02/13/17

physics speed of sound question, please help :)
Suppose you are deep sea diving and you start to wonder if the speed of sound in water is different at these depths. You sing a perfect tone of 360 Hz into a tube, and through some measurements... more
Follows • 2
Expert Answers •1

02/08/17

What is the distance traveled by the train in kilometers?
A train starts from rest and accelerates uniformly, until it has traveled 2.1 km and acquired a velocity of 24 m/s. The train then moves at a constant velocity of 24 m/s for 400 s. The train then... more
Follows • 2
Expert Answers •1

02/07/17

Rank The Magnetic Field At Point P
Shown below are several situations with two wires with currents 2 A flowing out of (.) or into (X) the page. Rank the magnetic field at point P from greatest to least. Count a downward pointing... more
Follows • 2
Expert Answers •1

02/04/17

Projectile Question on Range
A projectile is thrown with speed 50√2 m/s at angle of 45° with horizontal. At the highest point it explodes into three fragments of equal mass of which one of the fragment retraces its path,the... more
Follows • 3
Expert Answers •2

01/24/17

Ship A has 10 more rooms than ship B, ship C has 35 fewer rooms than twice the number of ship B. The total between all 3 is 711 rooms. How many do each have
Algebra word problem
Follows • 3
Expert Answers •2

01/24/17

Dan borrows money to buy a new trumpet for $400 at a simple interest rate of 5%.
He writes the equation t=400+(0.5 x 400) to represent the amount of money he will need to pay back after 1 year. Is Dan's equation correct? Explain your answer and determine how much money Dan... more
Follows • 2
Expert Answers •1

01/16/17

help please! physics question pt 2
A physics student on a roller coaster uses an instrument to measure a centripetal acceleration of 2.1 g as she rounds a corner. Recall that 1g = 9.81 m/s2. Another student measures the tangential... more
Follows • 3
Expert Answers •2

11/22/16

Physics Momentum Question
9. A 0.05 kg bullet moving vertically upwards at 125 m/s hits a stationary 2.6 kg block hanging from a 5.00 m long string. The block then soars upward until it reaches a maximum height (you may... more
Follows • 2
Expert Answers •1

11/22/16

Momentum And Collisions 3
A 0.05 kg ball is thrown straight up into the air with an initial speed of 13 m/s. Find the momentum of the ball at the following locations.   (a) at its maximum height kg·m/s   (b) halfway to... more
Follows • 2
Expert Answers •1

09/25/16

What is the car's acceleration while braking?
A car accelerates uniformly from rest at 12.5 m/s^2 for 10 seconds. It then brakes to a rest over a distance of 1000 meters.
Follows • 2
Expert Answers •1

09/13/16

Projectile motion equations
starting with the projectile motion equations , show that the launch speed of the projectile is given by the following equation : vi = sqrt (xf2 *g) /(2yi) The square root is over the entire... more
Follows • 2
Expert Answers •1

11/18/15

What is the average pressure exerted on the ground by both feet? One foot?
If a person who exerts 700 N of force has shoes that cover .04 m^2, what is the average pressure exerted on the ground by both feet? One foot?
Follows • 2
Expert Answers •1

11/18/15

Physics problem
A) Eric is pushing a lever to lift a 20kg box which lies a distance of .5 meters from the fulcrum. Eric pushes down on the lever with 50N of force, what distance is Eric from the fulcrum?   B)... more
Follows • 2
Expert Answers •1

11/14/15

Explain what causes the passengers to be apparently pushed backward.
As a bus accelerates, the passengers on the bus are jolted toward the back of bus. Explain what causes the passengers to be apparently pushed backward.
Follows • 2
Expert Answers •1

11/07/15

a bomber flying at an angle 30degrees below the horizontal with 240m/s velocity drops a bomb.
a bomber flying at an angle 30degrees below the horizontal with 240m/s velocity drops a bomb. A rocket launcher 300m directly below the bomber fires a shell at exactly the same time bomb was... more
Follows • 2
Expert Answers •2

09/28/15

Physics Word Problem
A monkey walks at 3m/s East for 5 seconds then instantly moves at 2m/s East for another 5 seconds. He then stops for 6 seconds. Finally he instantly moves 3m/s West for 8 seconds. His total trip... more
Follows • 2
Expert Answers •1

09/27/15

Filling a settling pond
A sewage treatment plant has two inlet pipes to its settling pond. One pipe can fill the pond 3 times as fast at the other pipe, and together they can fill the pond in 12 hr. How long will it take... more
Follows • 2
Expert Answers •1

09/26/15

Solving a distance, rate, time problem using a linear equation.
A long distance runner starts at the beginning of a trail and runs at a pace of 4 miles per hour. One hour later, a cyclist starts at the beginning of the trail and travels at a rate of 20 miles... more
Follows • 2
Expert Answers •1

09/23/15

how to solve word problems
alyssa is determined to get some exercise and walks to the store at a brisk rate of 4.5 mph. she meets her friend ellie at the store and together they walk the same distance back at a slower rate... more
Follows • 2
Expert Answers •1

09/21/15

What is the flow rate of water through this pipe?
I have a standard 55 gal drum: 35" tall and 24" wide. At the bottom of the drum at one side is a 1" diameter PVC pipe used to drain water. If the drum is full: what is the flow rate (GMP) of the... more
Follows • 2
Expert Answers •1

09/20/15

Describe the relationship of the angles
Line AB and CD intersect at point E such that E is between A and B and E is also between C and D, creating four angles. Use proper vocabulary and angle names to describe the relationship of the... more
Follows • 2
Expert Answers •1

09/08/15

. What is the player's pitching speed?
A ball player wishes to determine pitching speed by throwing a ball horizontally from an elevation of 5 m above the ground. The player sees the ball land 20 m down range. What is the player's... more
Follows • 2
Expert Answers •1

09/08/15

Kinematics (height and velocity)
A rocket travelling upward has a height above the ground given by x(t)=At2-Bt3, where A and B are positive constants. In terms of A and B, what are is maximum height and velocity the rocket will... more
Follows • 2
Expert Answers •1

09/07/15

A made 18,278 lb of taffy apples with 1 lb of taffy mixture for each 70.3 pounds of apples.how many pounds of apples and how many pounds of taffy were? used?
 you must answer how many pounds were used for apples and taffy
Follows • 2
Expert Answers •1

09/07/15

A store is offering a 15% discount on all items. Write an equation relating the sale price S for am item to its list price L.
A store is offering a 15% discount on all items. Write an equation relating the sale price S for am item to its list price L.
Follows • 2
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.