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String B has a diameter of 1.0 mm and is under a tension of 820.0 N. Find the ratio of the wave speeds, vA/vB, in these two strings.
An auto with an initial velocity of 7.0 m/s accelerates at 0.71 m/s^2. It travels a distance of 1.0 km while accelerating.
Water drips from the nozzle of a shower onto the floor 200 cm below. The drops fall at regular intervals of time, the first drop striking the floor.
A 50 g ball of puty moving with a velocity of 3.0 m/s has an inelastic collision head on with a stationary mass of 50 g and sticks to it.
The artery is 2/3 blocked. The normal speed is 0.40 m/s and blood density is 1060 kg/m^3. Find the velocity of the blood at the blocked area.
A 3 kg bowling ball traveling with a velocity of 3 m/s collides head-on with another bowling ball of the same mass traveling with a velocity.
A 300 g baseball traveling at 30m/s is struck by a bat in the direction from which it came at 40 m/s. find the impulse of the force on the baseball.
Find the total energy of the system at the given instant if the 20 kg disc has an angular velocity of 24 rad/s (clockwise), the bar AB.
A particle of mass m is constrained to move on a circle of radius R. This circle also rotates in space about a fixed point (P) on the circumference
For Ionizing Radiation, Nonionizing Radiation, and Filtration, describe the following:
Without the wheels, a bicycle frame has a mass of 8.13 kg. Each of the wheels can be roughly modeled as a uniform solid disk.
Discuss the public health effects that may result in a community exposed to noise produced by a nightclub.
A Boy scout name d Dexter goes for a hike; he walked 9 km north 3 km east 11 km north and 15 km west. Find resultant displacement for Dexter's hike.
What are the differences between alpha particles, beta particles, and gamma rays?
A thin, 80.0gm disk with a diameter of 9.00cm rotates about an axis through its center with 0.220J of kinetic energy.
According to the NFPA 59A standard: "Provisions shall be made as follows to minimize the possibility of damaging effects of fire reaching beyond a property line
The supply of uranium in the United States (and the rest of the world) is large, but not limitless.
If a planet has a mass of 9.42 x 1024 kg and a radius of 5.47 x 106 meters, to the nearest m/s what is its escape velocity?
Efforts are underway to produce energy commerically by fusion. It is too difficult to produce helium by fusion of protons, as is done in the sun
Find the final angular velocity of the system if the runner comes to rest relative to the turntable.
A hockey puck is hit on a frozen lake and starts moving with a velocity of 11.5 m/s. After 7.45 seconds, its velocity is 5.67 m/s.
An electron drops from the L shell to the K shell and gives off an X-ray with a wavelength of 0.0205 nm. What is the atomic number of this atom?
The half-life of a first-order reaction is 13 min. If the initial concentration of reactant is 0.085 M, it takes _____ min for it to decrease to 0.055 M.
The ball's velocity was 1.5m/s before the collision, but after the collision it is 1.2m/s. What is the velocity of the pin just after the collision?
Lee Mealone, a hermit pushes a 16 kg boulder into the wall of his cave at a speed of 4.5 m/s, the boulder is brought to a stop in 2.3 seconds.