02/24/17

Averag induced emf
A 50 loop circular coil has a radius of 0.03 m.  It is oriented so that the field lines of a magnetic field are normal to the area of the coil.  Suppose that the magnetic field is varied so that B... more
Follows • 3
Expert Answers •2

02/24/17

Physics question
A slotted link is rotating about fixed pivot O with a counterclockwise angular velocity of 3 rad/s, and a clockwise angular acceleration of 2 rad/s2. The movement of the link is causing a rod to... more
Follows • 2
Expert Answers •1

02/20/17

Physics electricity
An 0.050 m long wire carrying current of 30 A is placed in a uniform magnetic field, B = 0.80 T, such that the wire is oriented so it's length runs perpendicular to the field.  Find the magnitude... more
Follows • 2
Expert Answers •1

02/20/17

Physics electricity question
A particle of charg, q, enters a region where an electric field is uniform, E = 80000 V/m, and directed downward (-y direction).  Perpendicular to the electric field, and directed in the + z... more
Follows • 3
Expert Answers •1

02/19/17

Linear speed
Earth rotates on an axis through its poles. The distance from the axis to a location on Earth at 40 degrees north latitude is about 3033.5 miles. Therefore a location on Earth at 40 degree north... more
Follows • 2
Expert Answers •1

02/19/17

You see a highway warning sign that says, “6% downgrade, trucks use lower gear.” Approximately what is a 6% slope, when expressed in degrees?
 You see a highway warning sign that says, “6% downgrade, trucks use lower gear.” Approximately what is a 6% slope, when expressed in degrees?
Follows • 4
Expert Answers •3

02/19/17

when do I use absolute value brackets in the electric field equation E=k(q)/r^2 ?
when do I use the absolute value brackets on the point charge?   E = k (q)/r^2    vs   E = k |q|/r^2    ?
Follows • 3
Expert Answers •2

02/18/17

Calculating acceleration of a braking car.
A 1.5 tonne car travelling at 100km/h suddenly brakes. The brakes provide an overall force of 50 times the normal reaction. Calculate the acceleration of the car.
Follows • 2
Expert Answers •1

02/18/17

The sodium lamp used in a physics laboratory gives out light uniformly. Suppose that the lamp uses 40 W. Calculate the magnitude of electric field
The sodium lamp used in a physics laboratory gives out light uniformly. Suppose that the lamp uses 40 W. Calculate the magnitude of electric field?
Follows • 2
Expert Answers •1

02/17/17

question 1
A)   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. If the proton is fired at a speed of 3.2×10^7... more
Follows • 2
Expert Answers •1

02/16/17

Electric Potential
Part a is as follows: A long cylindrical insulator has a uniform charge density of 1.89 μC/m3 and a radius of 5 cm. What is the electric field inside the insulator at a distance of 4 cm? Answer in... more
Follows • 3
Expert Answers •2

02/14/17

Law of Conservation
A rocket is standing by to launch. While sitting on the launching pad the rocket has zero velocity and thus zero initial momentum (p1=0). When the rocket takes off, a bystander proclaims that the... more
Follows • 3
Expert Answers •2

02/14/17

in work done a specified amount of energy is consumed then during free fall how the total energy remain constant?
When there is free fall there is work done then how the energy "mgh" remain constant all over the way. 
Follows • 3
Expert Answers •2

02/13/17

A potential energy function can be specified for a dissipative interaction.
A potential energy function can be specified for a dissipative interaction.  
Follows • 2
Expert Answers •1

02/12/17

Calculate the half life
A 1.00 g sample of samarium emits alpha particles at a rate of 120 particles/s. Theresponsible isotope is 147 Sm, whose natural abundance in bulk samarium is 15%. Calculatethe half life.
Follows • 2
Expert Answers •1

02/10/17

Why is AM and FM in binary?
Why don't we code electromagnetic waves with AM and FM in more then two different frequencies/amplitudes? 2 to the power n seems less interesting than 3 or more to the power n for coding information.
Follows • 3
Expert Answers •2

02/09/17

throw a bottle and let go what happens to my body momentum question
I weigh 200lbs im holding a bottle that weighs 5lbs. I go to through the bottle at a velocity of 5mph at someone and at the last possible moment i change my mind and simply drop the bottle. How far... more
Follows • 2
Expert Answers •1

02/05/17

4. Two closed organ pipes of length 0.5 m and 0.525 m are sounded together and produce 6 beats per second.
4. Two closed organ pipes of length 0.5 m and 0.525 m are sounded together and produce 6 beats persecond. What is the velocity of sound in the medium with which the organ pipes are filled?
Follows • 3
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

02/01/17

I NEED HELP WITH THIS PHYSICS QUESTION
In the figure below, determine the point (other than infinity) at which the electric field is zero. (Let q1 = -2.40 µC and q2 = 6.20... more
Follows • 2
Expert Answers •1

02/01/17

physics question
A uniformly charged disk of radius 35.0 cm carries a charge density of 8.60 ✕ 10-3 C/m2. Calculate the electric field on the axis of the disk at the following distances from the center of the... more
Follows • 3
Expert Answers •1

01/29/17

To find out potential energy of a dipole
If potential energy of a dipole is chosen to be zero when dipole mement makes pi/3 with uniform electric field E then potential energy when dipole moment vector becomes parallel to the electric... more
Follows • 2
Expert Answers •1

01/26/17

Science for 7th grade question!!
A cold can of soda is taken out of the refrigerator. It slowly warms up until it is at room temperature. Once the soda has warmed up, it has more thermal energy than it had in the refrigerator.... more
Follows • 2
Expert Answers •1

01/26/17

A spring is compressed and released, what is the decrease in amplitude for one-half cycle?
A mass-spring system oscillates such that the mass moves on a rough surface having coefficient of friction u, it is compressed by a distance a from its normal length and on being released it... more
Follows • 3
Expert Answers •1

01/26/17

power and force on a pendulum
a pendulum of mass 1 kg and length 1 m is released from rest at angle 60 degree. The power delivered by all the forces acting on a bob at angle 30 degree is
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.