Answer:
<h2> 0.041kg</h2>
Explanation:
Step one:
given data
initial velocity u= 0m/s
Force F= 443N
time t= 4.3 ms= 0.0043seconds
final velocity v= 45.7m/s
Step two:
Required
mass m
we know that the expression for impulse is given as
Ft=mv
make m subject of the formula
m=Ft/v
substitute we have
m=443*0.0043/45.7
m=1.90/45.7
m=0.04kg
The mass of the ball is 0.041kg
Julia walks from the park, which is six blocks east of her house, to the store, which is three blocks east of her house. Julia walks for 5 minutes. This walk's average speed will be 1.2 blocks per minute. Option B is correct.
<h3>What is displacement?</h3>
Displacement is defined as the shortest distance between the two points. Distance is the horizontal length covered by the body. While displacement is the shortest distance between the two points.
Displacement is a vector quantity .its unit is m.
The average velocity on this walk will be;

Hence option B is correct.
To learn more about displacement refer to the link; brainly.com/question/10919017
#SPJ1
Answer:
1.)The bob of pendulum should be displaced with a small angle.
2) The amplitude of the oscillation of a simple pendulum should be small.
3) Fans should be switched off to reduce the air resistance.
4)The simple pendulum should be oscillate in a vertical plane
Hope this helped you
Answer:
A = 62.5 g
using half life formulas, plug in missing variables.
Explanation:
It's Muscular Force friend
hope it helps you
please mark it as brainlist