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A bat hits a ball 0.050kg producing a path at its speed of +30 m/s in 0.10s. the average force exerted by the bat is?
Two pieces of clay of equal mass move with equal speed but in the opposite direction on a frictionless surface if both collide head-on what happends?
A block of 10 kg is raised 5 m by a rope. the increase in its potential energy is?
A box slides down there is no friction generating 50 j of kinetic energy. the gravitational potential energy you lost is?
A resole with a force of k = 300n / m is compressed 9 cm. The potential energy in the spring will be?
the note middle c on a piano has a frequency of 512 hz in the fundamental tone. suppose that the string that produces
A 5.7 kg quantity of water is held at constant volume in a pressure cooker and heated with a range element. The systems internal energy increases by 37x10^3 J. But, the pressure cooker is not well insulated, and 6x10^3 J of energy is transferred to t..
A sample of an ideal gas is at a temperature of 307 K. The rms molecular speed at this temperature is measured as 2767 m/s. Calculate the average molecular kinetic energy of this sample
You have 2 capacitors plus 1 resistor all hooked up in series. The value of R= 15 ohms and C1=C2= 1uf. Find the time constant T(tau)=RC
A point charge of +300 nC is present at the center. What is the radial component of the electric field at a point that is 0.60 m from the center?
The EEG. Physicians use electroencephalograms (EEGs) to study electrical oscillations in the human brain. What's the corresponding range in periods
A projectile is launched with a speed of 40 m/s at an angle of 60o above the horizontal. Use conservation of energy to obtain maximum height reached by projectile during flight
A satellite is in an elliptical orbit at altitudes ranging from310 to 890 km. Atthe high point it's moving at 7.33 km/s.How fast is it moving at the low point?
The drawing shows four point charges. The value of q is3.1 μC, and the distance d is 0.89 m. Find the total potential at the location P. Assume that the potential of a point charge is zero at infinity.
The electric field at a distance of 0.136m from the surface of a solid insulating sphere with radius 0.352m is 1680N/C. Calculate the electric field inside the sphere at a distance of 0.222 m from the center
During each cycle, a refrigerator ejects 680 kJ of energy to a high-temperature reservoir, and takes in 600 kJ of energy from a low-temperature reservoir. Determine the work done on the refrigerant in each cycle. Determine the coefficient of performa..
Two concentric shells of uniform density having masses M1 and M2are situated. Discover the force on a particle of mass m when the particle is located at (a) r = a, note speed of propagation of gravitation in Newtonian physics. (b) r = b, and (c) r = ..
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