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A 800 kg cart is rolling to the right at 3.30 m/s. A 80.0 kg man is standing on the right end of the cart. What is the speed of the cart if the man suddenly starts running to the left with a speed
A U-shaped tube, open to the air on both ends, contains mercury. Water is poured into the left arm until the water column is 14.3 deep. How far upward from its initial position does the mercury in t
Find the minimum thickness t of the oil film that will give constructive interference of reflected light with lambda = 675 nm.
What acceleration must it maintain, so that the two cars meet for the first time at the next exit, which is 2.7 km away?
Standing at a crosswalk, you hear a frequency of 540 Hz from the siren of an approaching ambulance. After the ambulance passes, the observed frequency of the siren is 430 Hz. Determine the ambulance
At a time when mining asteroids is flexible. Astronauts have connescted a line between their 3500 kg spacecraft and a 6200 kg asteroid. Using their ship's engine, they pull on the asteroid with for
A 3.00-kg mass rests on the ground. It is attached to a string which goes vertically to and over an ideal pulley. A second mass is attached to the other end of the string and released. The 3.00-kg
Determine the equation of motion of the inside cylinder using Lagrangian techniques. Find the period of small oscillations about the stable equilibrium position.
What is the angular speed of the bar the at the moment the bug jumps?
If the coefficient of friction between the block and the floor is 0.40, what is the speed of the block just before collision?
How long does it take the boat to make a round trip consisting of a 175 m displacement downstream followed by a 175 m displacement upstream?
A 168 oscillator has a speed of 102 when its displacement is 1.90 and 84.0 when its displacement is 6.10 . What the max speed of the oscillator?
Two small spheres spaced 20cm apart have equal charge. How many excess electrons must be present on each sphere if the magnitude of the force or repulsion between them is 4.57*10^-21 newtons.
A 6.1 g bullet is accelerated in a rifle barrel 86 cm long to a speed of 408 m/s. Use the work-energy theorem to find the average force exerted on the bullet while it is being accelerated.
A horizotal beam of light enters a 45-90-45 prism at the center of its long side. The emerging ray moves in a direction that is 34 degrees below the horizontal. What is the index of refraction?
The notes produced by a violin range in frequency from approximetly 196 hz to 2637 hz. find the maximim wavelength in air produced by this instrument when the speed of sound in air is 334 m/s.
Find (a) the total resistance of the circuit, (b) the total current flowing in the circuit, (c) the current flowing through the 120 ohm (R3) resistor.
A cardinal (Richmondena cardinalis) of mass 4.00×10-2 and a baseball of mass 0.143 have the same kinetic energy. What is the ratio of the cardinal's magnitude of momentum to the magnitude of
A resistor dissipates energy at a rate of 240 W when operating at 12 V. If the electrical energy costs 0.0090?kw *h, What is the cost of using the reistir for exactly 16 hours?
A 23.0 kg gold bar at 25.0°C is placed in a large, insulated 0.800 kg glass container at 15.0°C with 2.00 kg of water at 25.0°C. Calculate the final equilibrium temperature.
The mass on the incline is now displaced from equilibrium, released, and oscillates. Calculate the period of oscillation. The acceleration due to gravity is 9.8 m/s2 .
A 1200 kg car carrying four 75 kg people travels over a "washboard" dirt road with corrugations 3.8 m apart. The car bounces with maximum amplitude when its speed is 13 km/h. When the car stops, and
If the applied force remains constant in magnitude, the displacement on the spring is maximum when the applied frequency (cycles per second) is about?
A 1500 kg cartravels at constant speed of 22m/s around a circular track which has a radius of 85m. What is the magnitude of the acceleration?
What is the radius r of the turn if theta = 20.0^circ (assuming the car continues in uniform circular motion around the turn)?