A boat is 4. 0 meters long and 2. 0 meters wide. Its water line is 1. 0 meter from the bottom of the boat; it is submerged to this water line. What is the mass of the boat?.
we are making a cup of coffee and want the temperature to be just right, so we measure the temoperature with boit fahrenheit and celsius thermometers. the fharenheit meter registers 105 degrees fahrenheit, but you prefer it to be slightly hotter than 135 degrees fahrenheit, so we heat iit up a little. how much will the celcius thermoeter increase when we make this change?
5. a copper wire of length 6.3 m has a potential difference of 1.2 v applied across its ends. what is the current density? can you calculate the e field in the wire?
a computer to be used in a satellite must be able to withstand accelerations of up to 22 times the acceleration due to gravity. in a test to see whether it meets this specification, the computer is bolted to a frame that is vibrated back and forth in simple harmonic motion at a frequency of 8.96 hz. what is the minimum amplitude of vibration that must be used in this test?
9. a fan blade rotates at an angular speed of 0.05 rad/s; its speed is then increased to 3 rad/s at an angular acceleration of 0.60 rad/s2 . (a) find the angle through which it rotates before reaching this final speed. (b) in general, if both the initial and final angular speed are doubled at the same angular acceleration, by what factor is the angular displacement changed?
a coil of wire with 50 turns lies with the cross section of the coil in the plane of the page and has an initial area of 0.240 m2. the coil is now stretched to have no area in 0.100 s. what are the magnitude and direction of the average value of the induced emf if the uniform magnetic field points into the page and has a strength of 1.29 t? magnitude v direction ---select---
a 6 mf capacitor, a 10 mf capacitor, and a 16 mf capacitor are connected in series. what is their equivalent capacitance?
how does the charge of one electron compare to that of another electron? how does it compare with the charge of a proton?
a resistor connected to a 1.5 v battery dissipates 1.0 w. if the battery is replaced by a 3.0 v battery, the power will be
What is the period if the block’s mass is doubled? note that you do not know the value of either m or k , so do not assume any particular values for them. The required analysis involves thinking about ratios.
the water flow meter at the troublesome creek water plant is malfunctioning. the plant superintendent tells you the four dual media filters (each 5.00 m 10.0 m) are loaded at a velocity of 280 m/d. what is the flow rate through the filters in m3/s?
a flat, square coil of 16 turns that has sides of length 14.0 cm is rotating in a magnetic field of strength 0.040 t. if the maximum emf produced in the coil is 34.0 mv, what is the angular velocity of the coil (in rad/s)? (enter the magnitude.) rad/s
what happens to the porosity of a material as it becomes more compacted? group of answer choices the porosity increases. the porosity decreases. the porosity does not change.
gas absorbs 0.0 j of heat and then performs 15.2 j of work. the change in internal energy of the gas is a. -24.8 j b. 15.2 j c. 55.2 j d. -15.2 j e. none of these are correct
100 kj of energy is introduced to your cell phone while it charges but 10 kj of energy is lost in the process as heat given off to the surroundings. what is e for the system?
what is elastic potential energy? is there anything around you now that possesses elastic potential energy? g
