# soccer ball is kicked with the initial speed of 16m/s

38,430 results, page 93

### PHYSÝCS

At the end of the spring term, a high school physics class celebrates by shooting a bundle of exam papers into the town landfill with a homemade catapult. They aim for a point that is 31.1 m away and at the same height from which the catapult releases the bundle. The initial ...

### Physical Science

You submerge 100 grams of steel in 200 grams of water. If the steel has an initial temperature of 80°C and the water has an initial temperature of 10°C, what is the final temperature of the system? The specific heat capacity of the steel is 0.15 cal/g•°C

### Physics

I know how to get the speed if it accelerated the whole time. How do I calculate the cruising speed? Starting from rest, a car travels 1,350 meters in 1 min. It accelerated at 1 m/s^2 until it reached its cruising speed. Then it drove the remaining distance at constant ...

### physics

Two motorcycles are traveling in opposite directions at the same speed when one of the cyclists blasts his horn, which has frequency of 544 Hz. The other cyclist hears the frequency as 522 Hz. If the speed of sound in air is 344 m/s, what is the speed of the motorcycles

### Physics

A volleyball court is 18 m long from baseline to baseline and the net is 2.24 m high. A volleyball player serves the ball from the baseline by hitting it at a height of 2 m above the floor at an angle of 10 degrees above the horizontal. A.) If the ball is in the air for 1.05 s...

### physics

The chimney of a stationary toy train consists of a vertical spring gun that shoots steel balls a meter or so straight into the air – so straight that the ball always falls back into the chimney. If the train is moving, under which condition will the ball fall back into the ...

### physics

The chimney of a stationary toy train consists of a vertical spring gun that shoots steel balls a meter or so straight into the air – so straight that the ball always falls back into the chimney. If the train is moving, under which condition will the ball fall back into the ...

### Math

(With a TI-89 calculator) Graph x(t) = 3t^2 and y(t)=2-2t on [0,1]. Write a Cartesian equation that models this graph. Identify the initial and terminal points. I graphed both equations, but I didn't really get what [0,1] meant. I think it's an interval. Also, with the ...

### Physics

A 3.90×10^2kg cube of ice at an initial temperature of -18.0degreesC is placed in 0.480kg of water at 41.0degreesC in an insulated container of negligible mass. Calculate the change in entropy of the system. I found the equilibrium temperature to be at 304.9K, then used ...

### probability

One container contains 6 red and 4 white balls, while a second container contains 7 red and 3 white balls. A ball is chosen at random from the first container and placed in the second. Then a ball is chosen at random from the second container and placed in first. What is the ...

### Physics

Problem:: A 4.80 kg block located on a horizontal frictionless floor is pulled by a cord that exerts a force F=13.5 N at an angle q= 17.5° above the horizontal. What is the speed of the block 3.90 seconds after it starts moving? What I've got:: Using sin and cos, I've got ...

### Physics

A rescue plane is flying horizontally at a height of 132 m above the ground. The pilot spots a survivor and releases an emergency kit with a parachute. The kit descends at a constant vertical acceleration of and the initial plane horizontal speed is . Assuming air resistance ...

### physics

The cable of a 1800-kg elevator has broken, and the elevator is moving downward at a steady speed of 1.6 m/s. A safety braking system that works on friction prevents the downward speed from increasing. a. speed of boat when leaves ramp (assume that engine turned off once boat ...

### math

An object that is falling or vertically projected into the air has it height, in feet, above the ground given by the formula below, where s is the height in feet, Vo is the original velocity of the object, in feet per second, t is the time the object is in motion in seconds, ...

### Physics

A box is sliding up an incline that makes an angle of 15.0 degrees with respect to the horizontal. The coefficient of kinetic friction between the box and the surface of the incline is 0.180. The initial speed of the box and the surface of the incline is 1.50 m/s. How far does...

### algebra II

An aircraft flew 6 hours with the wind. The return trip took 7 hours against the wind. If the speed of the plane in still air is 276 miles per hour more than the speed of the wind, find the wind speed and the speed of the plane in still air. The wind soeed was ______ mph.

### Physics

I need help with these two uestions, thanks 1)The man lifts a box that weght 185N. The box is lifted 0.80m. How much work does the man do on the box? 2) 0.180kg ball falls 2.5m How much work does the force of gravity do on the ball? a)44J b) .45J c) 1.76J d)4.4J e) None of ...

### Physics

I need help with these three questions, thanks 1)The man lifts a box that weght 185N. The box is lifted 0.80m. How much work does the man do on the box? 2) 0.180kg ball falls 2.5m How much work does the force of gravity do on the ball? a)44J b) .45J c) 1.76J d)4.4J e) None of ...

### Physics

I need help with these three questions, thanks 1)The man lifts a box that weght 185N. The box is lifted 0.80m. How much work does the man do on the box? 2) 0.180kg ball falls 2.5m How much work does the force of gravity do on the ball? a)44J b) .45J c) 1.76J d)4.4J e) None of ...

### physics-mechanics-collisions,momentum, impulse

You are at the controls of a particle accelerator, sending a beam of 2.40×107 protons (mass ) at a gas target of an unknown element. Your detector tells you that some protons bounce straight back after a collision with one of the nuclei of the unknown element. All such ...

### repost math question

An aircraft flew 6 hours with the wind. The return trip took 7 hours against the wind. If the speed of the plane in still air is 276 miles per hour more than the speed of the wind, find the wind speed and the speed of the plane in still air. The wind soeed was ______ mph.

### math

by how many order of magnitute is the speed of light greater than the average speed of grey sound? Rose Diamond when he set the hight gate track 710 m record of for this 47.43 sec in April 2003 710m/47.43s = close to 15 m/s. The speed of light is 3 x 10^8 m/s or 30 x 10^7 m/s...

### algebra

Coach Willful believes that the best sixth-grade soccer players are 58 inches tall, and he will accept his ideal as players on his team. why does the equation:|58-h|<4 express the height,h, of coach Willful's team players?

### Physical Education

What does 'fullback' mean in soccer/or football? Are a sweeper and a stopper 'fullbacks'? What about a left back and a right back in the 4-4-2 formation? Aren't they fullbacks? Are there only two fullback or four fullbacks in the 4-4-2 formation?

### Physics

A boat’s speed in still water is 1.95m/s . The boat is to travel directly across a river whose current has speed 1.20m/s . Determine the speed of the boat with respect to the shore. Despite, I did it like taking the sqrt (1.95^2+1.20^2) is there something wrong I did? ...

### Chemistry

using the gas laws, What is V in the table below? initial: 1420 torr 75 mL 200 K Final: 760 torr V 360 K What is T using the gas laws? Initial: 91.8 mL 365 K Final: 45.8 mL T

### physics

A model rocket is launched straight upward with an initial speed of 60.0 m/s. It accelerates with a constant upward acceleration of 2.00 m/s2 until its engines stop at an altitude of 130 m. (a) What is the maximum height reached by the rocket? Your response differs from the ...

### Math

A soccer team won three fourths of its games. The team won 18 games. How many games did the team play?

### Physics

I don't know how to go about this question. We only have an initial velocity and no final velocity, distance or time. A proton is fired from far away toward the nucleus of a mercury atom. Mercury is element number 80, and the diameter of the nucleus is 14.0 fm. The proton is ...

### science

The true speed of a moving car on the Earth, if you want to be very precise, would be the speed of the car with respect to the ground Is this true? yeah it is true yeah it is true The true speed of a moving car on the Earth, if you want to be very precise, would be the speed ...

### Physics

Compute the initial upward acceleration of a rocket of mass 1.5 ✕ 104 kg if the initial upward force produced by its engine (the thrust) is 2.7 ✕ 105 N. Do not neglect the weight of the rocket. Pleas tell me the steps, I've tried getting the acceleration and ...

### Physics

I've been stuck on this problem and hope someone can help me. A man is standing on scales which show his weight as 607.6 N. A .50 kg ball is dropped from a height of 1 m into his hands. His hands drop 25 cm from chest level to waist level during the catch.His mass is 62 kg. If...

### physics

A ball is fired with an inital velocity of 500 m/s at an angle of 30 degrees above horizontal across a level field. Calculate the maximum height, the time of flight, and the range of the ball. Okay, so I know that this is a projectile problem but I am kind of having trouble ...

### Linear quadratics and inequalities

parabolic path that can be reprsented by the function y=-0.1x^2 +2.9x, where x represents the horizontal distance and y represents the vertical distance of the football. As the ball is rising, a Louisanna lineman jumps in a linear path that can be represented by the equation y...

### Trigonometry

A race car is driven around a circular track at a constant speed of 180mph. If the diameter is 1/2 mile, what is the angular speed of the car? Express your answer in revolutions per hour. The formula for angular speed is w=theta (in radians)/time

### Trigonometry

A race car is driven around a circular track at a constant speed of 180mph. If the diameter is 1/2 mile, what is the angular speed of the car? Express your answer in revolutions per hour. The formula for angular speed is w=theta (in radians)/time

### Geometry

The piolet of a single-engine airplane flies at a constant speed of 200 km/h at a bearing of N 25 degree E. There is a 40 km/h crosswind blowing southeast (S 45 degress E). What are the plane's actual speed and direction? Round the speed to the nearest tenth and the directiuon...

### physics

an airplane has a speed of 600km/h with respect to air. it has to fly a distance of 800km northward. in what direction should it fly if a steady wind is blowing at a speed of 120km/h from the west ? what will its speed with respect to the ground be? draw the relevant diagram ...

### chemistry

Record measured absorbance for each tube in following table. Complete the table by calculating the [ Fe(SCN2+)]eq and [Fe3+]initial and [HSCN]initial Data: Volume of 2.00 x 10-3 M Fe(NO3)3 solution, mL 1)5.00, 2) 5.00, 3) 5.00 4) 5.00 5) 5.00 Volume of 2.00 x 10-3 M HSCN ...

### chemistry

Record measured absorbance for each tube in following table. Complete the table by calculating the [ Fe(SCN2+)]eq and [Fe3+]initial and [HSCN]initial Data: Volume of 2.00 x 10-3 M Fe(NO3)3 solution, mL 1)5.00, 2) 5.00, 3) 5.00 4) 5.00 5) 5.00 Volume of 2.00 x 10-3 M HSCN ...

### Physics

An object is thrown from the top edge of a building at a speed of 21.21 m/s at an angle of 45degrees above the horizontal. Some time later it passes point A which is 20m below the level of the top of the building, and continues to strike ground at point B. It reaches B moving ...

### Physics Urgent please help

A figure skater stands on one spot on the ice(assumed frictionless) and spins around with her arms extended. When she pulls in her arms, her moment of inertia decreases to 3/4 of the initial value. Assume that her spin angular momentum is conserved. What is the ratio of her ...

### physics

two balls are dropped to the ground from different heights. one ball is dropped 2s after the other but they both strike the ground at the same time, 5s after the first is dropped. what is the difference in height from which they are dropped? from what height was the first ball...

### physics

A)A model rocket is launched straight upward with an initial speed of 47.7 m/s. It accelerates with a constant upward acceleration of 2.02 m/s2 until its engines stop at an altitude of 157 m. What is the maximum height reached by the rocket? B)How long after lift off does the ...

### physics

A motorboat travels due north at a steady speed of 3.0 m/s through calm water in which there is no current. The boat then enters an area of water in which a steady current flows at 2.0 m/s in a southwest direction, as shown in the next picture. Both the engine power and the ...

### statistics

Suppose that neighborhood soccer players are selling raffle tickets for $500 worth of groceries at a local store, and you bought a $1 ticket for yourself and one for your mother. The children eventually sold 1,000 tickets. (a) What is the probability that you will win? (b) ...

### Physics

A small, nonconducting ball of mass m=1.0mg and charge q=2.0*10^-8 C (distributed uniformly through it's volume) hangs from an insulated thread that makes an angle theta = 30 degrees with the vertical, uniformly charged nonconducting sheet. considering the gravitational force ...

### physics

i need help understanding physics. im failing my class and don't want to do anything because i have zero clue where to start. im stuck on this problem currently. a cat pushes a ball from a 7.00 m high window, giving it a horizontal velocity of .20 m/s. how far from the base of...

### MAth grade 8

mr kumar lives in the eastern part of spore . he visits his aged parents , who lives 36 km away , every weekend he finds that is he increases the average speed of his vehicle by 12km/h, he could save 9 minutes of his travelling time. find the speed at which he travels before ...

### Math

A sample of 500 drivers was asked whether or not they speed while driving. The following tables gives a two-way classification: Speed Never speed Male 222 78 Female 128 72 We wish to test whether gender and speeding are related at the 1% significance level.

### Math

A sample of 500 drivers was asked whether or not they speed while driving. The following tables gives a two-way classification: Speed Never speed Male 222 78 Female 128 72 We wish to test whether gender and speeding are related at the 1% significance level.

### Differential Equations (Another) Cont.

For the following initial value problem: dy/dt=1/((y+1)(t-2)) a)Find a formula for the solution. b) State the domain of definition of the solution. c) Describe what happens to the solution as it approaches the limit of its domain of definition. Why can't the solution be ...

### CHEM

Calculate the equilibrium constant for the weak base CH3NH2, if a solution of the base with an initial concentration of 7.05×10-4 M has a [CH3NH3+] of 0.000379 M (make an exact calculation assuming that initial concentration is not equal to the equilibrium concentration). ...

### MATH - immediate help needed!

Please provide the solution to the below problems: In a certain state lottery, a player selects four different numbers from 1 through 30. Find the probability that a single choice of four numbers wins the lottery, assuming the order of the numbers is not important...

### Physics

1. What happens to the force required for an object to maintain circular motion if the period is halved (goes around twice as fast around the circle)? a) force doubles b) force quadruples c) force is halved d) force is quartered my answer: c 2. Which is true a) the ...

### business law

Copenhaver put pay washers and dryers in an apartment complex owned by Berryman. With four years to run on the contract, Berryman kicked Copenhaver out. Within 6 months, Copenhaver had put all equipment back into service in other locations. Copenhaver sued for compensatory ...

### physics

Olympic champion Justin gaitlin set a new world record for 100.0 m sprint at the last lympics by clocking 9.86 s for the race.Calculate a)His average speed for the race b)Assuming that he accelerated uniformly for the first 4.86 s after taking off the blocks to reach a maximum...

### physics

Olympic champion Justin gaitlin set a new world record for 100.0 m sprint at the last lympics by clocking 9.86 s for the race.Calculate a)His average speed for the race b)Assuming that he accelerated uniformly for the first 4.86 s after taking off the blocks to reach a maximum...

### physics

a car is travelling along a cruve having radius of curvature of 80.0 m, banked at an angle of theta=30. The coeff of static friction of ice is 0.05. What is: a) the slowest speed the car can negotiate the banked curve with? b) what is the fastest speed? first of all, im having...

### physics

A 30g bullet with a speed of 400m=s strikes a glancing blow to a target brick of mass 1:0kg. The Brick breaks into two fragments. The bullet deflects at a angle of 30 above the +x-axis and has a reduced speed of 100m=s. One piece of the brick with mass (0.75kg) goes off to ...

### physics

A 30g bullet with a speed of 400m=s strikes a glancing blow to a target brick of mass 1:0kg. The Brick breaks into two fragments. The bullet deflects at a angle of 30 above the +x-axis and has a reduced speed of 100m=s. One piece of the brick with mass (0.75kg) goes off to ...

### physics

a car crosses the street ABC. the segment AB = average speed of 60km / h for 2 hours, the length BC = average speed of 90km / h for 1 h. the average speed of car travel in AC is? the route is a straight line

### physical science

A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope, its speed is 4.25 m/s. But 3.2 s later, at the bottom of the slope it's speed is 22.75 m/s what is its average acceleration

### physics

A 2 kg block with initial velocity +2m/s collides with a stationary 6 kg block with initial velocity 0m/s on a frictionless surface. After the collision, the 2 kg block is moving at –1 m/s and the 6kg block is moving to the right at +1 m/s. Show that the total momentum is ...

### College Physics

A 1.75-kg wooden block rests on a table over a large hole as in the figure below. A 4.60-g bullet with an initial velocity vi is fired upward into the bottom of the block and remains in the block after the collision. The block and bullet rise to a maximum height of 24.0 cm. ...

### Physics 4a

A stone is thrown vertically upward. On its way up it passes point A with speed v, and point B, 7.85 m higher than A, with speed v. Calculate (a) the speed v and (b) the maximum height reached by the stone above point B.

### physics

A stone is thrown vertically upward. On its way up it passes point A with speed v, and point B, 7.85 m higher than A, with speed v/2. Calculate (a) the speed v and (b) the maximum height reached by the stone above point B.

### Geometry/trig

A plane is flying due south at a speed of 300 mph. The wind is blowing from the west at a speed of 40 mph. Find the resultant speed of the plane and the direction of the plane

### Physics

A skateboarder of mass 38.0 kg is riding her 3.90-kg skateboard at a speed of 5.40 m/s. She jumps backward off her skateboard, sending the skateboard forward at a speed of 8.5 m/s. At what speed is the skateboarder moving when her feet hit the ground?

### health

i need to find a male that lived in the 1900's, whose mother was married three times. The mother beat her second husband and the third spouse died of a heart attack. he was raised without love and was ugly and poor, but he had a I.Q. and dropped out of high school in his third...

### Chemistry

What would be the concentration of dinitrogen pentoxide after 6.00 X 10(2) seconds and how long would it take for the concentration of N2O2 to decrease to 10.0% of its initial value in the following equation... N2O5 to NO2 and O2 initial concentration is 1.65 X 10-2mol/L rate ...

### phys

The space shuttle, with an initial mass M = 2.41E+6 kg, is launched from the surface of the earth with an initial net acceleration a = 26.1 m/s2. The rate of fuel consumption is R = 6.90E+3 kg/s. The shuttle reaches outer space with a velocity of vo = 4632 m/s, and a mass of ...

### Physics help please!

The pressure of a fixed quantity of an ideal gas was held constant. The initial volume was 8.00 cubic meters and the final volume was 2.50 cubic meters. What was the final temperature in kelvins if the initial temerature was 188 degrees fahrenheit... Please walk me through ...

### college algebra

The height of a projectile fired upward is given by the formula s = v0t – 16t2, where s is the height, v0 is the initial velocity and t is the time. Find the times at which a projectile with an initial velocity of 128 ft/s will be 144 ft above the ground. Round to the ...

### english

Before planting a tree, a gardener needs to choose a good location, and dig a deep enough hole. The location should have the right kind of soil sufficient drainage, and enough light for the tree chosen. The hole should be slightly deeper than the root ball and about twice as ...

### Exponential Growth and Decay

Can somebody please check my answers? 1. Identify the initial amount a and the growth factor b in the exponential function. g(x)=14*2^x a)a=14, b=x b)a=14, b=2 <<<< c)a=28, b=1 d)a=28, b=x 2. Identify the initial amount a and the growth factor b in the exponential ...

### Physics

A small steel ball bearing with a mass of 24 g is on a short compressed spring. When aimed vertically and suddenly released, the spring sends the bearing to a height of 1.23 m. Calculate the horizontal distance the ball will travel if the same spring is aimed 27° from the ...

### probability

There are two identical boxes of balls. In the first box 2 blue and 5 orange balls, and the second 3 blue and 6 orange balls. Chosen at random from the box and pull out a 1 ball. What is the probability that the ball taken is orange

### Math120

A golf ball is selected at random from a golfn bag. If the golf bag contains 5 red balls, 6 orange balls and 9 black balls, find the probability of the following event. The golf ball is red or orange.

### equilibrium III

what's Kp if Cl2CO was found to be 7.46% decomposed at 395'C when initial pressure is 7.60atm. Cl2CO --> <-- CO + Cl2 Initial p = 7.60 atm. 7.46% decomposed. (CO) = 7.60*0.0746 = ?? (Cl2) = same ((Cl2CO) = 7.60*(0.9254) = ?? Kp = pCO*pCl2/pCl2CO Post your work if you get...

### chemistry

Calculate the equilibrium constant for the weak base C5H5N, if a solution of the base with an initial concentration of 5.74×10-3 M has a [C5H5NH+] of 0.00000283 M (make an approximate calculation assuming that initial concentration is equal to the equilibrium concentration). ...

### unified science

1) a bus drove 65 km/h. how far did it travel in 3 hours? 2) a bird fly at 8 m/s. how far can it travel in 10 seconds? 3) a snail can creep along at 5 cm/min. how can it travel in an hour? 4)an narrow flying at 94 m/s struck the target in 1.8 s. how far away was the target? 5...

### Ms Sue and or Ms Wright

He hit the ball well, but he ran toward third base." Could the sentence read He hit the ball well and ran toward third base." Why yes or no Thank you so much.

### physics

A hydrogen nucleus has a radius of 1 x 10-15 m and the electron is about 5.3 x 10-11 m from the nucleus. Assume the hydrogen atom is a ball with a radius of about 5.3 x 10-11 m and the nucleus is a ball with a radius of 1 x 10-15 m. How much work (in electron volts) must be ...

### English

1. I have been late for school more than ten times when I was a middle school student. 2. I have not broken windows before. 3. I have never used a cell phone in class. 4. I have played ball in my classroom before. 5. I have ever played ball in my classroom. (Are they all ...

### Rational Functions Word Problem

A car travels at a constant speed and burns g(x) litres of gas per kilometer, where x is the speed of the car in kilometers per hour and g(x) = 1280 + x^2/320x a) If gas costs $1.29 per litre, find the cost function C(x) that expresses the cost of the fuel for a 200 km trip as...

### Physics -- Help!!

If you launch a ball precisely 8' vertically how long does it take to go from the ground to 8' and back to the ground? If you then launch the same ball precisely 10' vertically, how much longer will it take to return to the ground?

### Physics

If a ball is dropped from a height of 100.0 m, what is it's height above the ground (in meters) after 3.0 s? If a ball is dropped from a height of 100.0 m, what is it's velocity (in m/s) after 3.00 s? You may treat downward velocity as positive.

### physics

A certain spaceship has a speed of 18200 mi/hr. What is its speed in light-years/century? A light-year is the distance that light travels in one year with a speed of 186,000 mi/s.

### physics

A car travels at a constant speed of 30 mph for 20 miles, at a speed of 40 fps for the next 20 miles, and then travels the final 20 miles at 90 kph. what is the average speed of the entire trip?

### Algebra

Airplane A travels 1400 km at a certain speed. Plane B travels 1000 km at a speed 50 km divided by h faster than plane A in 3 hrs less time. Find the speed of each plane.

### Physics

Water flowing through a 2.8 cm-diameter pipe can fill a 200 L bathtub in 5.8 min. Flow rate Q = volume/time = speed * cross section area Q=200/5.8=speed*.028....i get 1231.52 or Q=(200/348)=speed*.028...i get 20.52 both are wrong so what do i do? then i did speed=200/(pi*.25^2...

### math

an express train makes a run of 240 km at a certain speed. another train whose speed is 12km/hr less takes an hour longer to cover the same distance. find the speed of the express train in km/hr.

### physics

a rock is thrown horizontally with a speed of 17 m/s from a vertical cliff of height 34 m. A- I solved for t=2.63 B-How far will it land from the base of the cliff? im using x=xo+vox*t i get -6.46 and it is wrong. What am I doing wrong? C-What is the velocity (magnitude and ...

### physics

A stone is dropped from the roof of a building; 1.60s after that, a second stone is thrown straight down with an initial speed of 26.0m/s , and the two stones land at the same time. part a. How long did it take the first stone to reach the ground? part b.How high is the ...

### Physics

Two balls of the same volume are released inside a tank filled with water as shown in the figure. The densities of balls A and B are 0.86 g/cm3 and 0.55 g/cm3. (The density of water is 1.00 g/cm3. Take the +y direction to be up. Indicate the direction with the sign of your ...

### Physics

A motorboat whose speed in still water is 2.91 m/s must aim upstream at an angle of 30.0 degrees (with respect to a line perpendicular to the shore) in order to travel directly across the stream. - What is the speed of the current? - What is the resultant speed of the boat ...

### physics- still confused.

A positively charged light metal ball is suspended between two oppositely charged metal plates on an insulating thread as shown below. After being charged once, the plates are disconnected from the battery. Describe the behavior of the ball. Thank you so much! Could you please...

### physics

A bullet of mass m = 5.89 g is fired into a block of mass M = 3.09 kg that is initially at rest on the edge of a smooth table. (The table top is 0.83 m above the floor.) The bullet ends up stuck in the block, and together they fly off the table and fall to the floor. If the ...