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A falling stone takes ?t = 0.26s to travel past a window2.2 m tall, From what height above the top of the window did the stone fall
If 3.15×10-4 J of work are required to move 17.7? C of charge from one point to another, what is the electric potential difference between the two points
The electric field on the surface of a 11 cm diameter sphere is perpendicular to the sphere and has a magnitude 51 kN/C. What is the electric flux through the sphere
A 226.0 kg block of ice at 0o C is placed in a large lake. The temperature of the lake is just slightly higher than 0o C, What is the entropy change of the ice
At the instant a ball rolls off a rooftop it has a horizontal velocity component +12.0m/s of and a vertical component (downward) of 10.0m/s, What is the ball's speed as it leaves the roof
4.3 moles of Hydrogen gas initially at Standard Temperature and Pressure. What is the change volume of the gas during this process
Suppose the ball is thrown from the same height as in the above problem at an angle of 36.0°below the horizontal. find the speed and angle of the velocity vector with respect to the horizontal at
Use the worked example above to help you solve this problem. A ball is thrown upward from the top of a building at an angle of 30.0° to the horizontal, How long does it take for the ball to hit
A +19nC charge is located at the origin. What is the electric field at the position (x1,y1)=(5.0cm,0cm)? Write electric field vector in component form
The nucleus of a 125Xe atom (an isotope of the element xenon with mass 125 u) is 6.0 fm in diameter. It has 54 protons and charge q =+54e. What is the electric force on a proton
You are on a team that will recover a ship from the sea. You have been given the task to perform a few calculations to move your team forward. find the tension when the body is completely out of wate
Two 4.0cm x4.0cm square aluminum electrodes, spaced 0.70mm apart are connected to a 400V battery. What is the charge on each electrode
An observer, whose eyes are 1.96 m above the ground, is standing 32.0 m away from a tree. How tall is the tree
Abolt comes loose from underneath an elevator that is moving upward at a speed of 6.1 m/s. what is the speed of the bolt when it hits the bottom of the shaft
A grasshopper jumps a horizontal distance of 1.50 m from rest, with an initial velocity at a 41.0° angle with respect to the horizontal. Find the initial speed of the grasshopper
A long jumper (as shown in the figure) leaves the ground at an angle of 17.0° to the horizontal and at a speed of 10.6 m/s. How far does he jump
The given information is that a basketball is shot from an initial height of 2.40 m with an initial speed 14m/s directed at an angle 37 degrees above the horizontal
How many radians does a point on Earth's surface move in 6 hours as a result of the Earth's rotation? What is the speed of a point on the equator
Calculate the eccentricity, e, of a planet's orbit around a central star if the ratio of its gravitational potential energies at the aphelion and at the perihelion is ? = 0.175
Point charges of 30.0 µC and 50.0 µC are placed 0.500 m apart. What is the magnitude and direction of the electric field halfway between them
A web page designer creates an animation in which a dot on a computer screen has a position of r? =[ 4.2cm +( 2.3cm/s2 )t2]i^+( 4.5cm/s )tj^
The fastest measured pitched baseball left the pitcher's hand at a speed of 42.0m/s. what acceleration did he give the ball
Two particles are fixed to an x axis: particle 1 of charge -4.18 × 10-7 C is at the origin and particle 2 of charge +4.18 × 10-7 C is at x2 = 13.9 cm. what is the magnitude of the net el
Two tiny spheres have the same mass and carry charges of the same magnitude. The mass of each sphere is 5.04 10-6 kg. Determine the charge magnitude
A "rocket car" is launched along a long straight track at t = 0 s. It moves with constant acceleration a1 = 1.2m/s2. At what time does the second car catch up with the first one