Homework Statement:: I tried google search and I give up.
Relevant Equations:: How does output wave of wifi/bluetooth look like?
How does output wave of wifi/bluetooth look like?
I understand that Zener Breakdown occurs when the reverse current starts flowing in the junction because of which depletion region entirely vanishes. Can I power things using this reverse current ? Or will it damage the appliance?
Suppose man is traveling in a rocket. if rocket goes up, man feels someone thrusting him down, vice versa.
What exactly pulling the man up/down in rocket?
7yr=100% interest
21yr=300% interest
Amount=(100+300)%=400%=4 times of principal
How 7 years is equal to 100% interest?
Why in last step, we added 100% & 300%?
P = 49000; R = 57 1/7%; T = 4 yrs; SI of 2nd year = ?
R = 57 1/7% i.e 4/7. i.e Interest/Principle.
Principle; 7 corresponds to 49000.
After this how to proceed?
A and B leave their places and start moving towards each other. If they are 50m apart after both 2 min and 3 mins, how far are their places?
I can able to draw a diagram for this problem:
Take distance between their places as D
Speed of A = x meter /minutes
Speed of B = y meter/minutes...
A boat goes upstream for 3 hr 30 min and then goes downstream for 2 hr 30 min. If the speed of the current and the speed of the boat in still water are 10/3 kmph and 15/2 kmph respectively, how far from its original position is the boat now?
With reference to ground, the water travels...
I able to calculate this 2 things:
relative speed of A and B = 3 + 1; 4m/sec
Time for meeting for first time in opposite direction = 100/(3+1); 25 sec
I can't able to find distance in Meeting for first time for opposite direction.
B moves at 1 m/sec.
The track is 100 m in length. T =100/1 = 100 sec for B to complete one lap on the track.
In that time, A will complete 3 laps.
So answer will be 100 sec?
Circular track: Both are in same direction.A = 3m/sec, B = 1 m/sec. Circumference of track= 100m.
What is the time taken by A & B to reach starting point for first time?
In 8 years, amount becomes 17 times of P. So in 15 years, amount becomes how much?
A) This is the shortcut:
##\large \frac{8}{?} = \frac{17-1}{n_{2}-1} → \frac{8}{15} = \frac{16}{n-1} \normalsize → n = 31 \; times ##
Is there any wrong in this question statement?
A block of mass ##10kg## rests on a horizontal floor. The acceleration due to gravity
is ##9.81 m/s^{2}##. The coefficient of static friction between the floor and the block is ##0.2##.
A horizontal force of ##10N## is applied on the block as shown in the figure.
The magnitude force of friction...
Acceleration if no friction exist; ##a_{x} = mg.sinθ##
Acceleration if friction exist; ##a = g.sinθ - µ_{k}.g.cosθ## (I am not sure whether it is ##μ_{s}## or ##µ_{k}## in this equation)
Are these equations correct for sliding block equations?
Sol:
##Mg.sinθ - μMg.cosθ = ma##
##a = g.sinθ - μg.cosθ##
Now ##S = ut + \large\frac{1}{2}\normalsize at^{2}##
but ##u = 0##
##t = \large\sqrt\frac{2s}{a} = \sqrt\frac {2s}{gcosθ(tanθ- μ)}##
My questions:
What is the meaning of " PQ = s" in the question?
How ##t = \large\sqrt\frac{2s}{a}...
Problem Statement: Difference between frictional force and force of friction.
Relevant Equations: Difference between frictional force and force of friction.
Difference between frictional force and force of friction. Are these two terms equal?
The green dot shows the position of the Earth at the instant the Sun disappears. The distance from the Sun, ##d##, is the Earth's orbital distance and the velocity ##v## is the Earth's orbital velocity.
When the Sun disappears the Earth heads off in a straight line at constant velocity as shown...
So Earth has two angular momentum: about its axis and about the sun?
I think Earth converts its angular momentum into Linear momentum after sun disappears.
In this video, around 2:28 He explains Earth maintain its same angular momentum even after sun disappears. I didn't get it.
How Earth maintain its same angular momentum even after sun disappears?
Time it takes from A to travel to B; ##T = \large\frac{Vsinθ}{g}##
Max height object can reach, ##h = \large\frac{V^{2} sin2θ}{g}##
Time it takes for for B to travel to C; ##T = \large\sqrt\frac{2y_{max}}{g}##
What is the proper formula for ##Y_{max}## for this trajectory?