Anil

2.5 kg rifle fires a 20 g bullet at 400 m/s. Find magnitude of the recoil velocity of the rifle.

14 years ago

A partical is projected vertically upward with speed 20 m/s. What will be the time after particle is at a height 15m above the ground( g=15 m/s*s)

14 years ago

In a real-life situation, to model the distance x and the height of hitting a baseball y as in: y = ax^2 + bx + c 1. When dealing with the initial height of the ball, what is happening when x = 0? Is it that the ball has not yet traveled any distance? 2....

14 years ago

why are these equations poor models of hitting a baseball: y= -0.002x(x-433.1) I get maximums of (216,93). Other problems' maximums are in the (220, 100)range. So are they poor models because the distance and heights are unreasonable? 2) Why is the consta...

14 years ago

The fuel rods for a certain type of nuclear reactor are bundled into a cylindrical shell. Consider this cross-section showing 19 identical fuel rods: a) If the diameter of the one rod is 2.8cm, calculate the shaded area of the cross-section. b) If the len...

14 years ago

An engineer designed a 620 ft long water canal to drain a rainwater detention pond. It is to have a trapezoid cross-section that is 8 ft deep, 15 ft across the bottom, with walls sloping outward at an angle of 40. (a)Calculate the volume of earth that ne...

14 years ago

rectangular open-topped box is made from a 9 x 16 piece of cardboard by cutting x-inch squares out of each corner and folding up the sides. What size square should be cut out to produce a volume of 120 cubic inches?? I set it up with 120 = (16-2x)(9-2x)(x...

14 years ago

I need help solving this because it involves 2 bases: log (base 2) [log (base 5) 25]= ???

13 years ago

$7,000 is invested into two accounts: 4,000 into an account paying 5% interest compounded monthly and $3,000 into an account paying 4.1% interest compounded continuously. compute the total interest earned at the end of 2 years.

13 years ago

The two formulas f(t) = Pa^t and f(t) = Pe^rt provide two models for the same exponential growth or decay function. How are the exact values of a and r related? (Hint: Find a formula for a as a function of r)

13 years ago

Pa^t and Pe^rt are two forms of the same exponential function. One would expect to obtain the same answer for f(18). Explain why you may not get the same answer for f(18) in practice.

13 years ago

A triangle has an angle whose sine is equal to sq rt 2/2. The angle is larger than 52 degrees in measure. Find the EXACT measure (in degrees) of the angle.

13 years ago

solve e^x / 3 = 5^x using logs.

13 years ago

Ten pounds of liquid water is at a temperature of 180 degrees F at standard atmospheric conditions. Determine the energy required to convert this to water vapor (steam) at a temperature of 212 degrees F.

13 years ago

If52 men can do a piece of work in 35days in how many days 28 men will do it?

12 years ago

El Nino and the mosoon. The earth is interconnected. For example, it appears that El Nino, the periodic warming of the Pacific Ocean west of South America, affects that the monsoon rains that are essential for agriculture in India. Here are the monsoon ra...

12 years ago

On a shelf of length 7 m . mathematics and English books r to be arranged. Mathematics books occupied 4 m. Then 1)find d fraction of shelf left for English books.

9 years ago

... a straight road observes that at two points l km apart, the angles of elevation of a pole in front of him are 30° and 75°.

8 years ago

Which new feature require installation of the Nissan connect door to door app on the users smart phone

6 years ago

The sum of two numbers is 9. 8 times smaller number is 2 more than 6 times the bigger number. Write an equation satisfying the statement and find the numbers

4 years ago

what are the objective of female's participation in planning of family

3 years ago

Name the set orders of number belongs to -15

3 years ago

If velocity v of particle moving in straight line is related with distance travelled S as v=2(1+S)^1/2. Find the acceleration of the particle.

14 years ago

I don't know how to find the specific heat in q1. I have q1 = 320 (specific heat) #2) How do I find heat vaporitzation for q2?

13 years ago

65 days

12 years ago

375000N

8 years ago

To see answer

3 years ago