In Figure 4.24, a current of 0.3 A flows through the conductor CD, and a charge of 4C passes through a cross-section AB of the
2 answers:
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#1
Jill and Scott both moves for 30 minutes
now if Jill cover 5 km distance and Scott cover 10 km distance
now we know that the formula of speed is given as
now we will have
speed of Jill
speed of Scott
so correct answer here is
<em>Scott had the faster speed since he rode at 20 k/h while Jill only traveled 10 km/h.</em>
<em>#2</em>
distance travelled by each car is given as
now here it is given that
time taken by green car
time taken by yellow car
now we can find the speed of two cars
speed of green car
speed of yellow car
so correct answer will be
<em>The yellow car was faster. Yellow traveled at a speed of 50 mph while green was traveling at an average of 40 mph.</em>
Answer:
5365 N
Explanation:
v = Final velocity = 23 m/s
u = Initial velocity = -14 m/s (opposite direction)
m = Mass of ball = 145 g
t = Time taken = 1 ms
Impulse is given by
Impulse is also given by
The magnitude of the average force exerted by the bat on the ball is 5365 N