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If the magnitude of the force on a 4.0-m length of one of the wires is 6.7 µN, what are the values of the two currents? (Enter your answers from smallest to largest.)
A charging bull elephant with a mass of 5500 kg comes directly toward you with a speed of 4.20 m/s. You toss a 0.150-kg rubber ball at the elephant with a speed of 9.63 m/s. When the ball bounces ba
If the duration of shock was 0.1 second, which was the force exerted by the floor on the egg so that it broke?
If the slope of the equilibrium line connecting the solid and liquid phases has a negative slope, what does this imply for the change in the freezing point of water with temperature?
A magnetic field is oriented at an angle = 60 degrees to the normal of a rectangular area. If the magnetic field has a strength of B = 4*10^-3T and magnetic flux through the surface has a magnitude
An asteroid of mass 59,000 kg carrying a negative charge of 12.0 μC is 170 m from a second asteroid of mass 58,000 kg carrying a negative charge of 15.0 μC . What is net force the asteroids e
Two equal point charges of magnitude 4.0 µC are situated along the x-axis at x1 = -2.0 m and x2 = -2.0 m. What is the electric potential energy of this system of charges?
The charging circuit for the flash system of a camera uses a 130uF capacitor that is charged from a 250V power supply.
A proton (charge = 1.6 x 10-19) travels through a magnetic field of 1.78T with a velocity of 2.3 x 105 m/sec. What is the magnitude of force experienced by the proton?
A electric wire with 3.85A current is placed in a magnetic field of strength .97 T. The .54m long wire makes an angle of 42o with the direction of magnetic field. What is the force on the wire?
A bottle has a mass of 35.00 g when empty and 98.40 g when filled with water. When filled with another fluid, the mass is 88.80 g. What is the specific gravity of this other fluid?
Assuming the maximum pressure difference his lungs can manage and still breathe is -81 mm Hg, calculate the deepest he could have been.
What is the speed of the train at the end of this distance? How long did it take for the train to travel the 210 m?
The electrons then pass through a 0.29 T magnetic field that deflects them to the appropriate spot on the screen. Find the magnitude of the maximum magnetic force that an electron can experience.
The x, y, and z components of a magnetic field are Bx = 0.12 T, By = 0.14 T, and Bz = 0.17 T. A 25 cm wire is oriented along the z axis and carries a current of 3.8 A. What is the magnitude of the m
What is the rotational inertia of a solid iron disk of mass 48 kg, with a thickness of 3.57 cm and radius of 19.5 cm, about an axis through its center and perpendicular to it?
What is the minimum coefficient of static friction between the penny and the surface of the disk to ensure that the penny doesn't fly off? Give answer with 5 significant figures.
An achromatic lens is made of two very thin lenses, with focal lengths f1 = -28.7 cm and f2 = +20.4 cm, that are placed in contact.
When 250 g is hung from the spring and set into simple harmonic motion, what is the period of the oscillation?
A 61.0-kg skier starts from rest at the top of a ski slope of height 67.0 m
A turntable must spin at 33.6 rpm (3.52 rad/s) to play an old-fashioned vinyl record. How much torque must the motor deliver if the turntable is to reach its final angular speed in 1.0 revolutions,
The beam contains two wavelengths, 450.0 nm and 700.0 nm, for which the index of refraction of the glass is 1.4820 and 1.4742, respectively. What is the angle between the two refracted beams?
If the human body has a total surface area of 1.20 m^2 and the surface temperature is 30°C, find the total net rate of radiation of the energy from the body if the surroundings are at a temperat
Monochromatic light falls on two very narrow slits 0.053 mm apart. Successive fringes on a screen 5.60 m away are 6.0 cm apart near the center of the pattern. Find the wavelength and frequency of th
What is the work done by the force you exert on the bag?