Answer:

Explanation:
Given that,
A car accelerates negatively from 35m/s to 8m/s in 8s.
We need to find the car's acceleration.
Initial speed, u = 35 m/s
Final speed, v = 8 m/s
Time, t = 8 s
The acceleration of an object is equal to the rate of change of velocity. So,

Put all the values,

So, the acceleration of the car is equal to
.
Atomic Mass = 140.1 amu
Element= Ce (Cerium)
Answer:
C) 66 calories
Explanation:
The Heat energy required to flow into a unit mass object to raise its temperature by 1 degree is known as specific heat capacity.
specific heat capacity of aluminum, c = 0.22 cal/g°C
mass of aluminium, m = 20.0 g
Answer:
C
Explanation:
Because a compound is TWO or MORE atoms combined together and in C there are two different atoms in answer choice C