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An object has a volume of 3.29m^3 and a mass of 3000 kg. If the object were attached by a cable to the bottom of a swimming pool, what would be the tension in the cable
A cube with edge 3.0 cm floats with 2/3 of its volume below the surface of the water. What is the mass of the block
A 70 kg person stands on one foot. If his foot is approximately a(n) 8.0-cm by 30-cm rectangle, what is the average pressure beneath his foot
In a series R-L-C circuit, R= 300oms, Xc=300oms and XL=500 oms . The average power consumed in the resistor is 60.0 W. What is the power factor of the circuit
Two isotopes having the same mass number are known as isobars. Calculate the difference in binding energy per nucleon for the isobars 23/11 Na and 23/12 Mg
Three charges are positioned on a line. Q1= -2uC, Q2= +5uC, Q3= +3uC. The distance between Q1 and Q2 is a=0.25m. Find the direction of the electric force acting on the charge
small object is placed to the left of a convex lens and on the optical axis. What is the position of the image formed by the lens
An electron has an initial velocity of 5.00 106 m/s in a uniform 3.00 105 N/C strength electric field. What is the direction of the electric field
An object fired at an angle of 35.0(degrees) above the horizontal takes 1.87s to travel the last 11.4m of its vertical distance, With what velocity was the object launched
A crate of weight W=550 lb has been attached to a pickup truck by a rope whose tensile strength is T_max=350 lb. determine the maximum acceleration of the truck
the rms current produced by a single coil of an electric guitar is 0.025A. How large is the maximum instantaneous current
When rebuilding her car's engine, a physics major must exert 450 N of force to insert a dry steel piston into a steel cylinder at a constant velocity. What is the normal force between the piston and
An ac generator has a maximum potential difference output of 155V. find the rms potential difference output
An audio amplifier provides an alternating rms potential difference of 15.0V. A loudspeaker connected to the amplifier has a resistance of 10.4 ohm. what is the rms current in the speaker
Tarzan, who weighs 639 N, swings from a cliff at the end of a convenient vine that is 18 m long, What would the greatest force on the vine be during the swing
The air inside a bicycle tire pump has 206 joules of work done on it as 78.6 joules of heat is conducted away from it
A bungee cord is stretched between two poles with a force of 434 N. What is the velocity of a wave on this bungee cord
Scientists in a laboratory produce a sound wave in a simulated environment (air) with a velocity of 473 m/s
A 539 Hz sound wave travels through a substance. What is the speed of sound in the substance
A 0.037 kg aluminum bullet traveling at 460 m/s strikes an armor plate and comes to a stop. what is the bullet's temperature change in degrees Celsius
A 7.05 10-3-kg plastic ball with a charge -0.156 µC is suspended from a ceiling with an insulating thread such that the ball stays between the plates of the capacitor. What is the magnitude of
A proton accelerates from rest in a uniform electric field of 524 N/C. What is the magnitude of the acceleration of the proton
you are on a boat in a fog and know there are cliffs ahead of you somewhere, but you cannot see them. How far away are the cliffs
A 4 kg blue ball moves to the right at 6 m/s. A 3 kg red ball moves to the left at 7 m/s. How fast and in what direction is the red ball moving
A diffraction grating has a line density of 580 . This grating produces a 1st order maximum at a distance of 2.52 from the central maximum on a screen which is 5.40 away