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Capacitors C1 = 6.77 uF and C2 = 1.52 uF are charged as a parallel combination across a 212 V battery. The capacitors are disconnected from the battery and from each other. They are then connected
Bonnie and Clyde are sliding 460 {rm kg} bank safe across the floor to their getaway car. The safe slides with a constant speed if Clyde pushes from behind with 395 {rm N} of force while Bonnie pul
What should be the spring constant of a spring designed to bring a 1400 car to rest from a speed of 95 so that the occupants undergo a maximum acceleration of 5.0?
Draw free-body diagrams for when the ball is at the top of the circle and when the ball is at the bottom. Derive expressions for the tension F in the string when the ball is at the top of the circle
Take the coefficient of linear expansion for aluminum to be alpha = 2.40×10-5/rm{^{circ}C}.What is the temperature T of the Concorde's skin in flight?
State Bernoulli's principle. With the help of diagrams explain its application in the design of a carburetor and in the design of the body of an aeroplane.
Two students are on a balcony 18.3 m above the street. One student throws a ball, b1, vertically downward at 16.8 m/s. At the same instant, the other student throws a ball, b2, vertically upward at
A 1050 kg car carrying four 84 kg people travels over a rough "washboard" dirt road with corrugations 4.0 m apart which causes the car to bounce on its spring suspension. The car bounces with maxim
A box of books weighing 339 N is shoved across the floor by a force of 479 N exerted downward at an angle of 35° below the horizontal. What is the maximum coefficient of kinetic friction betwee
What is the acceleration experienced by the tip of the 2.1cm long seep second hand on your wrist watch?
A constant force of 100 n is applied to a mass of 40.0 kg. The force causes a displacement of 20.0 m to this mass along the + x axis. What is the work done by the component of the force along the +
A train 400 m long is moving on a straight track with a speed of 82.4 km/h. The engineer applies the brakes at a crossing, and later the last car passes the crossing with a speed of 16.4 km/h. Assu
A charge Q1 = -39.50 μC is fixed in place as shown in the diagram below. A second charge Q2 is attached to a massless string which makes an angle of 24° with respect to the vertical. Q2 is n
A toaster rated at 1020 W operates on a 120 V household circuit and a 4.00 m length of Nichrome wire as its heating element. The operating temperature of this element is 300°C. What is the cros
A charge moves a distance of 1.7 cm in the direction of a uniform electric field having a magnitude of 226 N/C. The electrical potential energy of the charge decreases by 14.9496 × 10-19 J as
A baseball pitcher can throw a ball with a speed of 70m/s . He is in the back of a pickup truck that is driving away from you. He throws the ball in your direction, and it floats toward you at a la
The Occupational Safety and Health Administration (OSHA) suggests a minimum coefficient of static friction of μs = 0.50 for floors. If Ethan, who has mass of 55 kg, stands passively, how much ho
A 14.0 kg box is resting on a table. You push down on the box with a force of 8.00 N. What is the magnitude of the normal force of the table on the block?
A 0.60-kg mass attached to a vertical spring of force constant 140 N/m oscillates with a maximum speed of 0.20 m/s. Find the following quantities related to the motion of the mass.Find the maximum m
During recess, Maria, who has mass 27.0 kg, hangs motionless on the monkey bars, with both hands gripping a horizontal bar. Assume her arms are vertical and evenly support her body. What is the ten
Jupiter is 23.1 m/s2. What is the ratio of your speed on Jupiter to your speed on Earth when you have dropped 45.0 m? Ignore the effects of air resistance and assume that you start at rest.
One mole of gas is initially at a pressure of 4.8 atm, volume of 0.33 L and has an internal energy equal to 53.9 J. In its final state the gas is at pressure 1 atm and volume 0.63 L, and its intern
Suppose a planet had a density that varied with radius according to the equation, ρ =A/r, where A is some constant. Determine a formula that gives the central pressure for this type of planet.
Suppose a train engineer is climbing a vertical ladder at a speed of 0.2m/s while the train is slowly coasting east at 0.70m/s. Find the vector of the engineer relative to the ground in rectangular