A circular wire loop of radius r = 19 cm is immersed in a uniform magnetic field B = 0.690 T with its plane normal to the direction of the field. If the field magnitude then decreases at a constant rate of −1.0×10^-2 T/s, at what rate should r increase so that the induced emf within the loop is...
A small loop of wire of radius 2.0 cm is placed at the center of a wire loop with radius 24 cm. The planes of the loops are perpendicular to each other, and a 6.0 -A current flows in each. Estimate the magnitude of the torque the large loop exerts on the smaller one.
I know the rules but I...
What is the value of q/m for a particle that moves in a circle of radius 6.2 mm in a 0.56 T magnetic field if a crossed 220 V/m electric field will make the path straight?
q/m=2v/(br)^2
This was given to us in our lab and i plugged everything in and it doesn't turn out right...
Find the Fourier expansion of one period of f(t)=1+t absolute value of t<1
I found this to be 1+2/pi Sigma(0 to infinity) ((-1^(n+1))/n)sinnpit by just the standard methods of the a0 an and bn formuals, which I know is correct
Now the parts I am having problems with is part b and c...
Compute the voltage drop along a 25 m length of household no. 14 copper wire (used in 15A circuits). The wire has diameter 1.628 mm and carries a 15 A current.
Vdrop=I*R
R=rho(L/A)
I just plugged the resistivity of copper wire which is 1.72*10^-8, length, and area into find the...
A. Suppose in the figure that C1 = C2 = C3 = 54.2 microfarads and C4 = 68.1 microfarads.
If the charge on C2 is Q2 = 62.4 microfarads determine the charge on each of the other capacitors.
B. charge=voltage*capacitance
series equivalent capacitance=1/c1 + 1/c2 + 1/c3 + ...
A 13.4 cm radius thin ring carries a uniformly distributed 14.8 microC charge. A small 8.2 g sphere with a charge of 2.4 microC is placed exactly at the center of the ring and given a very small push so it moves along the ring axis (+ x axis).
How fast will the sphere be moving when it is 1.8...
Homework Statement
Determine magnitude of the electric field at the point P. The two charges are separated by a distance of 2a. Point P is on the perpendicular bisector of the line joining the charges, a distance x from the midpoint between them. Express your answer in terms of Q, x, a, and k...
Homework Statement
Two stars 18 light-years away are barely resolved by a 68 -cm (mirror diameter) telescope. How far apart are the stars? Assume \lambda = 540 <units>nm</units> and that the resolution is limited by diffraction.
Express your answer using two significant figures...
How much pressure is needed to compress the volume of an iron block by 0.16 \%? Express your answer in {\rm{N/m}}^2.
I know pressure is the same as stress, and that stress is force/csa. Could someone point me in the right direction.
A marble column of cross-sectional area 1.5 m^2 supports a mass of 2.5×10^4 kg.
What is the stress within the column?
What is the strain?
I have already found the stress in the column by taking (25000kgx9.8 m/s^2)/1.5m^2
The problem is i have no clue how to find the strain given...
I found that the velocity is = to .9495 m/s, I found this using .5mv^2 - force of friction*distance the spring compressed=.5kx^2. is this correct and from here would I just plug this velocity into mbullet*velocitybullet= m(bullet+block)*.9495?