Thursday

October 27, 2016
**PHYSICS CLASS 9**

A car moves at a speed of 40km/h, It is stopped by applying brakes which produces a uniformacceleration of -0.6m/s2. How much distance will the vehicle move before coming to stop?

*Wednesday, August 31, 2016 by JAYITA CHAUDHURI*

**Physics **

Write 2.38x10 to the 6th power in standard notation

*Wednesday, August 31, 2016 by Steph*

**Physics**

How much work is required to lift a bag of wheat (mass 50kg) to a height of 2.4m?

*Wednesday, August 31, 2016 by Abbey*

**Physics**

A small car has a mass of 300 kg and it is brought to rest in 4 seconds from a speed of 20 metres per second.If there is no resistance to motion,find the force exerted by the brakes

*Wednesday, August 31, 2016 by Kila*

**physics**

The periodic time of simple pendulum varies directly as the mass(m) of a Bob, length (l) of the place where the pendulum is suspended. determine the expression of periodic time(t)

*Wednesday, August 31, 2016 by kinyua*

**Physics**

A squash ball typically rebounds from a surface with 25% of the speed with which it initially struck the surface. Suppose a squash ball is served in a shallow trajectory, from a height above the floor of 39 cm, at a launch angle of 6.0° above the horizontal, and at a ...

*Tuesday, August 30, 2016 by Kendall*

**Physics**

The roof of a two-story house makes an angle of 29° with the horizontal. A ball rolling down the roof rolls off the edge at a speed of 4.5 m/s. The distance to the ground from that point is 8.2 m. (a) How long is the ball in the air? (b) How far from the base of the house ...

*Tuesday, August 30, 2016 by Kendall*

**physics**

you are driving home from school steadily at 95 km/h for 180 km. It then begins to rain and you slow down to 65 km/h. You arrive home after driving 4.5 hours. How far is your hometown from school? x=180km + (95km/h)(4.5h) + (1/2)(-30km/h)(4.5h)^2 I calculated 303.75 km, but my...

*Tuesday, August 30, 2016 by Anonymous*

**Physics**

An archer fires an arrow, which produces a muffled "thwok" sound after it hits a target. If the archer hears the "thwok" exactly 1.2 s after firing the arrow and the average speed of the arrow was 48 m/s, what was the distance separating the archer and the ...

*Tuesday, August 30, 2016 by Anonymous*

**physics**

a charge of 6mC is placed in each corner of a square 1m on each side. determine the magnitude and direction on each side

*Tuesday, August 30, 2016 by abby*

**Physics **

Need someone to check my work and answers: At the instant the traffic light turns green, a car that has been waiting at an intersection starts ahead with a constant acceleration of 2.80 m/s2. At the same instant a truck, traveling with a constant speed of 20.0 m/s, overtakes ...

*Tuesday, August 30, 2016 by Howard*

**Physics **

A student travels 300m towards North and then 400m towards East to reach his school. Calculate the distance of his school from his home.

*Tuesday, August 30, 2016 by Crystal *

**Physics**

The first meters of a 100-meter dash are covered in 2 seconds by a sprinter who starts from rest and accelerates with a constant acceleration. The remaining 90 meters are run with the same velocity the sprinter had after 2 seconds. a. Determine the sprinter's constant ...

*Monday, August 29, 2016 by Allyson*

**PHYSICS**

Runner A is initially 5.3 km west of a flagpole and is running with a constant velocity of 8.1 km/h due east. Runner B is initially 4.7 km east of the flagpole and is running with a constant velocity of 7.8 km/h due west. How far are the runners from the flagpole when their ...

*Monday, August 29, 2016 by tyler*

**physics**

Runner A is initially 5.3 km west of a flagpole and is running with a constant velocity of 8.1 km/h due east. Runner B is initially 4.7 km east of the flagpole and is running with a constant velocity of 7.8 km/h due west. How far are the runners from the flagpole when their ...

*Monday, August 29, 2016 by sofia*

**Physics**

At which point or points is the electric field zero in figure? I can not post the picture, but this is what it looks like: 1 2 3 4(4+)5 6(-)7 8 9 10 The (4+) is a proton with 4 charges. The (-) is an electron with 1 charge. They are on a number line 1-10. The proton is between...

*Monday, August 29, 2016 by Brittany*

**physics**

Runner A is initially 6.0 km west of a flagpole and is running with a constant velocity of 7.8 km/h due east. Runner B is initially 4.2 km east of the flagpole and is running with a constant velocity of 7.6 km/h due west. What will be the distance of the two runners from the ...

*Monday, August 29, 2016 by adam*

**physics**

Find the density of the earth if its mass is 6×10^3kg and radius is 6.4×10^3km

*Monday, August 29, 2016 by cadaawe*

**physics**

A 1000-kg airplane moves in straight flight at constant speed. The force of air friction is 1800 N. The net force on the plane is ?

*Monday, August 29, 2016 by Mahmoud*

**physics**

A wire of nichrome of length 80cm has a resistance of 50 ohms. if the wire is four folded, find new resistance.

*Monday, August 29, 2016 by vanditha*

**Physics**

A car, in overtaking trailer, uniformly accelerated its speed from 40 kph to 90 kph in 8 seconds. Calculate the distance traveled during the period of acceleration.

*Monday, August 29, 2016 by Unknown*

**Physics**

Hi everybody! I need this quick answer, please help! The beam AB in the figure has length 3L and uniform section stiffness EI. The beam is fixed at A(x=0) and loaded by an upward concentrated force, P, applied at its free end B(x=3L). A concentrated moment Q is also applied, ...

*Sunday, August 28, 2016 by carolina02*

**Bio physics chemistry pre medical **

Methane react with steam to form h2 and co. . what volume of h2 can be obtained from 100cmcube of methane at the standard temperature and pressure? ?

*Sunday, August 28, 2016 by Hania*

**Bio physics chemistry pre medical **

The vitamin a has a molecular formula c 20 h 30 o. How much no of molecules will be vitamin a has in 500mg capsule?

*Sunday, August 28, 2016 by Anonymous*

**Bio physics chemistry pre medical **

Vitamin a has a molecular formula c 20 h 30 o. How much no of molecules will vitamin a contian in 500mg capsule? ? Plz tell me now tomorrow is my test .I will be very grateful of u. .

*Sunday, August 28, 2016 by Hania*

**physics**

a ball projected vertically upwards from the top of the tower 60 meters high with a velocity of 30 meters per second. what is the maximum height above the ground? how long does it take to reach the ground?

*Sunday, August 28, 2016 by richard*

**Physics**

Initial Statement: A soccer ball is kicked with an initial horizontal velocity of 15 m/s and an initial vertical velocity of 14 m/s. 1) What is the initial speed of the ball? 20.518 2) What is the initial angle θθ of the ball with respect to the ground? 43.025 3) ...

*Sunday, August 28, 2016 by Aidan*

**physics**

Simpson drives his car with an average velocity of 48.0 km/ to the east. How long will it take him to drive 144 km on a straight highway?

*Sunday, August 28, 2016 by monet*

**Physics **

Michael flies in an airplane due north to Michigan. The pilot encounters a direct crosswind from the west of 120 mph. What direction must the pilot steer in order to end up with a resultant of due north and average velocity of 120 mph? Measure and calculate the speed of the ...

*Sunday, August 28, 2016 by Jennifer*

**Honors Physics**

How do you determine the mass of fuel in a semi truck?

*Sunday, August 28, 2016 by Leona*

**Physics**

The driver of a sport car pushed down the accelerator so that the engine pushes the care forward with a force of 2500N,s tarting from rest. How fast the car can go after 20s later? I have tried this by using v=u+at but i don't have a. From F=ma, i cant get the value of a ...

*Sunday, August 28, 2016 by Tan*

**Bio physics chemistry pre medical **

Vitamin a has a molecular formula c 20 h 30 o. How much no of molecules will vitamin a contian in 500mg capsule? ? Plz tell me now tomorrow is my test .I will be very grateful of u. .

*Sunday, August 28, 2016 by Hania*

**Bio physics chemistry pre medical **

Methane react with steam to form h2 and co. . what volume of h2 can be obtained from 100cmcube of methane at the standard temperature and pressure? ?

*Sunday, August 28, 2016 by Hania*

**PHYSICS**

JOHN WANTS TO PADDLE HIS CANOE ACROSS A RIVER THAT IS 200M WIDE, HE STARTS FROM THE EAST SIDE. THE WATER CURRENT FLOWS NORTH-SOUTH AT 0.5MS^-1. IT TAKES JOHN 252S TO CROSS THE RIVER. 1. DRAW A DIAGRAM TO GRAPHICALLY REPRESENT THE VELOCTY VECTORS OF THE WATER CANOE AND THEIR ...

*Sunday, August 28, 2016 by SARAH*

**physics**

A 5-kg block lies on a smooth table top. A horizontal string connected to the block is passed over a small pulley at the edge of the table, and a body of mass 8 kg is hung from the other end of the string. Find the tension in the string and the acceleration of the bodies when ...

*Sunday, August 28, 2016 by Rhian*

**physics**

A bus is moving at a speed of 20m/s beyond to slow at a constant rate of 3m/s each second find how far it goes before stopping

*Sunday, August 28, 2016 by charan*

**physics**

Rocket-powered sleds are been used to test the responses of humans to acceleration. Starting from rest, one sled can reach a speed of 495 m/s in 1.78 s and can be brought to a stop again in 2.16 s. Find the acceleration of the sled while ac- celerating. Answer in units of m/s2...

*Saturday, August 27, 2016 by kailee*

**physics**

a 50 kg crate is at rest on a level surface the coefficients of friction are 0.3 and 0.4,what is the normal force acting on the crate, a man begins pushing horizontally on the crate how much force must the man exert to start the crate moving, how much force must the man exert ...

*Saturday, August 27, 2016 by bryan*

**physics**

a slingshot launches a rock straight upward at 25 m/s, how high does the rock go, how long is it in the air, what is the velocity and the acceleration of the rock at its highest point

*Saturday, August 27, 2016 by scott*

**physics**

a greyhound is capable of running at 40 mph, how many meters could the greyhound run in 3 minutes at this speed, how many seconds would it take the greyhound to run 1 km at this speed

*Saturday, August 27, 2016 by scott*

**Physics. Pleaseee helpppp**

Four electrons are located at the corners of a square 10.0nm on a side, with an alpha particle at its midpoint. How much work is needed to move the alpha particle to the midpoint of one of the sides of the square?

*Saturday, August 27, 2016 by Nanny*

**Physics**

A piece of wood of mass 60kg and density 600kg/m3 flows in water of density of 1000kg/m3.calculate (a) volume of water that the wood displaced (b) the fraction of volume of mass and water

*Saturday, August 27, 2016 by Pauliho*

**physics **

what change in velocity would be produced on a body of mass 4kg, if a contact force of 16N act on it for 2sec.

*Saturday, August 27, 2016 by sanusi *

**Physics **

A pebble is dropped from rest from the top of a tall cliff and falls 4.9meters after 1 second has elapsed. How much further does it drop in the next 2 seconds?

*Friday, August 26, 2016 by Hiba*

**Physics**

A heavy rainstorm dumps 1.0 cm of rain on a city 8 km wide and 9 km long in a 2 hour period. How many metric tons (1 metric ton = 10^3 kg) of water fell on the city? (1 cm^3 of water has a mass of 1g = 10^-3 kg) What I have thus far: 72 km^2 x (1E^10 cm^2/1km^2) x (10^-3 kg/ ...

*Friday, August 26, 2016 by Anonymous*

**Physics**

How many metric tons (1 metric ton = 10^3 kg) of H2O fell on a city? (1cm^3 of H2O has a mass of 1g = 10^-3 kg) Thus far I have: 10^-3 Kg x (1 metric ton/10^3) but I don't understand the significance of adding 1 cm^3 to the problem.

*Friday, August 26, 2016 by Kaitlin*

**12th grade physics**

A boat pulled through a canal by horses walking parallel to the canal and exerting a force of 1000 N on a tow Rope 40 meters long. Is the distance from the boat to the horse track is 15 meters, what is the magnitude of the effective component pulling the boat forward

*Friday, August 26, 2016 by Daryione*

**physics**

round of the following digits- 3.65*105(upto are place of decimal) 0.882026(upto three significant figures) 311.299(upto four significant figures) 4.783(upto two significant figures)

*Friday, August 26, 2016 by yashaswi*

**Physics**

A water tank has a mass of 3.65 kg when empty and has a mass of 52.5 kg when filled to a certain level. What is the mass of water in the tank?

*Friday, August 26, 2016 by Faith *

**physics**

a ball is vertically upward with a velocity of 35m/s. how long will the ball reaches the ground?

*Friday, August 26, 2016 by jerson*

**Physics**

In a novel from 1866 the author describes a spaceship that is blasted out of a cannon with a speed of about 11.000 m/s. The spaceship is approximately 274 m long but part of it is packed with gunpowder, so it accelerates over a distance of only 213 m. What was the acceleration...

*Friday, August 26, 2016 by Geoff*

**Physics**

A racquet ball is struck in such a way that it leaves the racquet with a speed of 4.8 m/s in the horizontal direction. When the ball hits the court, it is a horizontal distance of 1.94 m from the racquet. Find the height of the racquet ball when it left the racquet. I need ...

*Friday, August 26, 2016 by Geoff*

**Physics I - Modern**

An electron with a speed of 0.988c is emitted by a supernova, where c is the speed of light. What is the magnitude of the momentum of this electron? Thanks for any help you can offer! I've tried so many things!

*Thursday, August 25, 2016 by Victoria*

**physics**

a greyhound is capable of running at 40 mph how many meters could the greyhound run in 3 minutes at this speed, how many seconds how many seconds would it take the greyhound to run 1 km at this speed

*Thursday, August 25, 2016 by bryan *

**physics**

A rock is thrown straight up with an initial velocity of 15m/s. ignore the effect of air resistance , how high will the rock rise ?

*Thursday, August 25, 2016 by Mahmoud*

**Physics**

Space explorers discover an 8.7×10^17kg asteroid that happens to have a positive charge of 4400 C. They would like to place their 3.3×10^5kg spaceship in orbit around the asteroid. Interestingly, the solar wind has given their spaceship a charge of -1.2C. What ...

*Thursday, August 25, 2016 by Brittany*

**physics**

A ball is thrown upward into the air with a speed of 15m/s. At what times does the ball pass a point 8 meters above the person's hand? 8m=-0.5(9.8)(t) t=1.8 seconds Is that correct?

*Thursday, August 25, 2016 by Chelsea Woodard*

**Physics **

An electric motor runs at a constant rotational frequency of 3000 r/min and has the load of 75 Nm and a 5,0 Nm extra load of friction and gear. The efficiency of the motor is 78%. a) What is the input power of the motor? b) What is the work done by the motor in 24 hours and c...

*Thursday, August 25, 2016 by Anonymous*

**physics**

A 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.

*Thursday, August 25, 2016 by bharat*

**Physics**

Power of a car weighing 1200kg is 134.05hp and its efficiency is 90%. How long will it take to raise of the car to 20m/s from rest. solution:v2=u2+2as 400=2as as=200 real power=13.05hp =100001.3W effective power=90001.17W Power=W/t =mas/t =1200*200/t t=90001.17/240000 =2.67s ...

*Thursday, August 25, 2016 by RBAS*

**physics**

A plane flies from base camp to Lake A, 260 km away in the direction 20.0° north of east. After dropping off supplies it flies to Lake B, which is 150 km at 30.0° west of north from Lake A. Graphically determine the distance and direction from Lake B to the base camp. ...

*Wednesday, August 24, 2016 by john*

**physics vectors**

While exploring a cave, a spelunker starts at the entrance and moves the following distances. She goes 75.0 m north, 250 m east, 109 m at an angle θ = 30.0° north of east, and 156 m south. Find the resultant displacement from the cave entrance. The figure below ...

*Wednesday, August 24, 2016 by john*

**physics vectors**

A plane flies from base camp to Lake A, 260 km away in the direction 20.0° north of east. After dropping off supplies it flies to Lake B, which is 150 km at 30.0° west of north from Lake A. Graphically determine the distance and direction from Lake B to the base camp. ...

*Wednesday, August 24, 2016 by john*

**PHYSICS**

A bucket containing cement has a mass of 3kg. One end of a rope is attached to the handle of the bucket and the other end is wound around a horizontally mounted cylinder on frictionless bearings. The mass of cylinder is 6kg and its radius is 0.10m. The moment of inertia of the...

*Wednesday, August 24, 2016 by Sarah*

**physics vectors**

In the figure below, a spider is resting after starting to spin its web. The gravitational force on the spider is 0.158 N on the junction of the three strands of silk. The junction is supported by different tension forces in the two strands above it so that the resultant force...

*Wednesday, August 24, 2016 by john*

**PHYSICS**

A BALL MOVES ROUND A CIRCLE WITH RADIUS OF 20CM CALCULATE THE DISTANCE

*Wednesday, August 24, 2016 by ORJINTA*

**physics vectors**

If vector A = (6.00 i -8.00 j) units, vector B = (-8.00 i + 3.00 j) units, and vector C = (25.0 i + 22.0 j) units, determine a and b such that (a vector A + b vector B + vector C= 0.) a=? b=?

*Wednesday, August 24, 2016 by john*

**Physics**

Starting from rest, a 2500 kg helicopter accelerates straight up at a constant 1.7 m/s2. What is the helicopter's height at the moment its blades are providing an upward force of 29 kN? The helicopter can be modeled as a 2.6-m-diameter sphere. How do you start this ...

*Wednesday, August 24, 2016 by Brittany*

**Physics**

please help me 1)In the movie The avengers, Captain America sees an alien speeder incoming. The speeder passes directly overhead at 3.65m. If he throws his shield straight up with a speed of 7.40 m/s from a height of 1.55 m above the ground (a) will the shied reach the speeder...

*Wednesday, August 24, 2016 by Kevin*

**physics**

A 500 car travelling at 45 km/hr towards west collides w/a 20000 kg truck travelling at 30 km/hr, 30 degrees south of west. if the two vehicle remain tangled together after collision, in what speed and in direction will they move?

*Wednesday, August 24, 2016 by Iker*

**physics**

A block of wood is 8.00cm long, 20.0cm high, and 0.10m wide. its mass is 1.00kg. what is its density in g/cm3?

*Wednesday, August 24, 2016 by Anonymous*

**physics**

A vertical container with base area measuring 12.3 cm by 13.7 cm is being filled with identical pieces of candy, each with a volume of 50.0 mm^3 and a mass of 0.0200 g. Assume that the volume of the empty spaces between the candies is negligible. If the height of the candies ...

*Wednesday, August 24, 2016 by jacob*

**Physics**

When observing a stem of coconut trees during sunshine,how the light cannot pass through the leaves of the coconut tree even though it is thin and it form shadow, whereas the stem allows the light to pass through them but their stem is thick and how possible this could be??

*Wednesday, August 24, 2016 by Emitai Maiwelagi*

**Physics**

Totally confused on this question, Please help. 1)In the movie The avengers, Captain America sees an alien speeder incoming. The speeder passes directly overhead at 3.65m. If he throws his shield straight up with a speed of 7.40 m/s from a height of 1.55 m above the ground (a...

*Wednesday, August 24, 2016 by Kevin*

**physics vectors**

A snow-covered ski slope makes an angle of θslope = 34.0° with the horizontal. When a ski jumper plummets onto the hill, a parcel of splashed snow is thrown up to a maximum displacement of 1.10 m at θsnow = 24.0° from the vertical in the uphill direction as ...

*Tuesday, August 23, 2016 by john*

**physics vectors**

Consider the two vectors A with arrow = 3 i − j and B with arrow = − i − 6 j. Calculate the directions of A with arrow + B with arrow and A with arrow − B with arrow. A with arrow + B with arrow ° (counterclockwise from the +x axis) A with arrow &#...

*Tuesday, August 23, 2016 by john*

**physics**

A plane flies from base camp to Lake A, 260 km away in the direction 20.0° north of east. After dropping off supplies it flies to Lake B, which is 150 km at 30.0° west of north from Lake A. Graphically determine the distance and direction from Lake B to the base camp. ...

*Tuesday, August 23, 2016 by john*

**physics**

Two trains 200m and 300m are running towards each other at 50km/hr and 40km/hr respectively and the distance between the two trains is 12km. In how many minutes will the two trains cross each other.?

*Tuesday, August 23, 2016 by Abul Qasim*

**Physics**

A ball thrown vertically upwards is caught by the thrower 8 seconds afterwards . (take g =10) When the ball is caught by the thrower: what is its displacement from the initial position? b) what is the initial velocity? c) To what height does the ball rise? d) With regard to (c...

*Tuesday, August 23, 2016 by Wawen*

**physics**

There are 6 resistor of resistance 1ohm

*Tuesday, August 23, 2016 by pratyush*

**Physics**

Find another velocity when horizontal range is equal and one velocity is 500m/s and angle is 30degrees

*Tuesday, August 23, 2016 by Brijtosh*

**physics**

the upthrust on a boat is 1000 N what is the weight of the boat

*Tuesday, August 23, 2016 by meenakshi*

**physics**

If your weight is 300 N what is the upthrust on you when you are floating in water

*Tuesday, August 23, 2016 by meenakshi*

**physics**

if the weight of the stone was 2 N and the upthrust was 1 N what weight would the force meter show?

*Tuesday, August 23, 2016 by meenakshi*

**Urgent help! Physics**

A ball is kicked into the air with a speed of 10m per second at angle of 60 degrees to the horizontal (take g=10). a) Calculate the horizontal and vertical speed of the ball b) Calculate the ball's time of flight c) Calculate the distance from the kicked point that the ...

*Tuesday, August 23, 2016 by Papsi*

**physics**

A uniform wooden plank 68cm long and weighing 38N rest horizontaly on two knife edges each 10cm from the ends of the plank. (1) What is the greatest land which applied at one end of the plank will not cause it to over turn. (2) what are the reactions of the support cohese a ...

*Tuesday, August 23, 2016 by Asare Joseph*

**physics**

A 1-kg mass hangs by a string from a disk with radius 4.6 cm which has a rotational inertia of 5 × 10-5 kg·m2. After it falls a distance of 0.8 meters, how fast is it going to the nearest hundredth of a m/s?

*Monday, August 22, 2016 by laaamaama*

**Physics**

wave traveling on a rope is given by y=0.25 sin(0.3 radX-40radt), where y and X is expressed in meter and t is in seconds. Determine a-Amplitude. B-frequency C-Direction of motion. e-Displacement at X=0.6 m and t=2.3 s.

*Monday, August 22, 2016 by Shehab*

**physics**

A 126 kg student sits on a chair which is solely supported by a solid 0.4 meter-long steel rod 0.81 cm in diameter. To the nearest micron (millionth of a meter), what is the change in length of the rod produced by the student's weight?

*Monday, August 22, 2016 by clache*

**physics**

In the figure below, the bar is 2.4 meters long and has a mass of 145 kg. To the nearest newton what is the tension in the wire?

*Monday, August 22, 2016 by clache*

**physics**

should the bulb of thermometer be completely immersed in boiling water to measure its boiling point

*Monday, August 22, 2016 by remya*

**physics**

A train starts from rest from a station with acceleration 0.2m/s2 on a straight track and then comes to rest after attaining maximum speed on another station due to retardation 0.4m/s2 .If total time spend is half an hour, then distance between two stations is_ ?

*Monday, August 22, 2016 by binalika *

**physics**

Why we feel pain don't having sweater and not feel pain having sweater by beating with a stick ?

*Monday, August 22, 2016 by wajdan*

**physics**

how scientists inventions are effecting the environment?

*Monday, August 22, 2016 by esha*

**Physics**

A flowerpot falls from a windowsill 25.0 m above the sidewalk. A. How fast is the flowerpot moving when it strikes the ground?? B. How much time does a cat on the sidewalk below have to move out of the way before the flowerpot hits the ground? (Please answer with step by step ...

*Sunday, August 21, 2016 by Maggie*

**Physics**

An arrow is shot straight up from the edge of a cliff with an initial velocity of 50 ft/s. Answer the following questions using English units. The acceleration due to gravity has a magnitude of 32.2 ft/s. A. Find the time to reach the highest point. (please use step by step ...

*Sunday, August 21, 2016 by Maggie*

**Physics **

A robot probe drops a camera off of the rim of a 239 m high cliff on Mars, where the free-fall acceleration is -3.7 m/s^2. A. Find the time required for the camera to reach the ground. B. Find the velocity with which it hits the ground.( shown work will be appreciated)

*Sunday, August 21, 2016 by Maggie*

**Physics**

An arrow is shot straight up from the edge of a cliff with an initial velocity of 50 ft/s. Answer the following questions using English units. The acceleration due to gravity has a magnitude of 32.2 ft/s. A. Find the time to reach the highest point. B. Find the displacement at...

*Sunday, August 21, 2016 by Maggie*

**physics**

you walk 95.0 m at a speed of 1.26 m/s and then run 95.0 m at a speed of 3.61 m/s. what is the average velocity?

*Sunday, August 21, 2016 by karen*

**physics .Henry,Damon,Steve,Saed,bobpursley, And This is my question every one**

A ball is thrown straight up by a passenger in a train that is moving what a constant velocity. Where would the ball land —back in his hands, in front of him, or behind him? Does your answer change if the train is accelerating in the forward direction? if yes, how?

*Sunday, August 21, 2016 by himel*