Answer:
Explanation:
We shall apply concept of impulse to solve the problem .
Impulse = force x time
impulse = change in momentum
force x time = change in momentum
initial speed u = 24 km/h = 6.67 m /s
final speed v = 65 km/h = 18.05 m /s
change in momentum = m v - mu
= m ( v-u )
= 1350 ( 18.05 - 6.67 )
= 15363 kg m/s
F x 18 = 15363
F = 853.5 N .
Answer:
Explanation:
M = 1.989 x 10^30 kg
R = 6.96 x 10^8 m
G = 6.67 x 10^-11 Nm²/kg²
Let the velocity is v.
v = 6.17 x 10^5 m/s
Answer:
true
Explanation:
1. Stance
2. Nock
3. Set Draw Hand
4. Set Bow Hand
5. Pre-Draw
6. Draw
7. Anchor
8. Aim
9. Shot Set Up
10. Release
11. Follow-Through & Reflect
A. Cause and effect.
Explanation:
An experiment can prove cause and effect in a study unlike observational studies.
- Observational studies is a non-experimental system of investigation.
- It helps to identify the causes(independent variable) and the effect(dependent variables).
- In observational studies, the variables cannot be controlled and so it is difficult to prove the cause and effect.
- An experiment can prove cause and effect because the parameters are tested and can be controlled.
Learn more:
Experiment brainly.com/question/5096428
#learnwithBrainly
