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On an ice rink, a 3 kg object initially moving a speed of 5 m/s, strikes a 6 kg object initially at rest. Afterwards, the first object moves off with a speed of 2.75 m/s in a direction 80 degreesfrom its original direction of motion.
a) what is the velocity of the second object after the collision?
b) what is the change inenergy during the collision?
An airtight box having a lid with an area of 14.0in2 ( 90.32cm2 ) is partially evacuated. what is the air pressure in the box
An asteroid of mass 2.3×10^5kg , traveling at a speed of 21km/s relative to the Earth, hits the Earth at the equator tangentially, estimate the percent change in the angular speed of the Earth
A missile is fired from a launcher with an initial velocity of 250 m/s at a target located 500 m above the launcher, determine The possible firing angles required to hit the target
A fire hose must be able to shoot a stream of water a specified height, straight up. Calculate the gauge pressure (difference between actual pressure
A 20-cm diameter circular saw blade has a mass of 0.79kg, distributed uniformly as in a disk. What is its rotational kinetic energy at 4400 rpm
A motorist pulls into a gas station and uses a pressure gauge to check one of the tires on her car. What is the absolute pressure of the air in the tire
A nonuniform linear charge distribution given by?=bx, wherebis a constant, is located along anxaxis fromx= 0 tox=0.35m. Suppose thatb=30nC/m2andV= 0 at infinity. What is the electric potential at the origin
Solid argon has a density of 1650 kg/m cubed. The atomic weight of argon is 40. Assuming each atom occupies a cubical volume, what is the distance bewteen the argon atoms
discussion topic 11.discuss how differentiation and integration theorems simplify analysis of time-based
If the balls are released from a height where the bottom of the basketball is at 0.781m above the ground, what is the absolute value of basketball's momentum just before it hits the ground.
The critical density of the universe is 5.80×10^?27 kg/m^3. Assuming that the universe is all hydrogen, express the critical density in the number of H atoms per cubic meter.
A ray of light passing through water struck the water glass interface making an angle 50 with the interface. find the angle of refraction of the light in glass
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