Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
A 280 g block on a 50 cm-long string swings in a circle on a horizontal, frictionless table at 70 rpm. What is the speed of the block? What is the tension on the string?
A charge is located at the center of sphere A (radius RA = 0.0010 m), which is in the center of sphere B (radius RB = 0.0012 m). Spheres A and B are both equipotential surfaces. What is the ratio VA
a length of L which is very long compared to the diameter of the shell, neglect edge effects. What is the electric field at 9.4 cm from the central axis?
A 0.450-kg ice puck,moving east with a speed of 300m/s, has a head-on collision with a 900-kg puck initially at rest.Assuming a perfectly elastic collision, what will be the speed and direction of
As a result of this completely inelastic collision, the spring is compressed along its axis and causes the bullet/block to oscillate with an amplitude of 0.200-meters. What is the speed of the bulle
A compound microscope is constructed by arranging two convex lenses so that the objective lens produces a lateral magnification of 130 times and the eyepiece gives an angular magnification of 4.00 t
A ball is swinging freely in a plane. The mass of the ball is 4kg, and the maximum height, h, is 2.5 m. Ignoring friction, what is the maximum kinetic energy of the ball as it swings back and forth
A pair of charges sits on the x-axis, a charge Q1 = +8 nC at the origin and Q2 = +2 nC at x = 5. All coordinates are in meters. What is the potential at x = -6?
A woman on a 10-speed bicycle travels T 9 m/s relative to the ground as she passes a little boy on a tricycle going in the opposite direction. If the boy is traveling at 1 m/s relative to the ground
What is the speed of the block when it passes back through the X=0 position? (b) Determine the angular frequency (w) of this system.
a firefighter of mass 98kg slides down a vertical pole with an acceleration of 4.9m/s^2. what is the friction force that acts on the firefighter?
On the planet Newtonia, a simple pendulum having a bob with mass 1.00 and a length of 180.0 takes 1.32 , when released from rest, to swing through an angle of 12.5 , where it again has zero speed. T
The rms speed of an oxygen molecule (O2) in a container of oxygen gas is 542 m/s. What is the temperature of the gas?
Derive an expression for the angular frequency (w) of the motion. Express the answer in terms of (R) and (g), the acceleration due to gravity.
Driving in your car with a constant speed of 12 {rm m}/{rm s}, you encounter a bump in the road that has a circular cross-section. If the radius of curvature of the bump is 35 {rm m}, find the appa
Blocks with masses of 2 , 4 , and 5 are lined up in a row on a frictionless table. All three are pushed forward by a 50 force applied to the 2 block
A car traveling at 31 m/s runs out of gas while traveling up a 8.0 degree slope.How far will it coast before starting to roll back down?
What is the force causing the centripetal acceleration on the puck?
If two 110.0 kg objects are suspended at the lower ends of cables 30.00 m long and the cables are attached to the ceiling 1.000 m apart, what is the deflection of each object?
When another object of mass m2 is hung on the spring along with m1, the frequency of the motion is 4.00 Hz. Find the ration of m2/m1 of the masses.
There is a spot of paint on the front wheel of the bicycle. What angular displacement has the spot of paint undergone between time 0 and 2 seconds?
A rifle with a barrel length of 55 cm fires a 10 g bullet with a horizontal speed of 450 m/s/s. The bullet strikes a block of wood and penetrates to a depth of 15 cm. How long does it take the bull
An ion accelerated through 300.00 V has its potential energy decreased by potential energy of 9.60 10-17 J. Calculate the (magnitude of the) charge on the ion.
The rotational inertia of a collapsing spinning star changes to 1/2 its initial value. What is the ratio of the new rotational kinetic energy to the initial rotational kinetic energy (KEnew / KEi)?