Answers by visitors named: Ayush

a). 300/1001

840 is the correct answer.

2.16 gm

5.394090

let weight of zinc and copper=3x and 17x respectively. Then, 17x + 3x=4000grams 20x=4000grams x=(4000/20)grams x=200grams therefore, zinc required=(200*3)grams=600 grams=0.6 kg.

3 cups of flour=2 cups of water then by unitary method, 1 cup of flour=2/3 cups of water therefore, 2 cups of flour= (2/3*2) cups of water=4/3 cups of water

500

(8k+k² -6)-(-10k+7-2k²)

Height =2m Time -2s Acceleration due to gravity-9.8 From second equation of motion

Physics problems

Solve the problem

129

3 is answer but I don't know how

Please give me full answer

Their are two methods to solve this question...... The tree make angle 90 with the ground and elevation angle is 45 therefore by tan45=height of tree/length of shadow Height=4. {As tan45=1}

P*L^3/(3*E*I)+q*L^4/(6*E*I)

We got 6 because they had told more than half the 3 sides so 3 + 3 = 6 so that two sides which are equal are 6

best answer

6289437

Calculate the molality of a solution formed by dissolving 27.8g lit in 500ml of water.

Reason to write n-1 is equal to 4

Thanks

A, Starts from P, S=60kmph, At 11.30 AM (Rest of 28mins.) B, Starts from Q, S=40kmph, At 11.00 AM (Rest of 30mins.) At 8AM, distance between is 265km At 10AM, distance between is 145km as A travels 120km in 2hrs At 11AM, distance between is 45km as A&B travel 100km At 11.30AM, distance b/w is 15km at A travels 30km Now d=15,s=40(bec. A is resting) t=22.5 minutes Thus, 11.30+22.5 min=11.52.30AM