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A 0.280-kg ball makes an elastic head-on collision with a second ball initially at rest. The second ball moves off with one-fourth the original speed of the first ball. What is the mass of the seco
The space between the plates is filled with a dielectric material, and the electric field within the dielectric is 0.350 MV/m.What is the dielectric constant?
Determine (a) the capacitance and (b) the maximum voltage that can be applied to a Teflon-filled parallel- plate capacitor having a plate area of 175 cm2 and an insulation thickness of 0.040 0 mm.
Different distances from the axis of rotation. If you release the hanging blocks simultaneously from rest, and if the ropes do not slip, which block lands first?
The force exerted by the wind on the sails of a sailboat is Fsail = 470 N north. The water exerts a force of Fkeel = 150 N east. If the boat (including its crew) has a mass of 290 kg, what are the
Three of the charges are positive and one is negative. Determine the magnitude of the net electric field that exists at the center of the square.
A space traveller whose mass is 101kg leaves earth. What are his weight and masson earth and in interplanetary space where there are no nearby planetary objects?
Do work equal to W to bring a very small charge q from infinity to the sphere of radius b. Based on this info, find the total charge Q that this system of 3 spheres holds.
A kayaker needs to paddle north across a 100 wide harbor. The tide is going out, creating a tidal current that flows east at 2.0 . The kayaker can paddle with a speed of 3.0 . In which direction sh
When the object is 0.020m from its equilibrium position it is moving at speed 0.55m/s. (a) Calculate the amplitude of the motion, (b) Calculate the maximum speed attained by the object.
Before the collision the pendulum was at rest but immediately after the collision the pendulum is moving with speed of 13.6 m/s. How fast was the bullet traveling before the collision?
From your present location, how much farther away from the loudspeaker would you have to move to reach this reduced decibel level?
A 2000-kg blue truck traveling east collides and sticks to a 3000-kg orange truck traveling with a speed of 7.3 m/s to the west (define the easterly direction to be the positive direction). Immedia
A 3.5 kg fish swimming 2 m/s swallows an absent minded 1 kg fish swimming toward it at a velocity that brings both fish to a halt immediately after lunch. What is the velocity v of the smaller fish
If the pendulum were moved to Jupiter, which is much, much larger and more massive than Earth, then the cyclic frequency of oscillation would increase.
The next day, another plane flies directly from A to airport B in a straight line. In what direction should the pilot travel in this direct flight? (Assume there is no wind during these flights.)
A parallel plate capacitor of area 0.3m^2 holds equal but opposite charges of magnitude 30 microcoulombs on either side. what is the electric field between the plates? Towards which plate is it direct
Two speakers, 4.00 m apart, are driven by the same audio oscillator so that each one produces a sound consisting of two distinct frequencies, 1000 Hz and 1360 Hz. The speed of sound in the room is
The averageacceleration between t=2.00s and t=3.00 s d)the instantaneous acceleration at t=2.00s and t=3.00 s e) at what time is the object at rest ?
An object weighing 302 N in air is immersed in water after being tied to a string connected to a balance. The scale now reads 277 N. Immersed in oil, the object weighs 275 N. Calculate the density
Two point charges are placed along the x-axis. Charge q1 = +25microcoulombs is fixed in place at x=+9cm and charge q2 = -36 microcoulombs is fixed at x = +3cm. what is the net electric field at the
The area placed on the other end of the hydrolic apparatus is 2.75 m squared. What is the force needed on one end of apparatus in order to lift the car? how much work is done lifting the car?
A firefighter of weight 875 N stands 6.3 meters from the bottom of the ladder. What is the vertical and horizontal components in N of the force exerted on the ladder by the ground?
How great a weight can be hung from the wire without exceeding the proportional limit? How much does the wire stretch under this load?
75- block at rest on a ramp of height . When the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough