Answer:
true
Explanation:
it all depends on the elements that are burning for the different types of colors.
Answer:
The angle other than 90 degrees would result in magnetic flux of non zero magnitude.
Explanation:
The magnetic flux through a given closed area is equal to 
.
Where 
is the magnitude of magnetic flux through loop .
is the area vector of the given loop .
We know that = 
,
Where 
is the angle made by magnetic field with area vector.
Area vector of a closed loop is always normal to the plane of the loop .
So from above equation we can deduce that
is the magnitude of magnetic flux which is non zero when not equal to 90 degrees.
Well, there's no jet that can travel at that speed ... 14.75 km/s is like 33,000 miles per hour ! But I'll just take the numbers that are there, and work it out just the way the question says.
Distance = (14.75 km/s) x (4.25 hours) x (3,600 sec/hour)
Distance = (14.75 x 4.25 x 3,600) (km-hr-sec/sec-hr)
<em>Distance = 225,675 km</em> (a little more than half-way to the Moon)
Answer:
It isn't safe for the truck to cross the bridge because the pressure exerted by the truck on the bridge is greater than the maximum tolerable pressure for the bridge, 562.5 Pa > 450 Pa.
Explanation:
Pressure is expressed in Force/Area.
So, for the truck, force exerted = 54000 N
Area covered = 30 × 3.2 = 96 m²
Pressure exerted by the truck = 54000/96 = 562.5 Pa
The pressure exerted by the truck on the bridge is greater than the maximum tolerable pressure for the bridge, 562.5 > 450, hence, it isn't safe for the truck to cross the bridge.
Answer:
Time interval;Δt ≈ 37 seconds
Explanation:
We are given;
Angular deceleration;α = -1.6 rad/s²
Initial angular velocity;ω_i = 59 rad/s
Final angular velocity;ω_f = 0 rad/s
Now, the formula to calculate the acceleration would be gotten from;
α = Change in angular velocity/time interval
Thus; α = Δω/Δt = (ω_f - ω_i)/Δt
So, α = (ω_f - ω_i)/Δt
Making Δt the subject, we have;
Δt = (ω_f - ω_i)/α
Plugging in the relevant values to obtain;
Δt = (0 - 59)/(-1.6)
Δt = -59/-1.6
Δt = 36.875 seconds ≈ 37 seconds
