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A female orb spider has a mass of 0.45g . She is suspended from a tree branch by a 1.0m length of 0.0020-mm-diameter silk. If you tap the branch and send a vibration down the thread, how long does it
A dentist causes the bit of a high-speed drill to accelerate from an angular speed of 1.05 x 10^4 rad/s to 3.14 x 10^4 rad/s. In the process, What is the frequency of red light with a wavelength in v
A toy top has a string wrapped around its body. The string has a length of 64cm and is wrapped around the top at a place where its radius is 2.0cm. What is the final angular velocity in rpm of the t
A boy of mass 35 kg and a girl of mass 40 kg are skating towards each other with speeds of 2.5 m/s, and 2.0 m/s respectively. Assume that there is no friction, and find their combined velocity after t
A frictionless spring of spring constant 500 N/m has one end attached to a verticalwall and the other end to a block of mass 2.0 kg, Find the amplitude and frequency of oscillation
Communications satellites are placed in a circular orbit where they stay over a fixed point on the equator. Find average speed of the satellite in geosynchronous orbit
A solid disk of radius R and mass 2.66 kg is spinning at angular velocity 66.2 rpm about a vertical axis. What is the mass of the second disk
A wheel rotates about a horizontal axis, as shown in the figure. It has an outer radius R1 = 18.8 cm and mass M1 = 4.51 kg. What is the acceleration of the hanging weight after it is released
The balance wheel of a watch oscillates with an angular amplitude of n-rad and a period of 0.10 s. Find the maximum angular speed of the wheel
Four moles of an ideal gas undergo a reversible isothermal expansion from volume V1 to volume V2 = 5V1 at temperature T = 400K. Find the entropy change of the gas
A 3.67 g bullet is fired vertically into a 1.61 kg block of wood. The bullet gets stuck in the block, What was the initial velocity of the bullet
A force of 2880 N is needed to bring a car moving at 20.8 m/s to a halt in 18.3 s. What is the mass of the car
The position vector of a particle of mass 2.00 kg as a function of time is given by r =(2ti+3t^2j), Determine the angular momentum (in kg-m^2/s) of the particle about the origin at t = 4 s
The engine of an aircraft propeller delivers an amount of power 177 hp to the propeller at a rotational velocity of 2390rev/min, How much torque does the aircraft engine provide
In the x-y plane, a charge of -4.6 microcoulombs is on the x-axis at the point (-30cm,0cm), calculate the magnitude and direction of the resultant electric field E at the origin (0cm,0cm)
A 34.0kg crate is initially moving with a velocity that has magnitude 3.70m/s in a direction 37.0 %u2218west of north. How much work must be done on the crate
You are moving into an apartment and take the elevator to the 6th floor. Suppose your weight is 670 N and that of your belongings is 1030 N. Determine the work done by the elevator in lifting you
A block of mass m1=3.20 kg on a frictionless plane inclined at angle 30 degrees is connected by a massless cord over a massless, Calculate the acceleration of each block
Computer hard drives are made of aluminum platters coated with a layer of magnetic material. How many such domains must a hard drive of 3 TB have (1 Byte = 8 bits)
A 1200 turn coil of wire that is 3.00 cm in diameter is in a magnetic field that drops from 0.750 T to 0 T in 15.0 ms. What is the induced emf in the coil
In our electrostatics lab, we charge a metal sphere to 1000 V. What is the electric potential due to the charged sphere at a point 1.00 cm from its surface
A wheel with c=4/9, a mass of 43.8kg, and a rim radius of 31.1cm is mounted vertically on a horizontal axis. Find the angular acceleration of the wheel
a series RLC circuit has a resistance of 500 ohms, and inductance of 20.0 mH, and a capacitance of 2.00 uF. what is the peak current in this circuit
A 1-m long pendulum with a mass of 5 kg moves at a velocity of 3 m/s at the bottom of its swing. What is the tension in the string at this point
A light meter stick is balanced at the 60 cm mark with a 200-g mass is hung from the 90 cm mark and a 100-g mass is hung from the 10 cm mark, Find the mass (in g) of the ruler