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An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.60 mm. Calculate the charge on each plate
A hovercraft of mass 69.0 kg can move on a horizontal surface, the x-y plane. How much work is done on the hovercraft by the force during this time
A dipole consists of charges +e and -e separated by 0.67 nm. It is in an electric field E = 2.2 × 104 N/C. What is the value of the dipole moment
an 8.00kg point mass and a 14.5kg point mass are held in place 50.0 cm apart. Find the magnitude of the acceleration of the particle
On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. What are the magnitude and direction of the velocity of the red glider after the collisio
A railroad car of mass 2.4 104 kg moving at 4.00 m/s collides and couples with two coupled railroad cars, How much kinetic energy is lost in the collision
The radius of curvature of a loop-the-loop for a roller coaster is 11.8 m. Find the speed of the roller coaster at the top of the loop
Two children with masses of 24 and 31 kg are sitting on a balanced seesaw. If the lighter child is sitting 3 m from the center, where is the heavier child sitting
Some sliding rocks approach the base of a hill with a speed of 18.0m/s. Find the acceleration of the rocks as they slide up the hill
You are holding a 5 kg dumbbell straight out at arm's length. Assuming your arm is 0.62 m long, what torque is the dumbbell exerting on your shoulder
Sean climbs a tower that is 84.7 m high to make a jump with a parachute. what is the potential energy of Sean
A variable-speed drill, initially turning at 250 rpm, speeds up to 1300 rpm in a time interval of 0.1 s. What is its average rotational acceleration
Type your quCliff and Will are carrying a uniform 2.0m board of mass 71kg. Find the normal forces exerted by Cliff and Will
An insect with many legs is scuttling across the floor. Assume that each leg pushes with the same force at exaclty the same spot. What is the insects acceleration in terms of gravity
The aorta is a major artery, rising upward from the left ventricle of the heart and curving down to carry blood to the abdomen, find the magnitude (in m/s2) of the blood's centripetal acceleration
The performers in a marching band move in straight rows, maintaining constant side-to-side spacing between them. what is the speed of the outermost marcher
Ship A is located 4.0 km north and 2.5 km east of ship B. Ship A has a velocity of 22 km/h toward the south, what is the least separation
Excellent human jumpers can leap straight up to a height of 95cm off the ground. To reach this height, with what speed would a person need to leave the ground
The current in a coil drops from 3.9 A to 2.7 A in 0.52 s. If the average emf induced in the coil is 12 mV, what is the self-inductance of the coil
Two parallel conducting plates are separated by 10.0 cm, and one of them is taken to be at zero volts. What is the voltage between the plates
A 24-V battery is connected in series with a resistor and an inductor, with R = 2.4 ? and L = 8.6 H, respectively. Find the energy stored in the inductor when the current reaches its maximum value
A particle of rest mass m0 moving with a speed of 0:8c collides and sticks to a particle of rest mass 3m0 that is initially at rest. What is the kinetic energy of the initial moving particle
A 1100-kg sports car (including the driver) crosses the rounded top of a hill (radius = 85.0 m) at 23.0 m/s. Determine the normal force exerted by the road on the car
What is the magnitude of the acceleration of a speck of clay on the edge of a potter's wheel turning at 51 rpm (revolutions per minute) if the wheel's diameter is 37 cm
a car traveling at 35m/s runs out of gas while traveling up a 9.0? slope. How far will it coast before starting to roll back down