Recent content by hamza2095

Thank you! It also gives the same answer as I got but its good to see it in simpler form.

Would that not also give the same answer due to bedmas? I thought of doing this but wasn't sure how to

Homework Statement There is 100g of water inside of a 50g aluminum calorimeter. After a reaction takes place the temperature of the calorimeter goes from 20 degrees celsius to 25 degrees celsius Find the energy released by this exothermic reaction specific heat capacity of water is 4.18 and...

Were the values I concluded from the problem correct?, and what formula was used to get the answer of 1.29m?

Homework Statement In a large water tank experiment, water waves are generated with straight, parallel wave fronts, 3.00 m apart. The wave fronts pass through two openings 5.00 m apart in a long board. The end of the tank is 3.00 m beyond the board. Where would you stand, relative to the...

So according to Newton's 3rd law the average force the bullet exerted on the block should be 66N [FWD], correct?

Okay I see what your saying, so using conservation of momentum i get that both the block and bullet are going 46.2m/s FWD. If i use that final velocity to find force I get -66 N [FWD], which is still a negative.

I get 46.2m/s (fwd) for the velocity of the block and bullet using conservation of momentum, and with that i still get -66N fwd. But I think you use the velocity of the bullet relative to the block, which is still 0 because it's inside of it.

Homework Statement A bullet with a mass of 0.045 kg is shot at 560m/s fwd, and it gets dislodged in a stationary block that is 0.5kg. The collision lasts 0.35 seconds. What is the force imparted by the bullet on the block? Homework Equations F=(m(vf-vi))/t The Attempt at a Solution...

Homework Statement A cart mass of M moving at 3V (right) collides with a stationary mass of M, Determine the ratio of the two final velocities if the collision is elastic Homework Equations p=mv ek=(mv^2/2) The Attempt at a Solution m1v1=m1v1'+m2v2' Since the masses are all equal and v1 is...

Thank you. I made a chart saying there is a (1/2)(1/6) = 1/12 chance to win $10, and that there is a (1/2)(3/6)(1/12) = 1/48 chance to win $100 after multiplying the prizes and subtracting the starting fees ($20) I got $-17.083333 per play.

I designed this game for my Data class but I'm having a lot of trouble calculating the expected profit per play of this game. We have taken up examples involving lottery tickets in which you have to calculate the profit and winning per ticket bought but I can't seem to apply the same concepts to...

Homework Statement A flag of mass 2.5 kg is supported by a single rope as show in figure 13. a strong horizontal wind exerts a force of 12 N on the flag. Calculate the tension in the string? Homework Equations 0=Fg-Tsinθ 0=12-Tcosθ The Attempt at a Solution I get the right answer when both...

Homework Statement Homework Statement A newspaper boy throws papers sideways onto the porches of his customers while riding his bicycle along the sidewalk. The sidewalk is 15m in front of the porches. The boy throws the papers at a horizontal speed of 6m/s relative to himself, and rides the...

Homework Statement 10g of CaFl2 is disolved in 100 grams of water, what is mass/mass concentration Homework Equations c = mass of solute/mass of solution The Attempt at a Solution Would it be 10/100 = 0.1 or 10/110 = 0.091