Astronauts who traveled to the moon were able to float slightly as they walked along its surface. Why were the astronauts able t
2 answers:
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Answer:
the net force on the object is 6 N.
Explanation:
Given;
force applied to the right on the object, = 16 N
force applied to the left of the object, = 16 N
force applied downward on the object, = 6 N
The net horizontal force on the object =
The net vertical force on the object =
The net force on the object is calculated as;
Therefore, the net force on the object is 6 N.
Answer:
v= 3.18 m/s
Explanation:
Given that
m= 150 g = 0.15 kg
M= 240 g = 0.24 kg
Angular speed ,ω = 150 rpm
The speed in rad/s
ω = 15.7 rad/s
The distance of center of mass from 150 g
r= 20.30 cm
The speed of the mass 150 g
v= ω r
v= 20.30 x 15.7 cm/s
v= 318.71 cm/s
v= 3.18 m/s
Answer
Given,
Energy absorbed,
Energy expels,
Temperature of cold reservoir, T = 27°C
a) Efficiency of engine
b) Work done by the engine
c) Power output
t = 0.296 s
Answer:
(i) v = 44 m/s
(ii) a = 72 m/s^2
Explanation:
You have the following equation for the potion of a car:
(i) The instantaneous velocity is the derivative of x in time:
for t = 1 is:
(ii) The instantaneous acceleration is the derivative of the velocity:
for t = 1