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High-speed photos of a 240 flea jumping vertically show that the jump lasts 1.4 and involves an average vertical acceleration of 100
A) What average force does the ground exert on the flea during its jump?
B) What impulse does the ground exert on the flea during its jump?
C) What's the change in the flea's momentum during its jump?
As a tennis ball is struck, it departs from the racket horizontally with a speed of 27.3 m/s. The ball hits the court at a horizontal distance of 19.3 m from the racket. How far above the court is the tennis ball when it leaves the racket?
Water flows trough a normal garden hose at 2 m/s. If a nozzle at the end of the hose reduces the cross sectional area to 5% of its original value, how fast does the water emerge from the hose nozzle
Batman throws a bat grenade at an angle of 44 degrees to the horizontal with a speed of 17.80 meters per second. How far does it travel.
A diverging lens (f = -12 cm) is located 20 cm to the left of a converging lens (f = 35.0 cm). A 3.00 cm tall object stands to the left of the diverging lens, exactly at its focal point.
A ray of light is incident on the surface of a block of clear ice at an angle of 34.0° with the normal, Find the angle between the reflected and refracted light.
IP Water flows through a horizontal tube of diameter 3.0cm that is joined to a second horizontal tube of diameter 2.0cm. Find the speed of flow in the first tube in m/s
Ball 1, with a mass of 110 and traveling at 14.0 , collides head on with ball 2, which has a mass of 320and is initially at rest. What are the final velocities of each ball if the collision is perfectly elastic? What are the final velocities of each ..
Two identical batteries, A and B, each have an emf of 1.5 V. The positive terminal of battery A is connected via a 10 cm long piece of copper wire, 0.50 mm in diameter, to one plate of a capacitor. The negative terminal is connected by an identica..
An electric current of 1 A flows through a 20 ? resistor which is kept at a constant temperature of 10° C by flowing water. In 1 s what is the entropy change of the resistor and the entropy change of the water?
At what rate does the Sun radiate energy, given that it is essentially a spherical blackbody with 6.96x10^8m, Use appropriate astronomical data to find the solar radiation per unit area at Earth's orbit
A force vector has a magnitude of 579 newtons and points at an angle 41 Degrees of below the positive x axis. What are (a) the x scalar component and (b) the y scalar component of the vector
A rock with mass m = 3.70 kg falls from rest in a viscous medium. The rock is acted on by a net constant downward force of F = 19.3 N and by a fluid resistance force.
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