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A 0.940 kg block slides on a frictionless horizontal surface with aspeed of 1.70 m/s. The bock encounters an unstretched springwith a force constant of 260 N/m. Find the total time ofcontact with the spring before the block comes to rest.
q1. a school bus takes 0.89 h to reach the school from your house. if an average velocity of the bus is 21.1 kmh to the
An alpha particle (doubly ionized He atom ) is created in a vacuum in the center between our pair of Helmholtz coils horizontal (in the xy plane), how fast would the particle be traveling
Charge Q = 10E-8 C is placed in the origin. Location A is -3.00m from the charge while location B is 2.00m from the charge. Which point is at the higher potential
The centers of a 15kg lead ball and a 50g lead ball are separated by 10cm, What is the ratio of this gravitational force to the weight of the 50g ball
Electrons are used in a single-slit diffraction experiment. Such an experiment works well if the slit has a width of 10 times the wavelength. what is the electron energy
A parallel plate capacitor has a potential difference between the plates of 80 V. what is the electrical energy stored by this capacitor
What fraction of ice is submerged when it floats in freshwater, given the density of water at a temperature of 0 degrees celcius is very close to 1000 kilograms/meter cubed
An infinitely long cylinder, radius a, carries a current I, distributed uniformly over its cross-sectional area. The axis of the cylinder coincides with the z-axis.
If a mass m_a = 2m has intial velocity 4m/s and mass m_b = m is initially at rest, they undergo elastic collision. Calculate their final velocities after the collision
Starting from rest, a 12-cm-diameter compact disk takes 3.3s to reach its operating angular velocity of 2500rpm. How much torque is applied to the disk
Two red blood cells each have a mass of 9.05 × 10-14 kg and carry a negative charge spread uniformly over their surfaces. What is the maximum accleration of the cells as they move toward each other and just touch
If an enclosed volume of ideal has is heated, raising its temperature from 10 c to 20 c, by what factor does the pressure change
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