Answer:
(a) It will take 12.82 sec to come into rest
(b) After calculation distance is 737.15 m which is less than 800 m so jet can land on the island
Explanation:
(a) When the jet lands at the ground its velocity is 115 m/sec
So initial velocity u = 0 m/sec
Finally jet will stop so its final velocity will be zero v = 0 m/sec
Maximum acceleration
So minimum time,
So
t = 12.82 sec
(b) Average speed
Distance traveled in 12.82 sec =
As this distance is less than 800 m so jet can land on the island
The effective spring constant of the system is 39.6 N/m
Explanation:
The frequency of oscillation of a spring-mass system is given by
where
k is the spring constant of the system
m is the mass
In this problem, we have:
f = 29 Hz is the frequency of vibration of the eyeball system
m = 7.5 g = 0.0075 kg is the mass
We can therefore re-arrange the equation to find the effective spring constant of the system. We find:
#LearnwithBrainly
a) Gravitational force only
b) Normal force only
c) Gravitational force, normal force, and frictional force
d) Gravitational force and normal force
Answer:
There will be 2 beta particles released in the decay
Explanation:
See the image below
Answer:
Velocity: The rate of change of displacement of an object (displacement over elapsed time) is velocity. Velocity is a vector since it has both magnitude (called speed) and direction. For example, if you drive 10 miles North in 0.25 hours (15 minutes), your velocity is 10 miles/0.25 hours = 40 mph in the northerly direction. For further explanation of vectors click here.
Acceleration: The rate of change of velocity is acceleration. Like velocity, acceleration is a vector and has both magnitude and direction. For example, a car in straight-line motion is said to have forward (positive) acceleration if it is speeding up and rearward (negative) acceleration if it is slowing down. We sometimes refer to negative acceleration as deceleration.