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Brigid
Questions (17)
The cost accountant of a firm producing colour television has worked out the total cost function for the firm as
1 answer
787 views
I don't understand how the derivative of tanx/x equals sec^2x/x. I got sec^2x/(-x^2) by the quotient rule. Can someone explain
1 answer
454 views
Find an equation of the line tangent to the graph of y=sinx+3 at X=pi.
The answer key says y=-X+Pi+3 But I got y=-X+5. Where did
3 answers
644 views
I have a to find the frequency of "30 m radio waves" that have a given velocity. My question is does the "30 m" refer to
2 answers
456 views
My problem is as follows: A 12 kg pail hanging on a rope is pulled up by a 1 HP motor. What's the max. speed the pail could
2 answers
392 views
I'm trying to determine the specific heat of copper by experiment and I have a question about the change in temperature of the
4 answers
760 views
I'm stuck on this problem. "You mix 100 ml 60 degree C water with 100ml 20 degree C water. Find the final temperature" Changing
1 answer
611 views
An 60kg athlete wants to jump over a 2 m bar. How fast must she go the moment her foot leaves the ground in order to get her
0 answers
972 views
If a .3kg arrow is fired at 120m/s at a 30degree angle with the horizontal, how high is it at the top of its arc? I'm confused.
3 answers
567 views
My problem is as follows "A 3 kg brick is dropped from a height of 1.0 m onto a nail which is vertically stuck in a plank of
2 answers
644 views
If a ball is being lifted at a constant speed, does this mean that acceleration is 0 and therefore F=ma=0 and therefore no work
2 answers
399 views
I'm having a problem understanding a question. "If a man exerts a 200N force while pushing a crate 5.0 m across a floor against
2 answers
851 views
Regading my question yesterday about the ball being caught by the man on the scales (Sun. 3:47), I'm now wondering if, to get
4 answers
500 views
Hi again, Can anyone help me with the physics problem I posted earlier today (Sunday) at 3:47 p.m. I would really appreciate
2 answers
557 views
I've been stuck on this problem and hope someone can help me. A man is standing on scales which show his weight as 607.6 N. A
2 answers
515 views
Can someone please help me sort out this problem? "A boy standing at the equator jumps vertically into the air. Does he land in
2 answers
429 views
Can someone please tell me if I've approached this homework problem correctly. A boy is running at his best speed of 6.0 m/s to
3 answers
875 views
Answers (15)
What is the answer
Oh I see! Would you mind helping me with another? y=Tanx/X at X=Pi/4 find the equation of the normal to the curve.
Thanks so much!
Thanks so much!
Thanks so much for clearing that up!
Thanks. Thought so but my friend disagreed with me.
Thanks so much.
Thanks!
Thank you.
Thanks!
Thank you so VERY much!
Hi again, Can anyone please help me with the physics problem I posted at 3:47 p.m. today (sunday). I would really, really appreciate it. Thanks!
Thanks!
Yeah! thank you very much for checking my work. I can go to bed now.
EASY FOR ME! Ok,ignous rock. I'm in 4th grade and I remember! YAY!
