Question Translation:
SOLUTION :
1.
F - T = M a
=> a = (F - T) / M (ANSWER)
If M is doubled, a will be halved if F and T remain unchanged. (ANSWER).
2.
Under freefall :
____
I I
I ___ I
I
V
W = Mg
Mg = Ma
=> a = g (ANSWER)
If mass is doubled, a remains same and equal to g as relationship of a nd g is independent of M. (ANSWER)
Question Translation: On a car of mass M, two forces act as shown in the figure...
Question Translation:
On a car of mass M, two forces act as shown in the figure
above. Find an expression for the acceleration of the car in terms
of T, F, and M. What happens to the acceleration if we double the
mass of the car?
An object of mass M is in free fall (the only force on the
object is its weight). Make a force diagram for this case. Use
Newton's second law to calculate the acceleration of...
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?...
Calculate the normal force in A in the bar and pulley system
shown. In O there is a "pin". Assume that the surface at A is
smooth or smooth. The mass value of the cylinder (m1) is equal to
20 kg. Evaluate the normal force at A for values of m1 (cylinder
mass) from 10kg to 60kg at intervals of 10 (6 cases). Make a graph
of Normal vs. cylinder mass (Normal in y / Mass in x). It is...
1. (15 pts.) El átomo de Terbio-159 tiene una masa de 158.925350 u. Determine la energía de enlace/nucleón de Terbio-159. 2. (15 pts.) Un pote contiene sal yodada con cierta cantidad de Yodo-127 (isótopo estable) y otra cantidad menor de Yodo-131 (isótopo radiactivo). Suponga que hoy se mide la concentración de Yodo-131 en este pote, y se obtiene que la concentración es de 5.85 %. Determine la concentración de Yodo-131 en ese pote al cabo de 3 semanas 3. (20...
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...
A superhero (mass 80.0 kg) is
on the edge of a window, holding a rope tied to a candlestick. To
attack the villain (70kg mass) standing just below the lampstand,
he lets himself swing with the rope from the window. Assuming that
the superhero's center of mass drops H = 6.4 m during the ride and
that the superhero releases the rope just when it hits the villain.
If the average kinetic friction coefficient of their bodies with
the floor...
*
it is important to see the image for the symbols that do not appear
in the exercises*
1. For an electric field of 2. 0x10 V / m, how much is the
force of the magnetic field necessary for an electron to pass with
a speed of 2. 0x10Ⓡ m / s without deviation. Draw the directions of
v, Ē, and B for this to occur.
2. Consider that a Hubble Space Telescope detector is capable
of detecting visible...
To
transport a series of packages of roof tiles A to the roof, a
contractor uses a motorized lift truck consisting of a horizontal
BC platform that is mounted on the rails attached to the sides of a
ladder. The forklift begins its movement from rest, at first it
moves with a constant acceleration a1 as shown in the figure. Then
it decelerates at a constant rate a2 and stops at D, near the top
of the ladder. If it...
the figure shows a section of the alpine system of wagons moved
by the section of a cable. The maximum permitted mass of each wagon
with occupants is 2800 kg. The wagons, which travel on the support
cable, are pulled by a second cable from a tower. What is the
voltage difference between the two adjacent sections of the
traction cable if the wagons are accelerated upwards at a rate of
0.81 m / s2 and an inclination of 35...
In the following figure a bullet of 10 g mass moving
vertically upwards at 1000 m / s hits and crosses a 5.0 kg block
initially at rest. The bullet leaves the block moving directly
upwards at 400 m / s. How high does the block rise from its initial
position?
Energy_________
of the system is preserved.
Question 14 Complete los siguientes espacios en blanco: En la siguiente figura una bala de masa de 10 g moviéndose verticalmente hacia arriba...