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What is the angular momentum of the system before the clay strikes the cylinder (give both magnitude and direction)?
Suppose 3.0 cubic meter of oil is spilled into the ocean. Find the area of the resulting slick, assuming that it is one molecule thick, and that each molecule occupies a cube 0.50 on a side.
Sam (61 kg) takes off up a 50-m-high, 9°slope on his jet-powered skis. The skis have a thrust of 180 N. Sam's speed at the bottom is 44.0 m/s. What is the coefficient of kinetic friction of his
The position of a particle moving under uniform acceleration is some function of time and the acceleration. Suppose we write this position s $ ka mt n, where k is a dimensionless constant. Show by
Two long, parallel wires, each having a mass per unit length of 40.0 g/m, are supported in a horizontal plane by strings 6.00 cm long. When both wires carry the same current I, the wires repel each
110 grams of boiling water (temperature 100° C, heat capacity 4.2 J/gram/K) are poured into an aluminum pan whose mass is 800 grams and initial temperature 22° C (the heat capacity of alumin
A hot-air balloon is rising upward with a constant speed of 2.60 m/s. When the balloon is 3.50 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much
A vertical container with base area measuring 16 cm by 18 cm is being filled with identical pieces of candy, each with a volume of 50.0 mm3 and a mass of 0.0200 g. Assume that the volume of the emp
The 200.g head of a golf club moves at 40 m/s in a circular ARC of 1.2 m radius. How much force must the player exert on the handle of the club to prevent it from flying out of her hands at the bott
Let us use the uncertainty principle to (very roughly) estimate the size of a hydro- gen atom. Picture the hydrogen atom as an electron orbiting a proton at close to the speed of light. The uncertai
The effective coefficient of kinetic friction is 0.40. Calculate the force exerted by the man .Give your answer in Newtons, do not enter units.
A charge of -3.00 nC and a charge of -5.80 nC are seperated by a distance of 50.0 cm. Find the position at which a third charge of +7.50 nC can be placed so that the net electrostatic force on it i
A block of mass mblock = 2 kg rests on a cart of mass mcart = 3.6 kg, which moves without friction on a horizontal surface. The coefficient of static friction between the block and the cart is &mic
A mass-spring system oscillates with an amplitude of 3.30 cm. If the spring constant is 226 N/m and the mass is 448 g, determine the mechanical energy of the system.`
When a 9-V battery is temporarily short-circuited, a 200-mA current flows. What is the internal resistance of the battery?
=A banked circular highway curve is designed for traffic moving at 62 km/h. The radius of the curve is 217 m. Traffic is moving along the highway at 42 km/h on a rainy day. What is the minimum coef
In this case, about how many minutes would it take for a single electron in the electron sea to drift from one end to the other end of a wire 27 cm long?
An ocean liner leaves New York City and travels 13.0° north of east for 258 km. How far east and how far north has it gone? In other words, what are the magnitudes of the components of the ship
A particle with a mass of 4.1 × 10-20 kg is oscillating with simple harmonic motion with a period of 2.9 × 10-5 s and a maximum speed of 2.3 × 103 m/s. Calculate (a) the angular f
A parallel-plate air-filled capacitor having area 64 cm2 and plate spacing 1.0 mm is charged to a potential difference of 450 V. Find the electric field?
Find the magnitude of the displacement of a point on a wheel initially in contact with the ground when the wheel (of radius 53.7 cm) rolls forward half a revolution.
A woman throws a cricket ball vertically upwards into the air. The ball leaves the woman's hand 1.8 m above the ground, with a speed of 9.7 m s-1. It rises and then falls back to the ground. By con
Calculate the rotational kinetic energy for the following objects spinning about a central axis (in units of Joules): (Hint: the answers to question 2 may help here)
on rough horizontals surface two horizontal forces act on a 50.0 k. one force is 230.0 N(E)while the other is 380.0 N (s). There is also 220 N of ffriction acting. what is the net force acting on th
Describe the basic idea of the particle-Mesh method to advance the solution of a system of particles under mutual gravitational forces. How do you obtain the forces exerted on a given particle by t