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Two
loads of equal magnitude but of different types are fixed in a
straight line on...
3.0m- te -5.0m---- ya_19. (Sec. 12.2) Un sube y baja de 8.0m de largo y masa...
3.0m- te -5.0m---- ya_19. (Sec. 12.2) Un sube y baja de 8.0m de largo y masa uniforme esta en equilibrio estático con un soporte que está a 3.0 de su extremo izquierdo y dos niños montados en sus extremos (ver figura). El niño más pequeño esta al extremo derecho y tiene masa de 40 Kg, y el niño más grande está en el extremo izquierdo y tiene masa de 80 Kg. ¿Cuál es la masa total del sube y baja?...
Only 2 and 5 2. Three spheres of 5.00 kg each are separated by the distances...
Only 2 and 5
2. Three spheres of 5.00 kg each are separated by the
distances d1 and d2 as shown in the figure. Calculate the force of
attraction, in vectorial representation, if the distances are d1 =
0.300
-? -? m and d2 = 0.400m. Ans: ? = ?.?? × ??^-8 ?? + ?.?? ×
10^-6
5. At what altitude on the surface of the Earth, the
acceleration of gravity would have a value of 4.9 m / s2?...
Se colocan dos cargas sobre el eje x. Una de las cargas (q1 = +8.5 μC...
Se colocan dos cargas sobre el eje x. Una de las cargas (q1 = +8.5 μC ) está en el punto x= +3.0 cm y la otra (q2 = -21 μC ) está en x = 9.0 cm. Hallar el campo eléctrico resultante (magnitud y dirección) en a) x = 0 cm y b) x = +6.0 cm.
Three charged particles are placed at the corners of an equilateral triangle 6.3 m side (figure)....
Three charged particles are placed at the corners of an
equilateral triangle 6.3 m side (figure). The charges are
Q1 = 9.1 µC, Q2 = –8.5 µC and Q3 = –2.3 µC. Calculate the
magnitude of the net force on charge Q2 due to the other two.
(in milli Newton).
Tres partículas cargadas se colocan en las esquinas de un triángulo equilátero de 6.3 m de lado (figura). Las cargas son Q1= 9.1 °C, Q2= -8.5 uCy Q3= -2.3 pc....
Two particles with charges q1= 0.500 nC and q2=8.00 nC are separated by a distance of...
Two particles with charges q1= 0.500 nC and q2=8.00 nC are
separated by a distance of 1.20 m. At what point on the line
connecting the two charges does the total electric field produced
by both charges equal zero?
N u 21.44. Dos partículas con cargas qı = 0.500 nC y q2 = 8.00 nC están separadas por una distancia de 1.20 m. ¿En qué punto de la línea que conecta las dos cargas, el campo eléctrico total producido por...
Three negative electric charges, spherical and point, are on a vertical dotted line as shown in...
Three negative electric charges, spherical and point, are on a
vertical dotted line as shown in the figure. Find the magnitude in
N / C and the direction in degrees of the resulting electric field
that produces this combination of charges at point P.
Tres cargas eléctricas negativas, esféricas y puntuales, están sobre una línea punteada vertical como se muestra en la figura. Encuentre la magnitud en N/C y la dirección en grados, del campo eléctrico resultante que produce ésta...
Two masses mA 1.0 kg and m 12.0 kg are connected by a rope as shown...
Two
masses mA 1.0 kg and m 12.0 kg are connected by a rope as shown in
the figure. The coefficient of kinetic friction between each of the
masses is and the inclined plane is μk 0.25. Determine the
acceleration of the system.
Dos masas mA = 1.0 kg y m la figura. El coeficiente de fricción cinética entre cada una de las masas y el plano inclinado es με = 12.0 kg están conectadas por una cuerda según se...
A horizontal bar is used to hold an object of m kg between two walls, as...
A horizontal bar is used to hold an object of m kg between two walls, as shown in
the figure. The equally exerted forces of the bar against the walls can be changed by adjusting the length
from the bar. The system is only sustained by friction between the ends of the bar and the walls. The coefficient
Static friction between these two is ms. Find the value of the forces F that guarantee the equilibrium of the
system.
with...
Two parallel conductor rails with negligible resistance are connected at one end by a resistance resistor...
Two parallel conductor rails with negligible resistance are
connected at one end by a resistance resistor R=1.40 Ω, as shown in
the figure. The rails are placed in an upwardly directed magnetic
field B= 5.00 T , which is perpendicular to the plane of the rails.
This magnetic field is uniform and independent of time. The
distance between the rails is l= 0.20 m. A conductor bar slides
without friction on the top of the two rails at a constant...
La energía potencial entre dos átomos de una molécula diatómica puede ser modelada por el potencial...
La energía potencial entre dos átomos de una molécula
diatómica puede ser modelada por el potencial de
Lennard–Jones,
, donde r es la distancia entre los átomos. Los parámetros
U0 y x0 se determinan experimentalmente.
a) Determine la fuerza F(r) que actúa sobre un átomo, como función
de r. Haga dos gráficas, una de U(r)
contra r y una de F(r) contra r.
b) Encuentre la distancia de equilibrio entre los átomos en función
de x0. ¿Es estable el equilibrio?...
3.0m- te -5.0m---- ya_19. (Sec. 12.2) Un sube y baja de 8.0m de largo y masa uniforme esta en equilibrio estático con un soporte que está a 3.0 de su extremo izquierdo y dos niños montados en sus extremos (ver figura). El niño más pequeño esta al extremo derecho y tiene masa de 40 Kg, y el niño más grande está en el extremo izquierdo y tiene masa de 80 Kg. ¿Cuál es la masa total del sube y baja?...
Only 2 and 5
2. Three spheres of 5.00 kg each are separated by the
distances d1 and d2 as shown in the figure. Calculate the force of
attraction, in vectorial representation, if the distances are d1 =
0.300
-? -? m and d2 = 0.400m. Ans: ? = ?.?? × ??^-8 ?? + ?.?? ×
10^-6
5. At what altitude on the surface of the Earth, the
acceleration of gravity would have a value of 4.9 m / s2?...
Three charged particles are placed at the corners of an
equilateral triangle 6.3 m side (figure). The charges are
Q1 = 9.1 µC, Q2 = –8.5 µC and Q3 = –2.3 µC. Calculate the
magnitude of the net force on charge Q2 due to the other two.
(in milli Newton).
Tres partículas cargadas se colocan en las esquinas de un triángulo equilátero de 6.3 m de lado (figura). Las cargas son Q1= 9.1 °C, Q2= -8.5 uCy Q3= -2.3 pc....
Two particles with charges q1= 0.500 nC and q2=8.00 nC are
separated by a distance of 1.20 m. At what point on the line
connecting the two charges does the total electric field produced
by both charges equal zero?
N u 21.44. Dos partículas con cargas qı = 0.500 nC y q2 = 8.00 nC están separadas por una distancia de 1.20 m. ¿En qué punto de la línea que conecta las dos cargas, el campo eléctrico total producido por...
Three negative electric charges, spherical and point, are on a
vertical dotted line as shown in the figure. Find the magnitude in
N / C and the direction in degrees of the resulting electric field
that produces this combination of charges at point P.
Tres cargas eléctricas negativas, esféricas y puntuales, están sobre una línea punteada vertical como se muestra en la figura. Encuentre la magnitud en N/C y la dirección en grados, del campo eléctrico resultante que produce ésta...
Two
masses mA 1.0 kg and m 12.0 kg are connected by a rope as shown in
the figure. The coefficient of kinetic friction between each of the
masses is and the inclined plane is μk 0.25. Determine the
acceleration of the system.
Dos masas mA = 1.0 kg y m la figura. El coeficiente de fricción cinética entre cada una de las masas y el plano inclinado es με = 12.0 kg están conectadas por una cuerda según se...
A horizontal bar is used to hold an object of m kg between two walls, as shown in
the figure. The equally exerted forces of the bar against the walls can be changed by adjusting the length
from the bar. The system is only sustained by friction between the ends of the bar and the walls. The coefficient
Static friction between these two is ms. Find the value of the forces F that guarantee the equilibrium of the
system.
with...
Two parallel conductor rails with negligible resistance are
connected at one end by a resistance resistor R=1.40 Ω, as shown in
the figure. The rails are placed in an upwardly directed magnetic
field B= 5.00 T , which is perpendicular to the plane of the rails.
This magnetic field is uniform and independent of time. The
distance between the rails is l= 0.20 m. A conductor bar slides
without friction on the top of the two rails at a constant...
La energía potencial entre dos átomos de una molécula
diatómica puede ser modelada por el potencial de
Lennard–Jones,
, donde r es la distancia entre los átomos. Los parámetros
U0 y x0 se determinan experimentalmente.
a) Determine la fuerza F(r) que actúa sobre un átomo, como función
de r. Haga dos gráficas, una de U(r)
contra r y una de F(r) contra r.
b) Encuentre la distancia de equilibrio entre los átomos en función
de x0. ¿Es estable el equilibrio?...
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