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A 0.03 kg (lead) bullethits a steel plate and melts and splatters on impact. Assuming that the bullet recieves 80% of the collision energy, at what minimium speed must it travel to melt on impact?
How is this soved without knowing what the bullet is made out of?
A 14.0-m uniform ladder weighing 510 N rests against a frictionless wall. The ladder makes a 63deg angle with the horizontal. what is the coeffecient of static friction between ladder and ground
When the Voyager I and Voyager II spacecraft were exploring the outer planets, NASA flight controllers had to plan the crafts' moves well in advance.How many seconds elapse between the time a command is sent from Earth and the time the command is ..
When a potential difference of 12V is applied to a wire 7.1m long and 0.34mm in diameter the result is an electric current of 2.2A. What is the resistivity of the wire
A rubber ball is dropped and bounces vertically from a horizontal concrete floor. If the ball has a speed of 2.9 m/s just before striking the floor and a speed of 2.0 m/s just after bouncing
Does current through a power supply increase when parallel bulbs are added? what is the current through the power source
An airplane is flying with a velocity of 240 m/s at an angle of 30.0° with the horizontal. What is the angle
The allowed energies of a simple atom are 0.0 eV, 4.0 eV, and 6.0 eV. What wavelengths appear in the atom's absorption spectrum
A 15-g sample of the candy is placed in a small aluminum container of mass 0.325 kg filled with oxygen. Determine the Calorie content of 69g of candy
A person drives a car around a circular cloverleaf with a radius of 64 m at a uniform speed of 10 m/s. What is the acceleration of the car
In particular, if a 2.000Å (.2nm) photon interacts with the bound electron in an hydrogen atom (binding energy 13.6 eV) with a Compton collision. What is the energy of the scattered photon
A convex Lens of focal length 18 cm is used as the magnifying glass. At what distance from a tiny insect should you hold this lens to get a magnification of +3.00.
A puck of mass m1 = 63g and radius r1 = 4.30 cm glides across an air table at a speed of = 1.50 m/s. It makes a glancing collision with a second puck of radius r2 = 6.00 cm and mass m2 = 115 g (initially at rest) such that their rims just touch.
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