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A volley-ball is spiked so that its incoming velocity of +4.0 m/s is modified to an outgoing velocity of -20 m/s. The mass of the volley-ball is 0.42 kg. Determine the impulse which does the player
Explain how long will reaction take for1/8 the reactant concentration to drop the initial value of reactions because some certain have the first-order reaction which is having a rate constant of 2.
A jogger of 85 kg is heading due to east at a speed of 2.5 m/s. A jogger of 55 kg is heading 30° north of east at a speed of 3.9 m/s. Determine the magnitude and direction of the sum of momentum
Calculate the rate constant of a first-order reaction which has 7.70 minutes for the reactant concentration to drop to half of its initial value?
Avoid the weight of the ball, as it is so much less than the force of the bat. Select the direction of the incoming ball as the positive direction.
When the rate constant of a reaction given 8.90×10-4 s-1 then determine the half-life of a first-order reaction. Explain in detail.
A golfer, driving a golf ball off the tee, provides the ball a velocity of +39 m/s. The mass of the ball is 0.045 kg, and the period of the impact with the golf club is 3.95 x 10^-3 s. (i) Determin
When the man pushes downward on the box at an angle of 30, determine the maximum mass of the box he can move?
When the plate is made from glass of refractive index n = 1.52, determine the smallest possible plate width?
Spring has the stiffness constant k = 9450 lb/ft and should be able to stop the 4000-lb car traveling at 25 mph. Determine least compression required of spring?
An air-filled parallel-plate capacitor consists of plates of area 2.1 cm2 separated by 1.11 mm. The capacitor is joined to a 26.0 V battery. Determine the charge on the capacitor?
A heat engine employing 3.5 g of helium gas is initially at STP. The gas goes through the following closed cycle: Determine how much work does the engine do per cycle?
At instant if the center of the disk has moved a distance x = 0.13 m, a length d = 0.26 m of string consists of unwound off the disk. i) At this instant, determine the speed of the center of mass of
When the speakers are out of phase then determine the smallest distance between the speakers for which the interference of the sound waves is highest constructive?
The isolated atom can emit a photon, and the atom’s internal energy drops. Is it possible that an isolated electron emit a photon? Describe why or why not.
Determine the speed at which the propellant should be expelled to make the trip from the Earth to the Moon, a distance of 3.82 x 105 km, in 6.50 hours?
The organic molecules are easily decomposed by the heat which are responsible for delicate odor of orchids so explain how could you recover the organic molecules without the use of solvents
An bullet of 8.00 g is fired to a 210 g block which is initially at rest at the edge of a table of 1.00 m height. The bullet remains in the block, and following the impact the block lands d = 2.2 m
A bullet of 7.0 g is fired to a ballistic pendulum of1.5 kg. The bullet emerges from the block having a speed of 200 m/s, and the block increases to a maximum height of 10 cm. Determine the initial
Suppose your garden has formed a large supply of corn, and you wish to preserve this corn so you can have some corn fests in the winter and you know that the garden vegetables may be contaminated wi
Through how many revolutions does the tub turn through this 23 s interval? Suppose constant angular acceleration while it is beginning and stopping.
A small moon of a big planet consists of an orbital period of around 1.78 days and the orbital radius of 4.77 x 105 km. From these data, find out the mass of the planet.
A diverging thin lens consists of a focal length of 20 cm. A virtual object is positioned on the optical axis 25 cm from the lens. Create a ray tracing diagram. (Try to sketch it carefully to scale).
A spherical concave mirror consists of a radius of 20 cm. A real object is positioned on the optical axis 15 cm from the mirror. i) Calculate where the image is and explain it (real or virtual, uprigh
In family with four children, find probability that i) all children are boys, ii) all children are same sex, and iii) there is at least one boy?