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A helium nucleus has radius rHe = 1.9 fm, mass m = 6.6 × 10-27 kg, and charge +2e. A gold nucleus has charge +87e and radius rAu = 7.0 fm. What initial speed must a helium nucleus have if it is to come into contact with a fixed gold nucleus in a head on collision.
If the lamp's 215 W output is focused on a person's shoulder, over a circular area 25.0 cm in diameter, Find the peak magnetic field strength
When a high-power laser is used in the Earth's atmosphere, the electric field associated with the laser beam can ionize the air, turning it into a conducting plasma that reflects the laser light.
An engine absorbs 1.67 kJ from a hot reservoir at 277°C and expels 1.18 kJ to a cold reservoir at 27°C in each cycle, How much work is done by the engine in each cycle
A 58 g tennis ball is served at 40 m/s. Find the de Broglie wavelength of the tennis ball
Runner A is initially 4.8 km west of a flagpole and is running with a constant velocity of 4.2 km/h due east. Runner B is initially 4.0 km east of the flagpole and is running with a constant velocity of 5.2 km/h due west. What will be the distance of..
Consider a spider walking from the top of a (stationary) beach ball. (Let that angular position = 0O.), At what angle does this slipping begin
A bobsled slides down an ice track starting (at zero initial speed)from the top of a (n) 199 m high hill. The acceleration ofgravity is 9.8 m/s2. Neglect friction and air resistance and determine the bobsled's speed at the bottom of the hill.
question1an artillery shell is fired with an initial velocity of 310 ms at 57.0deg above the horizontal. it explodes on
A rocket, away from all gravitational forces, accelerates upward at an acceleration of 12.8m/s^2. On its main deck is a crate with a mass of 81.6kg. a) How many forces act on the crate? b) Determine the Normal force on the crate, & c) What would the ..
A snake is sunning itself on a rock. If the snake is 0.4 m long, what is the approximate amount of radiation it absorbs from the Sun in 15 min, Estimate the temperature in the Sun on the rock
53.53 J of heat are removed from a gas sample while it is being compressed by a piston that does 52.01 J of work. What is the change in internal energy of the gas
0.5m side wooden cube floats on the lake surface with 2/3 of the cube submerged under the water. calculate the minimum work down on the cube that would sink it?
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