7. PE=0.5×700n/m×0.9m^2
0.9^2=0.81m
0.5×700×0.81= 283.5J
8. 2000=0.5×(x)×1.5m^2
1.5^2= 0.25
0.25×0.5=0.125
2000=0.125 (x)
2000/0.125=x
x=16000 n/m
9. 4000=0.5 (375 n/m)×(x)^2
0.5×187.5 (x)
4000/187.5=21.3333333333
Answer:
Mass = 2154 grams
Explanation:
Given the following data;
Acceleration = 520m/s²
Force = 11.2N
To find the mass;
Force = mass * acceleration
Mass = force/acceleration
Substituting into the equation, we have;
Mass = 11.2/520
Mass = 2.154 kg
Therefore, the value of mass in grams;
1000 grams = 1 kilograms
x grams = 2.154 kilograms
Cross-multiplying, we have;
2.154 * 1000 = 2154 grams.
Mass = 2154 grams.
Therefore, the mass of the model rocket is equal to 2154 grams.
B. They came up with the term “radioactivity.”
C. They conducted experiments with uranium-containing minerals and pure uranium.
E. They discovered two new radioactive elements
Answer:
14 newtons is the answer
Explanation:
because if they act in the same direction they are added together
Answer:
A. Capitalist economy
Explanation:
The United States is a capitalist economy. Hope this helps, thank you !!