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A glass sphere has radius R=5.0cm and index of refraction n=1.6. paperweight is constructed by slicing through the sphere along plane that is 2.0 cm from the center of the original sphere,leaving a
The spring sends the bearing to a height of 1.33 m. Calculate the horizontal distance the ball would travel if the same spring were aimed 39.0 deg from the horizontal.
An arrow is aimed horizontally at a bulls-eye 15 m away. If the initial velocity of the arrow is 128 km/hr, how far below the bulls-eye will the arrow strike?
If the ball leaves the bat with a velocity of (a) 25 m/s, vertically downward, and (b) 25 m/s, horizontally back toward the pitcher?
A 365-kg sailboat has an acceleration of 0.48 m/s2 at an angle of 37° north of east. Find the magnitude and direction of the net force that acts on the sailboat.
A straight horizontal line for a time interval of 177 ms. The ball starts from rest. Through what distance does it move before its release?
Block A sits on a table and is in thermal equilibrium with the table. The internal energy of block A is 100 J. Block B sits on the same table and is also in thermal equilibrium with the table. The
A man in a maze makes three consecutive displacements. His first displacement is 6.80 m westward, and the second is 17.0 m northward. At the end of his third displacement he is back to where he star
A flint-glass plate rests on the bottom of an aquarium tank. the plate is 8.00 cm thick(vertical) and covered with water to a depth of 12.0 cm. calculate the apparent thickness of the plate as view
While on the moon, the Apollo astronauts enjoyed the effects of a small gravity. If Neil Armstrong jumped up on the moon with an initial speed of 1.51 m/s to a height of 0.700 m, what amount of gra
It slides while being pushed by the wind with a force of 0.350 N directed along the positive y-axis. Calculate the penguin's speed at t = 7.22 s.
What is the length of the lever arm that must be used to provide a torque of 55.0 N·m with a force of 135 N?
Two stationary point charges + 3.00 nC} and + 2.00 nC} are separated by a distance of 50.0 cm. An electron is released from rest at a point midway between the two charges and moves along the line c
What are the entropy changes of the water that was originally the ice cube (b) as it melts and (c) as it warms to the equilibrium temperature?
The interior of the human body has an electrical resistivity of 0.15 ohm's*m. a) Estimate the resistance for the current flowing the length of your index finger (ignore the much higher resistivity o
What was the maximum temperature (in C)reached by the fuel and the tank on Saturday afternoon? The coefficient of volume expansion of gasoline is 9.5*10^-4 K^-1 , and the tank is made of aluminum
Maximum running speed for 5.73s more before your friend catches you. How far from the bench did you get before being caught? How long did it take for your friend to catch you?
The electron in the Bohr model of the hydrogen atom is assumed to move in a circular orbit while the proton in the electron is the sum of the kinetic energy and electric potential energy EPE. What
If the wheel is observed to accelerate at the rate of 3 rad/s2under the influence of these torques, what is the rotational inertia of the wheel?
Draw a free body diagram for one of the pith balls and clearly label all forces with magnitude and direction. Assuming the pith balls are equally charged, what is the charge on each ball?
Two spherical objects solid and solid cylinder have the same mass (m1 = m2) and the same radius (r1 = r2) rotates about its axis with angular velocity sama. Perbandingan kinetic energy between two o
Can you produce a net impulse on an automobile by sitting inside and pushing on the dashboard? Can the internal forces within a soccer ball produce an impulse on the soccer ball that will change it
The anode (positive terminal) of an X-ray tube is at a potential of +116000V with respect to the cathode (negative terminal). How much work (in joules) is done by the electric force when an electro
Determine the magnitude of F1 and F2 shown such that the resultant will be a counterclockwise couple with a moment of 220 lb-ft.
Two forces act on a point object as follows: 100N at 170.0degrees and 100N at 50.0degrees. Find their resultant?