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How much mechanical energy is being dissipated by the force of friction while the block is being brought to rest by the spring? What is the speed of the block when it hits the spring?
In one frame the segment is displaced up 7.0 mm. In the next frame the same segment is displaced up 5.0 mm. For the following quantities, compute approximate values for the instant of time seen in
An exoplanet of mass = 5 times the mass of Jupiter and 3 Jupiter radii orbits a star identical to the sun at a distance of 3 AU from the star. Assuming the a circular orbit: estimate the orbital vel
A proton moves perpendicular to a uniform magnetic field at a speed of 1.55 x 107 m/s and experiences an acceleration of 1.75 x 1013 m/s2 in the positive x-direction when its velocity is in the posit
A gas is enclosed in a cylinder fitted with a light frictionless piston and maintained at atmospheric pressure. When 1600 kcal of heat is added to the gas, the volume is observed to increase slowly
A piece of purple plastic is charged with 8.06*10^6 extra electrons compared to its neutral state. What is its net electric charge in coulombs?
What is the total heat input per second from the fuel? If the energy content of gasoline is 35 MJ per liter, how long does one liter last?
Find the trajectory of this particle and make the plot. Also discuss the nonrelativistic limit.
How long does it take the Sun to melt a block of ice at 0C with a flat horizontal area 1.0m^2 and thickness 2.0cm ? Assume that the Sun's rays make an angle of 38 with the vertical and that the emi
A parallel-plate capacitor is designed so that the plates can be pulled apart. The capacitor is initially charged to a potential difference of 50 Volts when the plates are 1.0 mm apart.
If you disconnect the battery and separate the plates to a distance of 3.50 cm without discharging them, what will be the potential difference between them? Express your answer with the appropriate
A parallel-plate air capacitor has a capacitance of 500pF and a charge of magnitude 0.250uC on each plate. The plates are 0.700mm apart. What is the electric-field magnitude between the plates? What
For a projectile launched horizontally, which of the following best describes the vertical component of a projectile's velocity? Assume air resistance is negligible.
A Breadbox is made to move along an x-axis from x= 0.15 m to x=1.20 m by a force with a magnitude given by F(x) = e^-2x^2, with x in meters and F in Newtons. How much work is done on the breadbox b
What is potential difference across the capacitor if the spacing between the plates is 1.40mm? (answer has to be in V)
When mass M is at the position shown, it is sliding down the inclined part of a slide at a speed of 2.27 m/s. The mass stops a distance S2 = 1.9 m along the level part of the slide. The distance S1
The block compresses the spring a maximum distance of 13.00 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal surface is 0.100. What is the work don
A 32.0 kg child slides down a long slide in a playground. She starts from rest at a height h1 of 20.00 m. When she is partway down the slide, at a height h2 of 8.00 m, she is moving at a speed of 7.
The horizontal distance between the release point and the point where the decoy strikes the ground is 700 m. (Neglect air resistance.) (a) How high was the plane when the decoy was released?
Suppose you throw a 0.053-kg ball with a speed of 11.3 m/s and at an angle of 31.5° above the horizontal from a building 13.3 m high. (a) What will be its kinetic energy when it hits the ground?
If the CD rotates clockwise (let's take clockwise rotation as positive) at 500 (revolutions per minute) while the last song is playing, and then spins down to zero angular speed in 2.60 with constan
Comet orbits are highly elliptical. A periodic comet orbiting a two solar mass star with an orbital period of 200 years comes to a periastron distance of 0.7 AU. Using only Keplers third law calcula
A planar slab of thickness of 3.00 cm has a uniform volume charge density of 3.20 × 10-2 C/ m3. Find the magnitude of the electric field at all points in space both inside and outside the slab