Saturday
December 10, 2016

Homework Help: Science: Physics

Recent Homework Questions About Physics

physics
An airplane is flying above the Earth's surface at a height of 10.5 km. The centripetal acceleration of the plane is 16.4 m/s2. What is the angular velocity of the plane moving in uniform circular motion? Take the radius of the earth to be 6400 km.
Tuesday, September 27, 2016 by jasmine

physics
You push a skateboard so that it rolls down the road at a speed of 1.20 m/s. You run after the skateboard at a speed of 3.30 m/s and while still behind the skateboard you jump off the ground at an angle of 28.0° above the horizontal hoping to land on the skateboard. How ...
Tuesday, September 27, 2016 by Anonymous

Physics
While standing at the edge of the roof of a building, you throw a stone upward with an initial speed of 6.05 m/s. The stone subsequently falls to the ground, which is 12.7 m below the point where the stone leaves your hand. At what speed does the stone impact the ground? How ...
Tuesday, September 27, 2016 by Kaylee

physics
how do you solve for tr and tf?
Tuesday, September 27, 2016 by hansel

Physics
A taxicab moves 5 blocks due north, 5 blocks due east, and another 2 blocks due north. Assume all blocks are of equal size. What is the magnitude of the taxi's displacement?
Tuesday, September 27, 2016 by Mary

Physics
At a Grand Prix, drivers sustain lateral accelerations (sideways) about five times the acceleration due to gravity while driving around curves at speeds of 288 km/h. Assuming a circular curve, find the radius of that section of the track.
Tuesday, September 27, 2016 by Omar Tahir

Physics
a race track is 500 meters long.car A moves with a constant velocity of 40m/s, approaching the start line.when car A reaches the starting line, car b, who is waiting stationary at the starting line, accelerates at a rate of 10m/s^2. which car will finish first?
Tuesday, September 27, 2016 by Kassy

Physics
1. You apply a force of 11.8 N on a 5.1 kg object, pushing it horizontally across a surface where the coefficient of kinetic friction is 0.44. (a) Determine the frictional force acting. (b) Determine the object's acceleration. 2. A container of mass 0.5 kg slides along the...
Tuesday, September 27, 2016 by Shawn

Physics .. hard problem
An overly eager physics student wants to confirm that the acceleration of gravity is ag=9.8 m/s^2. To check this, the student steps off the roof of the Sears Tower (height at the sky deck 427m). The rocketeer (who arrived five seconds after the student stepped off) uses a ...
Tuesday, September 27, 2016 by Morgan

Physics
Running on a treadmill is slightly easier than running outside because there is no drag force to work against. Suppose a 60 kg runner completes a 5.0 km race in 19 minutes. Part A Determine the drag force on the runner during the race. Suppose that the cross section area of ...
Tuesday, September 27, 2016 by Anonymous

Physics
A hydrometer has a weighed bulb of volume 30cm3 and a uniform cross sectional area of 1cm3. When floating in water 3cm of the stem is immersed. What is the length of the stem when immersed in water when the hydrometer floats in the liquid of density 0.89gcm-3?
Tuesday, September 27, 2016 by Emeka

Physics
You are walking a dog when the dog sees a cat and runs away from you. You immediately run after the dog at 5.50 m/s. You jump at an angle of 29.0° to try and catch the dog. While you are in the air the dog is able to move an extra 1.34 m away from you. If you are able to ...
Tuesday, September 27, 2016 by AL

physics
A Zip-liner is gliding along a horizontal wire over a lake. They must release themselves from the wire and drop down to the water to get off the zip-line. They are 6.50 m above the water and release themselves when they are travelling at 2.20 m/s. How fast are they travelling ...
Tuesday, September 27, 2016 by Anonymous

Physics
An escalator is 20 m long. If a person stands on the 'up' side, it takes 50 seconds to ride to the top. a) If a person walks up the escalator at a speed of 0.5 m/s relative to the escalator, how long wil it take to get to the top? b) If a person walks down the 'up...
Tuesday, September 27, 2016 by Anonymous

Physics
A golfball with an initial speed of 50 m/s lands exactly 240 m downrange on a level course. a) Neglecting air friction, what two projection angles would achieve this result? b) What is the maximum altitude reached by the ball, using each of the two angles from Part A?
Tuesday, September 27, 2016 by Anonymous

Physics
An arrow was fired horizontally from a platform above the ground. Exactly 3 sec after it was released, it struck the ground at an angle of 45o from the horizontal. 1) With what speed and from what height was it launched?
Tuesday, September 27, 2016 by Anonymous

Physics
A ball thrown horizontally from the top of a 13m high building strikes the ground 5m from the base of the building. 1) With what velocity was the ball thrown?
Tuesday, September 27, 2016 by Anonymous

Physics
We have a charge q = -0.6 x 10^-6 C at origin. And a vector r = (4 m, 3 m, 0 m). Find the electric field E(r) as a vector expressed in terms of i j and k. What is the distance in this case? Magnitude of r? Also, how do I find the Electric field as a vector? I'm stuck..
Tuesday, September 27, 2016 by Sarah

physics
A plane needs to drop supplies off to victims of natural disasters around the world. The first stop is for flood victims but they must drop the box so it lands perfectly on a target. If they are flying at 191 m/s and are 84.0 m above the ground, what distance before the target...
Tuesday, September 27, 2016 by jasmine

physics
A plane needs to drop supplies off to victims of natural disasters around the world. The first stop is for flood victims but they must drop the box so it lands perfectly on a target. If they are flying at 153 m/s and are 126 m above the ground, what distance before the target ...
Tuesday, September 27, 2016 by Anonymous

physics
A hockey player lobs a puck at an empty net with an initial velocity of 8.00 m/s at an angle of 26.0°. What is the maximum height the puck reaches?
Tuesday, September 27, 2016 by Anonymous

physics
some rocks melt at 1800farenheit. what is the temperature in the celsius scale ?
Tuesday, September 27, 2016 by k

physics
The normal temperature of the human body is 37Celsius. a baby temperature is 98farenheit. DOes the baby a fever? Why?
Tuesday, September 27, 2016 by k

physics
You create a centripetal force apparatus consisting of a mass m attached to the end of a string and spun in a uniform circular path of radius R, where R = 65.5 cm. The mass is spun in a uniform circular path for 60.0 seconds, during which a total of 117 revolutions are ...
Monday, September 26, 2016 by Anonymous

physics
Two trains 150 kilometer apart travel towards each other on parallel tracks, each moving at 25 kilometer per hour. A bird flies back and forth between the two trains at 50 kilometer per hour, until the train passes each other how far does the bird fly?
Monday, September 26, 2016 by Justine

Physics
What is the critical angle of benzene is 1.5
Monday, September 26, 2016 by Nayeem

physics
if you see the flash of a lighting bolt and 3 seconds later you hear the clap of thunder. how far away was the lighting bolt?
Monday, September 26, 2016 by ren

physics
a 15kg rock falls from the top of a building 8.0m high. Find its PE and KE a.when at rest at the top of the building b. halfway down the ground c. when it reaches the ground d.speed when it reaches the ground
Monday, September 26, 2016 by Anonymous

Physics
A pilot wants to fly from city A to city B, a distance of 394 km at an angle of 10.0 degrees west of north. The pilot heads directly toward city B, with an air speed of 203 km/h. After flying for 1.0 hours, the pilot finds she is 17.5 km off course to ...
Monday, September 26, 2016 by Jake

Physics
You are on a new planet and want to know the acceleration due to gravity. You take a ball and kick it at an angle of 10.0° at a speed of 23.5 m/s. If the ball is in the air for 7.10 s, what is the magnitude of the acceleration due to gravity?
Monday, September 26, 2016 by Freya

Physics
A dart is being thrown at a board that is 2.00 m away. When it hits the board it is 0.306 m below the point where it was aimed and it was thrown at 8.00 m/s. How long was the dart in the air?
Monday, September 26, 2016 by Kate

physics
alculate the energy content of a. a 16000lb elevator at a height of 100ft b. a 200kg horse moving at 10m/s c. a gram of nuclear fuel containing 20pg of mass convertible to E.
Monday, September 26, 2016 by kled

Physics/math
How do you convert 50.4 mi/h to m/s? 1 mi = 1609 m. Please explain it to me because I don't get it
Monday, September 26, 2016 by JIna

Physics
A 2.83-kg object is thrown vertically upward from the surface of Mars, where the acceleration due to gravity is g1 = 3.71 m/s2. The initial velocity is v1, and the object reaches a maximum height of y1. What is the maximum height, y2, if the object is thrown with a speed of v2...
Monday, September 26, 2016 by Morgan

Physics
On the Moon, the acceleration due to gravity is 1.62 m/s2. How far would a 13 g rock fall from rest in 5.5 seconds if the only force acting on it was the gravitational force due to the Moon?
Monday, September 26, 2016 by Morgan

Physics
While standing at the edge of the roof of a building, you throw a stone upward with an initial speed of 6.11 m/s. The stone subsequently falls to the ground, which is 12.7 m below the point where the stone leaves your hand. At what speed does the stone impact the ground? How ...
Monday, September 26, 2016 by Morgan

physics
a ball is thrown upward from a bridge with a speed of 48 ft/s. It misses the bridge on way down and lands in water 160 ft. below. Find how long the ball rises, how high it goes, how long it is in the air, and its velocity when it strikes the water.
Monday, September 26, 2016 by mia

physics
a child and a bicycle have a mass of 45kg together. The child rides the bicycle 1800m in 10 min at a constant speed. what is the kinetic energy of the system?
Monday, September 26, 2016 by kled

physics
a 200kg body raised to a height of 10m. what is the gravitational potential energy of the system?
Monday, September 26, 2016 by kled

physics
calculate the energy content of a. a 16000lb elevator at a height of 100ft b. a 200kg horse moving at 10m/s c. a gram of nuclear fuel containing 20pg of mass convertible to E.
Monday, September 26, 2016 by kled

physics
a 15kg rock falls from the top of a building 8.0m high. Find its PE and KE a.when at rest at the top of the building b. halfway down the ground c. when it reaches the ground d.speed when it reaches the ground
Monday, September 26, 2016 by kled

physics
a man pushes a lawnmower 50ft in 5s by exerting a force of 30lb at an angle of 53degrees with the horizon. find the work done and the average power expended in horsepower.
Monday, September 26, 2016 by kled

physics
We have a charge q = -0.6 x 10^-6 C at origin. And a vector r = (0 m, -5 m, 0 m). Find the electric field E(r) as a vector expressed in terms of i j and k. Ok so far I got E(r) = k (0.6e-6)/(5)^2 = 216 N/C. But this is not a vector, how do I express this in terms of I j and K?
Monday, September 26, 2016 by Stephanie

Physics
You are trying to climb a castle wall so, from the ground, you throw a hook with a rope attached to it at 22.3 m/s at an angle of 55.0° above the horizontal. If it hits the top of the wall at a speed of 15.4 m/s, how high is the wall?
Monday, September 26, 2016 by Justine

Physics
Two kittens are running toward each other, one is named Chloe and the other is named Luna. Chloe runs at a speed of 2.40 m/s and Luna runs at a speed of 1.60 m/s. If Chloe jumps at an angle of 22.0° while still running toward Luna, at what distance from Luna should Chloe ...
Monday, September 26, 2016 by Justine

physics
A car travelling along the road at 8 m/s.it accelerates at 1m/s square fir a distance of 18 km.how fast is it then travelling
Monday, September 26, 2016 by vishu

physics
a 15kg rock falls from the top of a building 8.0 high. Find its PE and KE a.when at rest at the top of the building b. halfway down the ground c. when it reaches the ground d.speed when it reaches the ground
Monday, September 26, 2016 by k

physics
a man pushes a lawnmower 50ft in 5s by exerting a force of 30lb at an angle of 53degrees with the horizon. find the work done and the average power expended in horsepower. Answer Please need help
Monday, September 26, 2016 by k

physics
a man lifts a 2 kg load to a height of 3m in 3 seconds. how much work was done ? how much power was demonstrated?
Monday, September 26, 2016 by khaled

Physics continued
Sorry, I didn't see that there was a second part to the question. What is the difference between this one and the previous question I posted? The x and y components of a certain force are measured and found to be Fx = 68 ± 3N and Fy = 42 ± 2 N, respectively. ...
Monday, September 26, 2016 by Timothy

physics
What equation do I use to find this? Thanks The x and y components of a certain force are measured and found to be Fx = 68 ± 3N and Fy = 42 ± 2 N, respectively. Calculate the error associated with the magnitude of this force?
Monday, September 26, 2016 by Timothy

Physics
Please help me with this its very hard to visualize the problem. The analytical method of adding vectors expressed in terms of their components may be applied to vectors in three dimensions, for which graphical work is inconvenient. Find the magnitude of the resultant of the ...
Monday, September 26, 2016 by Donna

Physics
I am given the x and y components of a force and it is asking me to calculate the direction of this force or find the angle in degrees with respect to the y-axis. How do I go about doing this? Thank you in advance.
Monday, September 26, 2016 by Donna

Physics
A science student is riding on a flatcar of a train along a strait, horizontal track at a constant speed of 12.0 m/s. The student throws a ball into the air along a path he judges to make an initial angle 65. deg with the horizontal and to be in line with the track. The ...
Sunday, September 25, 2016 by Mary

Physics
To give a 19-kg child a ride, two teenagers pull on a 3.8-kg sled with ropes, as indicated in the figure . Both teenagers pull with a force of 55 N at an angle of 35 ∘ relative to the forward direction, which is the direction of motion. In addition, the snow exerts a ...
Sunday, September 25, 2016 by jonge

Physics
1. A dog sits under the only shade tree in its territory. Suddenly the dog desires to dig a previously buried bone. From the tree the dog goes 13 meters at 22.6° north of east. Not finding the bone there the dog then goes 17 meters at 61.9° north of west. Digging at ...
Sunday, September 25, 2016 by Isabel

physics
a student weighing 160 pounds hangs for dear life from a cable tied to two other cables fastened to a support as shown above. the upper cables make angles of 39 and 55 with the horizontal. these upper cables are not as strong as the vertical cable and will break if the tension...
Sunday, September 25, 2016 by Anonymous

Physics
A batted baseball leaves the bat with a velocity of 41.4 m/s at an angle of 51.2°. If the ball just barely clears the 3.05 m (10 ft) center field wall, a. How long was the ball in the air? ___s b. What must the range be from home plate to the center field wall? ___m c. How...
Sunday, September 25, 2016 by Eric

Physics
An object of mass m1= 2.90 kg placed ona. Frictionless, horizontal table is connected to a string that passes over a pulley and then is fastened to a hanging object of mass m2= 8.70 kg. Draw free- body diagrams of both objects. I've seen many people have a similar topic to...
Sunday, September 25, 2016 by Keef sosa

physics
part a of the drawing shows a bucket of water suspended from the pulley of the well; the tension in the roof is 92N. part b shows the same bucket of water being pulled up from the well at a constant velocity. what is the tension in the rope in part b?
Sunday, September 25, 2016 by aljhun

Physics
You push a skateboard so that it rolls down the road at a speed of 0.600 m/s. You run after the skateboard at a speed of 3.50 m/s and while still behind the skateboard you jump off the ground at an angle of 22.0° above the horizontal hoping to land on the skateboard. How ...
Sunday, September 25, 2016 by Jim

Physics
You are on a new planet and want to know the acceleration due to gravity. You take a ball and kick it at an angle of 26.0° at a speed of 21.0 m/s. If the ball is in the air for 7.30 s, what is the magnitude of the acceleration due to gravity?
Sunday, September 25, 2016 by Fred

Physics
A 1.00 kg box, initially at rest, is pulled across a table with a force of 3.00 N. (a) Will the box move if the coefficient of friction is 0.45? (b) What is the coefficient of friction if the box just begins to move? (c) What is the acceleration of the box if the coefficient ...
Sunday, September 25, 2016 by Lorenzo

Physics
Block A (Mass = 2.319 kg) and Block B (Mass = 1.870 kg) are attached by a massless string as shown in the diagram. Block A sits on a horizontal tabletop. There is friction between the surface and Block A. The string passes over (you guessed it) a frictionless, massless pulley...
Sunday, September 25, 2016 by Plase help soon

physics steve or damon help!!!!
SIG FIGS. how many sig figs in 6:70. hOW TO FIND SIG FIGS IN TIMe.
Sunday, September 25, 2016 by brahtherfrmanothermather

Physics
Judy walks a certain distance due north, then walks twice as far due west. At the end of her trip, the straight-line distance from her starting point to her final position is 112m. a) What is the length of each leg of the trip? b) What is the direction of her total ...
Sunday, September 25, 2016 by Anonymous

Physics
An airplane, traveling 142.5 km/hr at the moment it touches the runway, runs off the end of the runway still traveling at 36.7 km/hr. If the plane’s rate of deceleration was -1.6 m/s2, how long and how far did the plane travel along the runway?
Sunday, September 25, 2016 by Michelle

Physics
A deer runs into the road 1.24 km in front of a car. The driver, traveling at 70.5 km/hr, sees the deer and slams on the brakes which decelerates the car at a rate of 3.2 x 10-1 m/s2. Will the driver hit the deer?
Sunday, September 25, 2016 by Michelle

Physics
A ball is thrown straight down with a velocity of 12 m/s; what will be its velocity 2.0 s after being released? Please help me solve this!!
Sunday, September 25, 2016 by Student

Physics
Block A (Mass = 2.319 kg) and Block B (Mass = 1.870 kg) are attached by a massless string as shown in the diagram. Block A sits on a horizontal tabletop. There is friction between the surface and Block A. The string passes over (you guessed it) a frictionless, massless pulley...
Sunday, September 25, 2016 by Josh

Physics
A train travelling at a constant speed of 100 km/h travels west for 45 minutes, northwest for 30 minutes and finally north for 15 minutes. What is the trains average velocity for the trip?
Sunday, September 25, 2016 by Instantaneous

Physics
Ximena stands near the edge of a cliff 20 m above her friend Javier. If she throws a sandwich to Javier at an angle = 30 below the horizontal and it reaches him in 1.0 s, ignoring air resistance, what was the magnitude of the sandwich's initial velocity? A. 20 m/s B. 30 m/...
Sunday, September 25, 2016 by Roy

Physics
Block A (Mass = 2.319 kg) and Block B (Mass = 1.870 kg) are attached by a massless string as shown in the diagram. Block A sits on a horizontal tabletop. There is friction between the surface and Block A. The string passes over (you guessed it) a frictionless, massless pulley...
Sunday, September 25, 2016 by Max

Physics
You throw a water balloon hoping to hit your sibling. You throw it at an angle of 21.0° at 5.50 m/s. It ends up leaving your hand at a height of 1.70 m above the ground. It completely misses your sibling and breaks on the ground. How far did the water balloon travel?
Sunday, September 25, 2016 by Caroline

Physics
You push a skateboard so that it rolls down the road at a speed of 0.700 m/s. You run after the skateboard at a speed of 3.90 m/s and while still behind the skateboard you jump off the ground at an angle of 28.0° above the horizontal hoping to land on the skateboard. How ...
Sunday, September 25, 2016 by Caroline

Physics
A cheetah can maintain its maximum speed of 29.5 m/s for only 35.3 seconds. What is the maximum distance a gazelle running at 26.2 m/s must be ahead of the cheetah to have a chance of escaping?
Sunday, September 25, 2016 by Josh

Physics
A mass (m1) is connected by a light string that passes over a massless frictionless pulley to a mass (m2) sliding on a horizontal surface. The coefficient of kinetic friction between the m2 and the surface is 0.25. If m1=1.0kg and m2=2.0kg then what is the acceleration of the ...
Sunday, September 25, 2016 by Bex

physics
a body is moving with a velocity of 20 meter per second is apply abrack such that it stop in 2 second mass of body is 20 kg find the forse appley by brack
Sunday, September 25, 2016 by pankaj

Physics
Block A (Mass = 2.319 kg) and Block B (Mass = 1.870 kg) are attached by a massless string as shown in the diagram. Block A sits on a horizontal tabletop. There is friction between the surface and Block A. The string passes over (you guessed it) a frictionless, massless pulley...
Sunday, September 25, 2016 by ASak

Physics
A body slides down from the rest from the top of6.4m long rough inclined plane at 30 degree with the horizontal.find the time taken by the body in reaching the bottom of the plane. Take mu k=0.2 and g=10m/s2
Sunday, September 25, 2016 by Anonymous

Physics
You step onto a hot beach with your bare feet. A nerve impulse, generated in your foot, travels through your nervous system at an average speed of 152 m/s. How much time does it take for the impulse, which travels a distance of 1.65 m, to reach your brain?
Sunday, September 25, 2016 by Sherlie

Physics
For a standard production car, the highest road-tested acceleration ever reported occurred in 1993, when a Ford RS200 Evolution went from zero to 26.8 m/s (60 mi/h) in 3.596 s. Find the magnitude of the car's acceleration.
Sunday, September 25, 2016 by Sherlie

Physics
A infinite wire carrying a current 5A is bent at right angle find the magnetic Induction at a point on the perpendicular to the wire through its point of bending at a distance 35 cm from the corner
Sunday, September 25, 2016 by Mia

Physics
1) A 2.5kg durian falls from a tree with a height of 30m. Determine the energy before it falls in Joule. 2) A 2.5kg durian falls from a tree with a height of 30m. Determine the velocity when it drops 20m from the ground. 3) A 2.5kg durian falls from a tree with a height of 30m...
Sunday, September 25, 2016 by Enileda

Physics
You push a block of mass m up a plane inclined at angle θ at constant velocity v with a force F parallel to the inclined plane. The coefficient of kinetic friction between the block and the plane is µk. Which is the correct equation for F? (g = gravitational ...
Saturday, September 24, 2016 by Rick

Physics
While playing catch with your sister, you accidentally throw a tennis ball past her and horizontally out the window of your third floor apartment. If a window washer is startled by the passing tennis ball and drops her sponge from rest at that very moment, which describes the ...
Saturday, September 24, 2016 by Lyon

Physics
A missile is fired with a launch velocity of 15000 ft/s at a target 1200 miles away. At what angle must it be fired to hit the target? how long after it is fired will the target be hit?
Saturday, September 24, 2016 by Aria

Physics
If a dog chases its tail in a perfect circle of radius r at constant speed v, which of the following is true? A. The dog's acceleration is zero. B. The dog's velocity is constant. C. The sum of the forces, F , acting on the dog is zero. D. The time it takes the dog to ...
Saturday, September 24, 2016 by Lyon

Physics
Ximena stands near the edge of a cliff 20 ma bove her friend Javier. If she throws a ball to Javier at an angle = 30 below the horizontal and it reaches him in 1.0 s, ignoring air resistance, what was the magnitude of the sandwich's initial velocity? (use g = 10 m/s2)
Saturday, September 24, 2016 by Tom

physics
HARRY GIVES SAM A 30m head start in 100m dash. Harry can run 10m/s, while sam only runs 6.0 m/s per second, how much of a head start does sam need to win!
Saturday, September 24, 2016 by brahtherfrmanothermather

Physics
Two kittens are running toward each other, one is named Chloe and the other is named Luna. Chloe runs at a speed of 2.80 m/s and Luna runs at a speed of 1.60 m/s. If Chloe jumps at an angle of 17.0° while still running toward Luna, at what distance from Luna should Chloe ...
Saturday, September 24, 2016 by Tom

Physics
Four charges are located at the four corners of a square of side b: Q1 = 3 nC at the top right corner, Q2 = -4 nC at the bottom right corner, Q3 = 5 nC at the top left corner, Q4 = 7 nC at the bottom left corner. What is the electric field at the midpoint between Q3 and Q4?
Saturday, September 24, 2016 by Steve

Physics
An electric dipole p-> (-> is vector symbol) where p-> = (5x10^-15 C m, -5x10^-15 C m, 0 C m) located at r-> = (0 m, -0.005 m, 0m) Q = 1x10^-6 C at origin. What's the torque on the dipole?
Saturday, September 24, 2016 by Jan

Physics
You are walking a dog when the dog sees a cat and runs away from you. You immediately run after the dog at 4.90 m/s. You jump at an angle of 30.0° to try and catch the dog. While you are in the air the dog is able to move an extra 1.72 m away from you. If you are able to ...
Saturday, September 24, 2016 by Tom

Physics
Block A (Mass = 3.500 kg) and Block B (Mass = 2.450 kg) are attached by a massless string Block A sits on a horizontal tabletop. There is friction between the surface and Block A. The string passes overa frictionless, massless pulley. Block B hangs down vertically as shown. ...
Saturday, September 24, 2016 by ASak

Physics
Two kittens are running toward each other, one is named Chloe and the other is named Luna. Chloe runs at a speed of 2.00 m/s and Luna runs at a speed of 1.20 m/s. If Chloe jumps at an angle of 37.0° while still running toward Luna, at what distance from Luna should Chloe ...
Saturday, September 24, 2016 by Brooklyn

Physics
A BMX rider is coming up to a ramp that is set to 23.0° and the end point is 1.60 m above the ground. They travel up the ramp at a steady speed of 9.20 m/s. What speed will they have just before they hit the ground?
Saturday, September 24, 2016 by Brooklyn

Physics
Block A (Mass = 3.146 kg) and Block B (Mass = 2.330 kg) are attached by a massless string Block A sits on a horizontal tabletop. There is friction between the surface and Block A. The string passes overa frictionless, massless pulley. Block B hangs down vertically as shown. ...
Saturday, September 24, 2016 by Quaz

Physics
"You can jump 2 feet vertically on Earth. Figure out how high you would be able to jump on the Moon, where acceleration due to gravity is ⅙ that of Earth. Assume you launch upwards with the same speed on the Moon as you do on the Earth." I've already ...
Saturday, September 24, 2016 by BunBun

Physics
You are walking a dog when the dog sees a cat and runs away from you. You immediately run after the dog at 4.20 m/s. You jump at an angle of 28.0° to try and catch the dog. While you are in the air the dog is able to move an extra 1.57 m away from you. If you are able to ...
Saturday, September 24, 2016 by Brooklyn

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