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A soldering iron employs an electric current in a wire to heat the tip. The transformer with 100 turns on the secondary coil gives 55 W at an rms voltage of 28 V. Find the resistance of the wire in
Find which of the given properties apply to graph of y=sinx. Find which of the given properties apply to graph of y= cos x.
A resistor dissipates a 2.00 W if the rms voltage of the emf is 10.0 V. At what rms voltage will the resistor dissipate to 12.0 W?
Plate A is kept at zero potential, and plate B at a potential of 400.0 V. The proton will not reach plate B.Determine with what speed will it hit plate A?
Find out the distance from the moon to the point between Earth and the Moon where the gravitational pulls of Earth and Moon are equavalent?
Write any program or method to create the text document on TI-89 that expresses formula like when you enter it into calculator: A=P(1+(r/n))^nt.
The speed of light in water is 2.25 x 10^8 m/s. By using Einstein's thinking, describe whether it is possible for a particle to travel via water at a speed greater than 2.25 x 10^8 m/s.
The object with mass m is placed halfway between an object of mass M and an object of mass 3M which are separated by a distance d. Find out the magnitude of force on the object with mass m?
The hydrogen atom comprises of a proton of mass 1.67 x 10^-27 kg and an orbiting electron of mass 9.11 x 10^-31 kg. In one of the orbits, the electron is 5.3 x 10^-11 m from the proton. Determine th
The 30-ft tree casts the 16-foot shadow on horizontal ground. Girl standing at the tip of shadow is looking at the bird nesting at top of tree. At what angle is girl looking up?
The total force on an object in the positive x direction. Consider the given statements:
Assume that terminal side of angle a lies in quadrant II and terminal side of angle B lies in quadrant I. If tan a=-3/4 and cos B=3/8, determine exact value of cos (a-B).
Determine amount of radioactive lead remaining after (a) three years, (b) eight years, (c) fifteen years, (d) compute the half life.
A proton is liberated in a uniform electric field, and it experiences an electric force of 2.8 multiplied by 10-14 N toward the south. Determine the magnitude and direction of the electric field?
After 15 minutes, temperature of coffee is 39 F. Utilize newtons law of cooling to compute coffee's temperature after 20 minutes.
The rectangle is inscribed with its base on a x axis and its upper corners on curve y=16-x^4. Determine dimensions of such a rectangle which has greatest possible area?
In Physics, the radioactive decay is the procedure in which the unstable atom spontaneously emits particles and radiation. Determine k if 25% of Radium disappears after 120 years.
Determine the volume of air at moment. Illustrate the steps which lead to the solution with correct units of measure.
The projectile is fired from the tall building in such a way that it is h meters above ground and t seconds after firing. Compute maximum height reached by projectile.
Express a formula for the magnetic field at an arbitrary point on the z-axis. Note by symmetry that B(x) = Bz(z) k.
A difference quotient of given funtion y=f(x) is stated as. Determine difference quotient for f(x)=3x-2. Illustrate the steps and substutution for the solution.
Blood takes around 1.0 s to pass via a 1:0 mm-long capillary. The diameter of the capillary is 7.0 μm and the pressure fall through the capillary is 2.60 kPa. Find out the viscosity of blood in m
A 25 cm long horizontal tube with the interior diameter of 1.2 mm consists of water flowing through it at 0.30 mL/s. Take the viscosity of water to be 1.00 mPa * s. Find out the pressure difference
If the car runs over the nail at 55 mph and nail is lodged in tire tread 13 in. from center of wheel, then find angular velocity of nail in radians per hour?
Two similar coaxial coils of wire of radius 32.1 cm are directly on top of one other, separated by a 3.07 mm gap. The lower coil is on the flat table and consists of a current i in the clockwise dir