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A 250 g block is attached to a horizontal spring and executes simple harmonic motion with a period of 0.250 s. If the total energy of the system is 4.00 J.
A 100 g aluminum calorimeter contains 250 g of water. The two substances are in thermal equilibrium at 10°C. Two metallic blocks are placed in the water. Determine the specific heat of the unknown second sample
A nuclear power plant has a reactor that produces heat at the rate of 838MW. this heat is used to produce 253MW of mechanical power to drive an electrical generator. a) at what rate is heat discarded to the environment by this power plant? b) what..
Two point charges q = 74.0 nC and q = -74.0 nC are in vacuum located on the x axis at -30.0 cm and 30.0 cm, calculate the total electric flux through the y-z plane
question1at one instant a bicyclist is 40.0 m due east of a parks flagpole going due south with a speed of 10.0 ms.
On its highest power setting, a microwave oven increases the temperature of 0.390 kg of spaghetti by 45.0°C in 150 s. What is its peak magnetic field strength
Light is incident on a slit 0.750 mm wide. On a screen 2.00 m away, the distance from the central maximum to the first minimum is 1.35 mm. compute the wavelength of the light.
a mass is hanging from a spring. consider this position the zero point. it is in equilibrium at this position. by
A particle undergoes a displacement Δr of magnitude 57 m in a direction 25° below the x axis. Express Δr in terms of the unit vectors x and y.
Pulsed lasers used in science and medicine produce very short bursts of electromagnetic energy. If the laser light wavelength is 1062 nm, How many wavelengths are found within the laser pulse
A stone is shown at rest on ground. at. The vector shows the weight of the stone. Complete vector diagram showng another tha results in zero net force on the stone. b. What is the conventional name of the vector you have drawn.
A spring with a spring constant of 224.8 N/m is compressed by 0.229 m. What is the speed of the ball bearing right after it loses contact with the spring
A 7.9-m long string is moved up and down with simple harmonic motion with a frequency of 91 Hz. Determine the velocity of the wave on the sting
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