Answer:
Explanation:
Given
Force required to accelerate the object at the rate of
The weight of the object is
Mass of the object can be identified by dividing the weight by acceleration due to gravity
Answer:
The new period is 16 s
Explanation:
The period of a simple pendulum is given by
Where is the period
is the length of the string
is the acceleration due to gravity
2π is constant
For the first experiment,
Then,
....... (1)
For the second experiment
Hence,
becomes
Then,
....... (2)
Since 2π is constant and
The same pendulum is used for the second experiment, then is also constant.
∴ is constant for both experiment.
Hence, we can equate equations (1) and (2) such that
Then,
Hence, the new period is 16 s
<u>Answer:</u>
<em>Thunderbird is 995.157 meters behind the Mercedes</em>
<u>Explanation:</u>
It is given that all the cars were moving at a speed of 71 m/s when the driver of Thunderbird decided to take a pit stop and slows down for 250 m. She spent 5 seconds in the pit stop.
Here final velocity
initial velocity distance
Distance covered in the slowing down phase =
The car is in the pit stop for 5s
After restart it accelerates for 350 m to reach the earlier velocity 71 m/s
total time=
Distance covered by the Mercedes Benz during this time is given by
Distance covered by the Thunderbird during this time=
Difference between distance covered by the Mercedes and Thunderbird
=
Thus the Mercedes is 995.157 m ahead of the Thunderbird.
Answer: the answer is D
Explanation:
When we look at an object and see its color, we are seeing all of the light that reflects off of that object. Red objects reflect red light, green objects reflect green light, and so on. But what happens to the rest of the colors that hit that object? They get absorbed!
Answer:
P= IV = (0.50 A)(120 V) = 6.0x101 W R 4.
Explanation:
hope it will help