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A bullet of mass 10 g is fired with an initial speed of 281 m/s into a wooden block The bullet becomes lodged in the block, and the two slide together on the floor for a distance of 1.2 m before com
A calorimeter contains 23.0 of water at 11.5. When 1.40 of (a substance with a molar mass of 62.0 ) is added, it dissolves via the reaction and the temperature of the solution increases to 30.0.
Which are the spectator ions from the following complete ionic equation:
A 800-N crate is being pushed across a level floor at a constant speed by a force vector F of 310 N at an angle of 20.0° below the horizontal, as shown in the figure below. What is the coefficie
A 5.2 g bullet leaves the muzzle of a rifle with a speed of 308 m/s. What force (assumed constant) is exerted on the bullet while it is traveling down the 0.75 m long barrel of the rifle?
what are the (a) magnitude and (b) direction of the displacement, the (c) magnitude and (d) direction of the average velocity, and the (e) magnitude and (f) direction of the average acceleration? (G
The density of Hexane is 0.659 g/mL. What is the mass of hexane in 25.9 mL?
Express your answer in condensed form in order of increasing orbital energy as a string without blank space between orbitals.
if 56 ml of HSiCl3 (d=1.34 g/mL) is isolated when 15.0L of HCl at atm and 35 degrees celciusis used, what is the percent yield of HSiCl3?
A balloon filled with helium has a volume of 2.41 L on a warm day at 311 K. It is brought into an air-conditioned room where the temperature is 295 K. What is its new volume?
125 mL of H2O is initially at room temperature 22.0 degrees C. A chilled steel rod at 2.0 degrees C is placed in the water. If the final temperature of the system is 21.5 degrees C, what is the mass
Two stationary positive point charges, charge 1 of magnitude 3.50 nC and charge 2 of magnitude 2.00 nC, are separated by a distance of 48.0 cm. An electron is released from rest at the point midway
A 69.0 kg person, standing on a diving board, dives straight down into the water. Just before striking the water, her speed is 5.20 m/s. At a time of 1.65 s after she enters the water, her speed is
What is the maximum speed of the electron? What is the amplitude of the electron's position?
Take the mass of the sun to be = 1.99×1030 , the gravitational constant to be = 6.67×10-11 , and the acceleration due to gravity at the earth's surface to be = 9.810 .
If the loop is placed in a uniform magnetic field of magnitude 0.400 T, what is the maximum torque that can act on it? The resistivity of copper is 1.7 10-8 · m.
Your roommate is working on his bicycle and has the bike upside down. He spins the 62.0 -diameter wheel, and you notice that a pebble stuck in the tread goes by three times every second. What is the
If the coefficient of friction between road and tires on a rainy day is 0.100, what is the minimum distance in which the car will stop?
A car engine is initially rotating at 185 rad/s. It is then turned off and takes 2.40 s to come to a complete stop. What is the angular acceleration of the engine? Assume acceleration is constant.
The current in a solenoid with 22 turns per centimeter is 0.50 . The solenoid has a radius of 1.6 . A long, straight wire runs along the axis of the solenoid, carrying a current of 15. Find the magn
Two blocks of masses m1=1kg and m2=2kg are connected by a massless cord passing over a massless, frictionless pulley. The pulley is pulled up with a force F=50 N. What is the accelerations of the tw
A hotel elevator ascends 170 m with a maximum speed of 5.0 m/s. Its acceleration and deceleration both have a magnitude of 1.0 m/s2. (a) How far does the elevator move while accelerating to full spe
A 65 kg boy and girl use an elastic rope while engaged in a tug of war on an icy, frictionless surface. If the acceleration of the girl toward the boy is 3.0 m/s2, find the magnitude of the accelera
A particle with charge travels in a circular orbit with radius 4.68 due to the force exerted on it by a magnetic field with magnitude 1.65 and perpendicular to the orbit. What is the magnitude of th