Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
Ignoring any reflections of sound in the room and using 343 m/s for the speed of sound, determine the amplitude of the simple harmonic motion.
If this electron was on a dust particle with a mass of 1.0 x 10-18 kg, what would the net force (electric and gravitational)on the particle be?
A boat capable of making 10.0 km/h in still water is used to cross a river flowing at speed of 4.0 km/h. The boat is directed (from the perpendicular to the shore) in such a way that its resulting
Q1. A forceof 5.0 N moves a 6.0 kg object along a rough floor at a constant speed of 2.5 m/s. (a) How much work is done in 25 s? (b) What power is being used? (c) What force of friction is acting on t
An electron that has a horizontal initial speed of 4.50 x 106 m/s enters a region that has an electric field of 120 V/m pointing vertically upward. (a) How long does the electron take to travel 23 cm
A coconut falls out of a tree 12.0 m above the ground and hits a bystander 3.00m tall on the top of the head. It bounces back oup 1.50 m before falling to the ground. If the mass of the coconut is 2
Suppose a 30 gram piece of iron is dropped into a container of water and gives off 165 calories in cooling. Calculate the iron's temperature change.
Three equal positive charges q are at the corners of an equilateral triangle of sides a. Assume the three charges together create an electric field. Find the location of one point (other than &infin
A rock is tossed straight up with a speed of 27 m/s. When it returns, it falls into a hole 15 m deep. aPart A: What is the rock's velocity as it hits the bottom of the hole?
A ball is thrown horizontally from a high cliff with a velocity of 5 m/s. Ignoring the slowing of the ball due to air resistance (and assuming the ball is still falling), what will be the horizonta
A uniformly charged insulating rod of length 14.0 cm is bent into the shape of a semicircle. The rod has a total charge of -7.50μC. Find the magnitude and the direction of the electric field at O
A peice of wood one foot square and one inch thick has a specific gravity of .5. what volume of lead would have to be attached to the bottom of the wood so that the top of the wood would be even wit
Assuming the volume of the tyre remains constant, what is the internal temperature of the tyre at the end of the motorway run?
There are two uniform electric fields: E1 is in the positive x direction with 100 N/C, and E2 is in the positive y direction with 50 N/C. How would you draw the electric field lines for these two el
An 82 kg logger is standing on a stationary 360 kg log floating at rest in a pond. The logger begins to walk along the log which causes it to move at 0.25 m/s relative to the water. How fast is the
A 240 -V water heater has a resistance of 24 Ω. What must be the minimum rating of the fuse in the circuit to which the heater is connected?
Two beetles run across flat sand, starting at the same point. Beetle 1 runs 0.46 m due east, then 0.75 m at 31o north of due east. Beetle 2 also makes two runs; the first is 1.74 m at 34o east of du
A 0.39-kg object connected to a light spring with a force constant of 20.2 N/m oscillates on a frictionless horizontal surface. The spring is compressed 4.0 cm and released from rest. (a) Determine
The drawing shows sodium and chloride ions positioned at the corners of a cube that is part of the crystal structure of sodium chloride (common table salt).
Briefly discuss the advantages and disadvantages of pushing or pulling a vacuum cleaner or lawn mower, or assisting someone in rising from a sitting position.
Two bicyclists, starting at the same place, are riding toward the same campground by two different routes. One cyclist rides 1360 m due east and then turns due north and travels another 1430 m befo
Determine the time at which the cars pass each other, t, their speed, |v(t)|, and the distance d. Express your answers in terms of V and a. Also, compute x(t)/d, where x(t) is distance from Car A's
Find the acceleration of the bullet as it passes through the board. (Assume the forward direction is positive.)
A person walks first at a constant speed of 2.3 m/s along a straight line from Point A to Point B and then back along the line from B to A at a constant speed of 5.6 m/s. What is: (a) her average sp
Using the relations between coordinates and unit vectors in Cartesian and cylindrical coordinates, compute the velocity components in cylindrical coordinates for a general vector V = Vx i + Vy j + V