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A 0.25kg object is tied to a 0.4m rope and swung around a central point at a tangential velocity of 2.0m/s. What is the net force acting on the object?
Show transcribed image text Pictured on the right are two point charges Q1 = -80.0 x 10 C and Q 30.0 x 10^-6 C separated by a distance D = 0.100 m, as shown.
In a student experiment, a constant-volume gas thermometer is calibrated in liquid nitrogen (?196°C ) and in boiling pentane (36.1°C). The separate pressures are 0.349 atm and 1.442 atm. Hint: Use the linear relationship P = A + BT, where A and B ..
A 22 kg brick is completely submerged insaltwater and displaces an amount of saltwater weighing 11.7 N. Determine the buoyant force on the brick
A bullet of mass 5.9 g is fired horizontally into a 3.8 kg wooden block at rest on a horizontal surface. What is the speed of the block immediately after the bullet stops relative to it? At what speed is the bullet fired?
A violin string of length 35 cm and mass 1.1 g has a frequency of 478 Hz when it is vibrating in its fundamental mode. What is the wavelength of the standing wave on the string
Consider a variant of problem where any package with at least one imperfection (a crease, a hole, a smudge, or a broken seal) is considered to be nonconforming.
A 12.6kg runaway grocery cart runs into a spring with spring constant 230N/m and compresses it by 68.1cm. What was the speed of the cart just before it hit the spring
Is the magnetic field created by a current loop uniform? Explain. Does a wire connected to the terminals of abattery emit electromagnetic waves? Explain.
Electric power is transferred over large distance sat very high voltages. Describe how the high voltage reduces power losses in the transmission lines
How to create a condition of weightlessness inside aircraft
A bob of mass m is suspended from a string of length L, forming a pendulum. The period of this pendulum is3.5 s. If the pendulum bob is replacedwith one of mass 1/3m and the length of the pendulum is increasedto 2L, what is the period of oscillation?
(a) What is the acceleration of the car? (Express direction in terms of the direction of motion of the car)
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