09/25/16

Kinematics calculate acceleration
 An airplane is recovered aboard an aircraft carrier with a steel cable that brings airplane from 69 m/s to the ship speed of 15.0 m/s over displacement of 81 m calculate the acceleration required... more
Follows • 2
Expert Answers •1

09/23/16

Spring Balance readings
a pulley of negligible weight is suspended by a spring balance '8'. Masses of 3 kg and 7 kg respectively are attached to opposite ends of a string passing over a pulley 'P'. The spring balance reads'? more
Follows • 3
Expert Answers •2

09/22/16

An object of mass 75.0kg moves in a circle of radius 1.0m with a velocity of 2.0m/s
what is the force exerted by this object
Follows • 2
Expert Answers •1

09/22/16

A 70.0 kg student runs up a stairway to a heigh of 10.0m above the ground in 10.0 s
if the work done in the process is 6860j what is the power generated by the student in kW 
Follows • 3
Expert Answers •2

09/22/16

An airplane is climbing at an angle of 20 above the horizontal with a speed of 200 km/h. When the plane reaches an altitude of 2 km it releases a crate.
We have to find the range of crate
Follows • 3
Expert Answers •2

09/22/16

I need help finding the solution to a vector problem from my calc 3 lab.
I've tried to answer the problem but I'm pretty sure that everything I did was wrong. Here's the problem.   This fun problem relates to physics. In case you’re not a physics major, we urge you... more
Follows • 2
Expert Answers •1

09/22/16

A body falls freely through a height of 5m .find the kenetic energy when it reach the ground and slow that it equals the potential energy before falling?
10 kg body falls freely through height of 5m .what is the Kenetic energy when it reach the ground and the potential energy before falling?  
Follows • 3
Expert Answers •2

09/20/16

for the hydrogen atom, calculate the frequency and wavelength of light emitted for an electronic transition from n=5 to n=2
I need to know how to solve this not just the answer
Follows • 2
Expert Answers •1

09/20/16

True or false about a statement considering continuity and the derivative.
If f'(a) is defined, then f(x) is continuous at x=a.   True or False? I'm not exactly sure what this means. Isn't f'(a) the tangent slope? and since there can only be one it can't be continuous... more
Follows • 3
Expert Answers •2

09/19/16

A short shunt dc compound generator supplies200V at 100A .
The resistance of Armature ,series and shunt field winding are 0.04,0.03 and 60 ohm respectively.Find the emf generated and also find the emf generated if the same machine is connected as a long... more
Follows • 2
Expert Answers •1

09/18/16

please help! physics vector question in description.
You're out walking the dog when suddenly your find yourself standing on a frictionless oil slick. The dog is gently pulling on the leash, giving a 4.7 Newton force due North. Simultaneously a... more
Follows • 3
Expert Answers •2

09/17/16

Physics While strolling downtown on a Saturday after, find the magnitude of car's acceleration.
While strolling downtown on a Saturday afternoon, you stumble across an old car show. As you are walking along an alley toward a main street, you glimpse a particularly stylish Alpha Romeo pass by.... more
Follows • 4
Expert Answers •3

09/17/16

Bungee jumping and energy transfers
On the sheet I have it shows a diagram of a bungee jumper at three different positions: waiting to jump (position 1), at E point where the bungee rope is fully unwound and about to start stretching... more
Follows • 3
Expert Answers •2

09/15/16

induced emf
Loop A of radius r moves towards loop B (radius R >>r ) with a constant velocity in such a way that their planes parrallel . What is the distance between two loops in terms or R when the... more
Follows • 2
Expert Answers •1

09/15/16

inductance
A buld rated of 100V, 100 W it can be treated as a resistor . Find out inductance of an inductor called choke coil that should be connected in series with bulb to operate the bulb at its rated... more
Follows • 2
Expert Answers •1

09/14/16

projectile motion,what are the equations for initial vertical position , launch speed and time of flight?
Hi, if I want to find the initial vertical position of a projectile, the launch speed of the projectile and the time of flight of the projectile , what equations do I use? Thanks.
Follows • 2
Expert Answers •1

09/14/16

What are the emotions of these pictures? Explain as many as you can. Thanks.
Source 2: Can Vegetables,Fruit, and theKaiser TooSource 3: The Rape ofBelgiumSource 4: Remember BelgiumSource 5: Beat Backthe HunSource 6: Blot it Out!Source 7: Keep These Offthe U.S.A.!Source 8:... more
Follows • 2
Expert Answers •1

09/13/16

Physics projectile launcher
a) if you decrease the launch speed what hpens to the flight of time? b) if you place the launcher on a shorter table what would happen to the time of flight c) if you increase the mass of the... more
Follows • 3
Expert Answers •2

09/13/16

Find x and y component of vector a ?
a) Find the x component of vector a (4.0m/s^2 , -y direction)    b) Find the y compoent of vector a  (4.0m/s^2 , -y direction)    What I dont understand is " -y direction" . On the cartesian... more
Follows • 4
Expert Answers •3

09/12/16

A lab conducts 1000 trail scattering probability experiment. Nine target marbles were used on a 45.0 cm board. Marble diameter 1.48cm.
If the standard value for the marble diameter is 1.55 cm, what is the percent error in the experimental marble diameter? How many hits were recorded during the experiment?
Follows • 1
Expert Answers •1

09/12/16

A spring requires a force of 25 N to produce an extension of 2 cm in it. What is the work done in further extending it by 3 cm.
A spring requires a force of 25 N to produce an extension of 2 cm in it. What is the work done in further extending it by 3 cm.
Follows • 2
Expert Answers •1

09/11/16

Two sounds have intensities of 50db and 75db. In comparing these two sounds, what statements can you make?
This is a music math problem. 
Follows • 2
Expert Answers •1

09/10/16

Really confused with this question. Please help!
The following diagram (sorry, cant put in the diagram)shows what happened 10 minutes after the start of an experiment. The starch suspension in the membrane turned blue-black while the iodine... more
Follows • 2
Expert Answers •1

09/10/16

Cars,acceleration,time and total displacement
A car slows down from an initial velocity of 90km/h to a final velocity of 36.0 km/h at a constant rate while undergoing a displacement of 105m. A) what is the acceleration? B) if the car continues... more
Follows • 2
Expert Answers •1

09/09/16

Hard AP Physics Question (Meteorite hits car)
In 1992, a 14-kg meteorite struck a car in Peekskill, NY, leaving a 20-cm deep dent in the trunk.    (a) If the meteorite was moving at 500 m/s before striking the car, what was the magnitude of... more
Follows • 3
Expert Answers •2

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.