A gun of mass 5.00 tonne fires a shot of mass 23kg horizontally and recoils 1.50m. The recoil is resisted by a constant force of 10.0 KN. Calculate the muzzle velocity of the shot (i. e. the speed of the shot as it e
merges from the gun).
A man of mass 70kg stands at the end of a rough wooden plank of mass 35kg and length 9m. The plank
is situated on a smooth table. The man walks from one end of the plank to the other.
(a)How far does the man walk relative to the table?
(b) How far does the plank slip back?
(c) How far has the centre of mass of the system (man+plank) moved?
A particle of mass m strikes a wall at right angles with speed vand rebounds at the same speed
(a)What impulse is exerted on the wall by the collision?
(b)lf n particles rebound in this way per second, what is the average force exerted by the particles on the
wall?
A bullet of mass 6.00x10^-3 kg is fired horizontally into a block of wood that rests on a horizontal table.
After the collision an opposing force of 1.50N brings the block, with embedded bullet, to rest in 2.00s
Find the speed of the bullet just before it struck the block
A gun of mass 5.00t fires a shot of mass 20.0kg and recoils 2.00m along the line of projection against an
opposing force of 1.00×10^4N.
Calculate the velocity with which the shot leaves the gun.

elly's long hair:

a. if the salon only takes cash, then this isn't the problem. it doesn't matter how much she has in her checking account.   she can't get a haircut until she has the cash.

b. if she has overdraft protection, then there's no problem.   she can go ahead and write a check that her account can't cover, then sometime later, pay the bank some outrageous usury for loaning her a few bucks for a few days, but with beautiful hair.

c. if elly has some principles, and doesn't want to write a bad check, then now she has a problem.   her desire for the new hairstyle is in conflict with her honesty and integrity.

d.   if the bank will not process a check she writes, then even if she had a million $$ in her account, she couldn't use any of it.   the amount she has in her account is not the problem.   and if i may suggest, she might as well close her checking account, and put the money where it'll work for her.   it's not doing her a bit of good in a checking account, since she can't write any checks.

justin can't pay the full balance:

a. he can't even handle the credit limit he has now.   under no circumstances should he ask for a higher limit.

b.   he can ask for the grace period to be extended.   but that's no solution, the bank will almost certainly refuse anyway, and there are much better options.   he knew the rules of his credit card when he started using it.

c.   he definitely should pay the interest on the balance, plus as much of the balance as he can cover at the same time.

d.   he definitely should pay the minimum otherwise they could shut down his card.   he should also pay as much more as he possibly can.   he should also remember the awkward situation he's in, stop buying stuff on credit that he can't afford, and avoid adding any more debt.

i'd say that justin's best best option isn't on this list of choices.   what he has to do:   pay as much as he can at least the minimum payment plus as much more as he can and then avoid adding more debt.

dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.

radiation

explanation:

heat is transmitted by radiation