Answer:
<h3>The answer is 53.27 mi/hr</h3>
Explanation:
To find the velocity covered by the car we use the formula
where
d is the distance
t is the time
From the question
d = 554 miles
t = 10.4 hrs
We have
We have the final answer as
<h3>53.27 mi/hr</h3>
Hope this helps you
Acceleration is the result when the difference in final and initial speed is divided by time. From the given, the acceleration from 3:00 to 4:30 pm is calculated through the steps below,
acceleration = (40mph - 80 mph) / 1.5 h
-26.67 mi/h²
Thus, the answer is letter B.
Hi,
Answer: D) The Sun
<u>My work:</u> The Sun is needed for living organisms such as; plants, animals, and human beings there selves, but not because it forms organic matter with the help of carbon dioxide and water, but because it gives us warmth and energy to suck in.
I Hope I Helped!
Answer: There will be 75258 nuclei left at 6 pm.
Explanation:
a) half-life of the radioactive substance:
Half life is the amount of time taken by a radioactive material to decay to half of its original value.
b) Expression for rate law for first order kinetics is given by:
where,
k = rate constant
t = time for decomposition = 6 hours ( from 12 noon to 6 pm)
A = activity at time t = ?
= initial activity = 600, 000
Thus there will be 75258 nuclei left at 6 pm.
Answer:
a third class lever
Explanation:
The third class or interpower lever is a lever that enables fast and dynamic movements. It places the power between the resistance and the support, so the resistance arm is longer than the power.
It is the most frequent type of lever in the human body and as an example we can put the action of the brachial biceps in the flexion of the elbow, where the biceps is inserted in the forearm between the elbow that is behind and the resistance that would be displaced towards the hand by the weight of the load attached to the weight of the forearm.
A good range of movements is achieved although with less force and is the most frequent type of lever in human movement, although the same joint can form different types of lever depending on the type of movement performed
.