10.92N
Explanation:
Given parameters:
Mass of the truck = 2.964kg
velocity = 7m/s
Time = 1.9s
Unknown;
Average force on the car = ?
Solution:
The force acting on the car is a function of its mass and acceleration according the newton's second law of motion.
Force = mass x acceleration
Since acceleration = 
Force = mass x
Force = 
= 10.92N
learn more:
Newton's laws brainly.com/question/11411375
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Answer:
25g
Explanation:
Given parameters:
Half life of X = 5days
Mass of sample of radioactive elements = 100g
The half-life of a radioactive material is the time it takes for a sample to decay by half. At the half-life, an original sample would have yielded equal daughter to parent ratio.
At time (days) Mass of sample
0 100g
5 50g
10 25g
Every 5 days, the sample will split into half.
Therefore, 25g will remain after 10days.
Answer:
B AND D
HOPE ITS HELF FUL .........
The deceleration of the car is observed as 2 m/s^2.
<h3>What is deceleration?</h3>
The term deceleration has to do with the decrease of velocity with time.
Given that;
v = 65 km/h or 18 m/s
u = 126 km/h to or 35 m/s
t = 8.5 s
a = ?
v = u - at
18 - 35 = -8.5a
a = 18 - 35/-8.5
a = 2 m/s^2
Learn ore about deceleration:brainly.com/question/4403243?
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Answer:
e. All of these statements are false.
Explanation:
As we know that heat transfer take place from high temperature to low temperature.
It is possible to convert all work into heat but it is not possible to convert all heat in to work some heat will be reject to the surrounding.
The first law of thermodynamics is the energy conservation law.
Second law of thermodynamics states that it is impossible to construct a device which convert all energy into work without rejecting the heat to the surrounding.
By using heat pump ,heat can transfer from cooler body to the hotter body.
Therefore all the answer is False.
