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An electron with velocity v= 1x10^6 m/s is sent between the plates of a capacitor where the electric field is E=500 V/m. if the distance the electron travels through the field is 1cm, how far is it
Find the magnitude and direction of F2 when the acceleration of the box is (a) +4.2 m/s2, (b) -4.2 m/s2, and (c) 0 m /s2
A charge of +22.2 C is at the origin. When charge Q is placed at 2 m along the positive x axis, the electric field at 2 m along the negative x axis becomes zero. What is the value of Q? Express the
A solid copper and glass sphere are equally negatively and positively charged, respectively. Draw diagrams showing the distribution of the charges of both spheres when they are separated by 1) a la
A charged styrofoam ball of mass 100g hangs motionless from a string that makes and angle 10 degrees with respect to vertical. The inclination of the string is due to a horizontal electric force on
A parallel-plate capacitor is made from two aluminum-foil sheets, each 5.4cm wide and 5.9m long. Between the sheets is a Teflon strip of the same width and length that is 4.0×10-2mm thick. Wha
Two point charges are placed along a horizontal axis with the following values and positions: +3 µC at x = 0 cm and - 11 µC at x = 53 cm. At what point (the coordinate) along the x axis
A bartender slides a beer mug at 1.9 m/s towards a customer at the end of a frictionless bar that is 1.1 m tall. The customer makes a grab for the mug and misses, and the mug sails off the end of th
With the atmospheric pressure of 99.9 kN/m^2 at 30 degrees Celsius. Determine the column height in meters (and feet) if mercury is used.
The plates are separated by 0.30mm, and the space between the plates is filled with a dielectric with dielectric constant \kappa. When the charge on the capacitor is 1.8\mu C the potential differenc
Assuming 100% efficiency, to what height can the motor lift a 6.0- g mass? What initial voltage must the capacitor have if it is to lift a 6.0 g} mass through a height of 1.3cm ?
Calculate the final equilibrium temperature assumning no heat loss after mixing occurs.
250 cm3 of hot tea at 89°C are poured into a very thin paper cup with 10 g of crushed ice at 0°C. Calculate the final temperature of the "ice tea". (Hint: think about two processes: melting
The space between the plates is filled with a dielectric whose dielectric constant is 1.8. What is the potential difference between the plates when the charge on the capacitor plates is 4.2mu C ? Ca
The electric force between two charged particles becomes weaker with increasing distance. Suppose instead the electric force were independent of distance .
A 15 g lead bullet traveling at 240m/s passes through a thin wall and emerges at a speed of 160m/s . If the bullet absorbs 54% of the heat generated, what will be the temp. rise of the bullet?
The damping force on the motion of the mass is proportional to the instantaneous speed of the mass, and is equal to 80 N when the speed is 2 m/s. Find the frequency fr at which resonance occurs.
Assuming laminar flow through a needle 1 inch in length, if you need to inject 3cubic centimeters (cc) of medicine into a patient in 15 seconds, what is the pressure difference for the case of a 16
The peripheral nervous system and reflex activity, The Mysterious Episodes of Mary: A Case Study on Neuroanatomy Episode 1 Mary Lazarro, a 44-year-old mother of two, made an appointment with her p
A long pipe of outer radius 3.80 cm and inner radius 3.23 cm carries a uniform charge density of 6.22 mC/m3. Using Gauss\'s law and assuming the pipe is sufficiently long to consider it infinitely
A tire is filled with air at 22oC to a gauge pressure of 240 kPa. After driving for some time, if the temperature of air inside the tire is 45oC, what fraction of the original volume of air must be
A box-shaped wood stove has dimensions of 0.75 m x 1.2 m x 0.40 m an emissivity of 0.81, and a surface temperature of 210 degree C. Calculate its rate of radiation into the surrounding space. Pleas
A two-stage missile is fired vertically from rest with acceleration as shown in the graph. In 15 sec, the first stage, A, burns out and the second stage, B, ignites. How fast is the missile moving a
A charge of 18 nC is uniformly distributed along a straight rod of length 3.0 m that is bent into a circular arc with a radius of 2.5 m. What is the magnitude of the electric field at the center of