your odometer over-estimating or under-estimating the distance you drive?
Monday, February 6, 2017 by Anonymous

Physics
While at the county fair you take a ride on the carousel and notice that it goes around once in 12 s. The radius of the carousel is 15 m. As the ride comes to an end, it slows down smoothly, coming to a stop in 2.5 revolutions. What is the magnitude of the rotational ...
Monday, February 6, 2017 by Anonymous

Physics
The amplitude of a spring oscillator decreases by 50% after 1 period. What is tgr amplitude after 3 oscillations? What is the time constant assuming that one period is 2seconds?
Monday, February 6, 2017 by Naida

Physics
A circus cat has been trained to leap off a 12-m-high platform and land on a pillow. The cat leaps off at v0 = 3.6 m/s and an angle θ = 37°
Monday, February 6, 2017 by Eric

physics
What is the ground velocity of an airplane if its air velocity is 800 km/h [E] and the wind velocity is 60 km/h [42 E of N]?
Monday, February 6, 2017 by malva

Physics
Explain in detail how you would find the density of an unknown high-density object if you had only the objects listed below.If you show calculations, make sure you define your variables.Assume all containers are large enough to hold the object.... You have: 1. - A spring scale...
Monday, February 6, 2017 by James

Physics
You want to carry an 800kg object into the air using a helium balloon. What size of a helium balloon (I'm looking for volume) would be required to accomplish such a task? Assume the density of air is 1.25 kg/m3 and the density of helium is 0.18 kg/m3.
Monday, February 6, 2017 by James

Physics
You drill a well to a depth of 100-m. Find the difference in water pressure, comparing the top and bottom of the well
Monday, February 6, 2017 by Stuart

physics
A hippo has a mass of 6000kg. When standing on 4 feet, how much pressure is exerted on the ground? Assume each foot has an area of 0.10 square meter. Show your work.
Monday, February 6, 2017 by Anonymous

physics
A hippo has a mass of 6000kg. When standing on 4 feet, how much pressure is exerted on the ground? Assume each foot has an area of 0.10 square meter. Show your work.
Monday, February 6, 2017 by Charlie

physics
Mrs. Johnson's kid is trying to drink with a straw that runs through an airtight cork in the top of a bottle of water. Please explain to her kid why he won't get any water.
Monday, February 6, 2017 by Lenny

physics
A hippo has a mass of 6000kg. When standing on 4 feet, how much pressure is exerted on the ground? Assume each foot has an area of 0.10 square meter. Show your work.
Monday, February 6, 2017 by Brett

physics
A ferry-boat is 4 m long and 6 m wide, and floats in fresh water. A 400kg horse is loaded onto the ferry. How much deeper will the ferry float when it is loaded with the horse? Show ALL of your work. Include units in your solution.
Monday, February 6, 2017 by Ronny

physics
Three cubic meters of liquid nitrogen has a mass about 2700 kg. When this much liquid nitrogen evaporates into gaseous air of density 1.25 kg/m3, what will its volume be? Show your work
Monday, February 6, 2017 by Stuart

PHYSICS
IP A tennis player moves back and forth along the baseline while waiting for her opponent to serve, producing the position-versus-time graph shown in the figure(Figure 1) .Without performing a calculation, indicate on which of the segments of the graph, A, B, or C, the player ...
Monday, February 6, 2017 by ana22

Physics
A man pulls a box with a force of 70N along the positive y-axis,while a boy pulls it with a force of 50N,making an angle of 80 degrees counter clock-wise with the positive y-axis. (i)In what direction should a second boy apply a force of 60N so that the box move along the ...
Monday, February 6, 2017 by Killian

physics
A particle has an acceleration of +6.24 m/s2 for 0.440 s. At the end of this time the particle's velocity is +9.36 m/s. What was the particle's initial velocity?
Monday, February 6, 2017 by ana22

PHYSICS
You are driving through town at 14 m/s when suddenly a car backs out of a driveway in front of you. You apply the brakes and begin decelerating at 3.3 m/s2. PART B)How much time does it take to stop?After braking half the time found in part A, is your speed 7.0 m/s, greater ...
Monday, February 6, 2017 by ana22

PHYSICS
In heavy rush-hour traffic you drive in a straight line at 12 m/s for 1.5 minutes, then you have to stop for 3.5 minutes, and finally you drive at 15 m/s for another 2.5 minutesPlot a position-versus-time graph for this motion. Your plot should extend from t=0 to t=7.5 minutes...
Monday, February 6, 2017 by ana22

PHYSICS
Blood flows through a major artery at 1.3 m/s for 0.40 s, then at 0.70 m/s for another 0.40 s through a smaller artery. Is the average speed of the blood 1.0 m/s, greater than 1.0 m/s, or less than 1.0 m/s ?Verify your answer to Part A by calculating the average speed.
Monday, February 6, 2017 by ana22

physics
You are driving through town at 14 m/s when suddenly a car backs out of a driveway in front of you. You apply the brakes and begin decelerating at 3.3 m/s2.How much time does it take to stop? After braking half the time found in part A, is your speed 7.0 m/s, greater than 7.0 ...
Monday, February 6, 2017 by ana22

Physics
A bird flies from the South Pole to the North Pole. Part of the journey is 1000 miles that takes 2 weeks. What is the bird’s velocity in that time? Show work for credit and include final units.
Monday, February 6, 2017 by Anonymous

Physics
When Reggie stepped up to the plate and hit a 0.150-kg fast ball traveling at 36.0 m/s, the impact caused the ball to leave his bat with a velocity of 45.0 m/s in the opposite direction. a. If the impact lasted for 0.002 s, what force did Reggie exert on the baseball? b. ...
Monday, February 6, 2017 by Hannah

Physics
A stone with mass 0.8kg is attached to one end of a string 0.9m long . The string will break if its tension exceeds 600N. The stone is whirled in a horizontal circle ,the other end of the string remains fixed. Find the maximum speed , the stone can attain without breaking the ...
Monday, February 6, 2017 by Swagat khanal

Physics
What is the displacement of 45° SE 13 km and 20° NE 14 km?? (With Solution)
Monday, February 6, 2017 by INeedThisToday(2/6/17)

Science
Physics A scientific instrument weighing 98 pounds on the Earth is transported to another planet whose mass is 1.7 Earth masses and whose radius is 0.7 Earth radii. What does this instrument weigh on this planet? To be graded correctly, enter the new weight in pounds (numbers ...
Monday, February 6, 2017 by Erika

physics
Trying to escape his pursuers, a secret agent skis off a slope inclined at 30° below the horizontal at 60 km/h. To survive and land on the snow 100 m below, he must clear a gorge 60 m wide. Does he make it? Ignore air resistance.
Sunday, February 5, 2017 by prashant

physics
Calculate the rotational inertia of a wheel that has a kinetic energy of 24,400 J when rotating at 677 rev/min. I know that I = mr^2 and that T = Ia; also I calculated 677rpm to be 70.9 radians/sec. But I don't understand how to integrate KE into this.
Sunday, February 5, 2017 by james

physics
How much time will it take a car travelling at 88 km/hr (55 mi/hr) to travel 500km? Show work for credit and include final units.
Sunday, February 5, 2017 by Anonymous

Physics
PART 1 Raft made of 2.2m long pine logs with Average diameter of logs 26cm.How many logs are needed to strap together to build raft to hold max 4 people? Density of log = 600 kg/m^3 Each people weights 512N PART 2 What percent of the logs is under water when you are on your ...
Sunday, February 5, 2017 by kely

Physics
Name any Margins of error that would happen in the lab "Which path requires the most energy? (gas)
Sunday, February 5, 2017 by Kevin

physics
An object is released from rest and falls in free fall motion. The speed v of the object after it has fallen a distance y is given by v2 = 2gy. In an experiment, v and y are measured and the measured values are used to calculate g. If the percent uncertainty in the measured ...
Sunday, February 5, 2017 by jane

physics
The energy source used to produce most of the electrical energy in the United States
Sunday, February 5, 2017 by sophia

physics
A small dog is trained to jump straight up a distance of 1.2 m. How much kinetic energy does the 7.2-kg dog need to jump this high? (The acceleration due to gravity is 9.8 m/s2.) Show your work for credit.
Sunday, February 5, 2017 by sophia

Physics
Huck Finn walks at a speed of 0.60 m/s across his raft (that is, he walks perpendicular to the raft’s motion relative to the shore). The raft is traveling down the Mississippi River at a speed of 2.20 m/s relative to the river bank. What is Huck’s velocity (speed and ...
Sunday, February 5, 2017 by Robert

Physics
A projectile is shot from the edge of a cliff 145m above ground level with an initial speed of 65.0 m/s at an angle of 37.0° with the horizontal. How far did the shot go horizontally?
Sunday, February 5, 2017 by Robert

Physics
Your gun is perfectly level with a monkey at a distance of 55 m. Your bullet is shot perfectly horizontal at a speed of v_0=38 m⁄s at the exact moment the monkey lets go of the branch. How far does the monkey fall before the bullet hits it?
Sunday, February 5, 2017 by Robert

Physics
During your trip in question 10, you encounter some construction. In 25 seconds, you have to slow from 70 mph to 55 mph. What is your acceleration in mph/s?
Sunday, February 5, 2017 by Robert

Physics
After today’s test, you are going to meet some friends at Disney World. The total distance to Disney World is 68 miles. If you make it there in 72 minutes, what is your average velocity in miles per hour?
Sunday, February 5, 2017 by Robert

Physics
Assume you have a canon aimed straight up. The cannonball is shot at a velocity of v_0=69 m/s. How high does the cannonball go? How much time does it take the cannonball to reach that height?
Sunday, February 5, 2017 by Robert

Science
Pls help me solve this question pls. A stone of mass 6.5kg is thrown vertically upward with velocity with 10m/s find a. the potential energy at the greatest height and the value of h .b the kinetic energy of reaching the ground again(g=10m/s2) in physics?
Sunday, February 5, 2017 by Joseph

physics
A ball is thrown horizontally from a window 27 m above the ground. The ball strikes the ground at a point 80 m from the base of the building. The acceleration due to gravity is 9.8 m/s2. What is the resultant velocity of the ball just before it strikes the ground? 37.76 m/s 25...
Sunday, February 5, 2017 by haya

physics
blood is pumped from the heart at a rate of 5.0l/min into the aorta (radius 1.0cm)determinethethe speed of the blood
Sunday, February 5, 2017 by moni

Physics
Raft made of 2.2m long pine logs.Average diameter of logs 26cm.How many logs are needed to strap together to build raft to hold max 4 ?What percent of the logs is under water when you are on your raft in the water with your friend?
Sunday, February 5, 2017 by kely

Physics
Raft made of 2.2m long pine logs.Average diameter of logs 26cm.How many logs are needed to strap together to build raft to hold max 4 people? What percent of the logs is under water when you are on your raft in the water with your friend?
Sunday, February 5, 2017 by kely

physics
The distance between two successive crests of a certain transverse wave is 1.13 m. 20 crests pass a given point along the direction of travel every 18.6 s. Calculate the wave speed. Answer in units of m/s. So far I have gotten 1.22 for my answer by 20/18.6 x 1.13. I also tried...
Saturday, February 4, 2017 by kate

physics ap
we'l find the time, t, for the ball to fall from the tabletop to the floor. use the equation Δy=viΔt+at^2/2. Take the vi to be zero and a to be 9.81 ±.02 m/s^2. you must first solve this equation for t. Δy=.922m what am i suppose to do with the acceleration because it has ...
Saturday, February 4, 2017 by Anthony

Physics
A police car stopped at a set of lights has a speeder pass it at 100 km/h. If the police car can accelerate at 3.6 m/s^2, how long does it take to catch the speeder?
Saturday, February 4, 2017 by Rayan

Physics
A hollow sphere has a uniform volume charge density of 4.61 nC/m3. The inner radius is a = 14.6 cm and the outer radius is b = 43.8 cm. What is the magnitude of the electric field at 21.9 cm from the center of the sphere? What is the magnitude of the electric field at 140. cm ...
Saturday, February 4, 2017 by Jacob

PHYSICS
A window washer pulls herself upward using the bucket-pulley apparatus.. Part A) How hard must she pull downward to raise herself slowly at constant speed? The mass of the person plus the bucket is 80 kg . Part B) If she increases this force by 16 %, what will her acceleration...
Saturday, February 4, 2017 by henry

physics
The cable supporting a 2150-kg elevator has a maximum strength of 2.2×104 N . What maximum upward acceleration can it give the elevator without breaking?
Saturday, February 4, 2017 by henry

Physics
phobos, a moon of mars has maas of 1.08 x 10^16 kg, and an average radius of 1.35x10^4 m. calculate the gravitational field strength at the surface of phobos
Saturday, February 4, 2017 by Nare

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