Posts by kala
Total # Posts: 42
A sports car weighing 600 kg travels North at 35 m/s. Running a stop sign, the car crashes into a 2000 kg truck traveling East at 20 m/s. The vehicles become locked together and travel 18 meters before stopping. Find the direction and the deceleration of the wreckage from the ...
Factorize 2x2square +8x - 10 =0
You have a metal tank containing 74.0 moles of nitrogen gas at a pressure of 15.0 atm. If the pressure is measured at a temperature of 25.0 °C, then the volume of the tank must be ___ liters. (Round your answer to one decimal place and do not include units with the number.)
Hello I am having a bit of trouble with my DQ for this week and I was wondering if anybody could help me? The DQ for this week is: This week we are looking at symbolism and given the example of a Treaty signing. Tell me what you think about the entire situation regarding the ...
Hello I need help with my upcoming finals project here is what I have to do: Use information and data obtained from at least four reliable Internet sources to produce a 12- to 15-slide PowerPoint® presentation about multimedia tools that aid classroom instruction. Include ...
David is driving a steady 21.0m/s when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.50m/s2 at the instant when David passes. How far does Tina drive before passing David? What is her speed as she passes him?
A sprinter can accelerate with constant acceleration for 2.10s before reaching top speed. He can run the 100-meter dash in 10 s. What is his speed as he crosses the finish line?
Showing all work convert 315m to dam
Third one is 0.5741
Factorize 2x2square+8x - 10=0
two wires A and B have Youngsmodlii in the ratio of length's is 1:2 and ratio of length's is 1:1 .Under the application of same stress the rato of elongations is ---- ans 1.)2:1
when tension 'F' is applied the elongation produced in uniform wire of length l,radius r is e; when the tension 2F is applied the elongation produced in another uniform wire of length 2l and radius 2r made of same material is ans: 1.)1.0 e
a wire whose cross-sectional area is 4mm^2 is stretched by 0.1 mm by a certain load.if a similar wire double the area of cross-section is under the same load,then then elongation would be ans: 1)0.05mm
when the metal sphere is suspended at the end of a meal wire its extension is 0.4mm. If another metal sphere of the same material with its radius half as the previous is suspended then extension would be ans: 1)0.05mm
a metallic ring of radius 'r' and cross sectional area is fitted into an wooden circular disc of radius R (R greater than r).If he young's modulus of the material of the ring is Y, the fore with which the metal ring expands is : ans: 1.AY(R-r)/r
a string of cross section 2 cm^2 is doubled in length by the application of a longitudinal force 2*10^5dynes.the young"s modulus is: 1.10^5 dyne/cm^2
an aluminium rod has a breaking strain 0.2%.The minimum cross section area of he rd in m^2 in order to support a load of 10^4N is if young's modulus is 7*10^9 N/m^2 ans: 1.) 7.1*10^-4
if a stress is numerically equal to young's modulus the elongation will be ans: 1.)equal to the original length. but how?
there are two wires of same material.their radii and length are both in the ratio 1:2.if the extensions produced are equal, what is the ratio of the load ? ans: 1)1:2
The word "Pantheon" refers to: A. the people of the Pan dynasty. B. the ancient hill of Rome where Nero built his house. C. "all the gods".
a number which is less than or equal to 150 but if counted in pairs, one will remain if counted in threes, two will remain if counted in fours, three will remain if counted in fives, four will remain if counted in sixes, five will remain if counted in sevens, nothing will ...
A piece of metal of mass 112g is heated 100 degree C.,and dropped into a copper calorimeter of mass 40g containing 200g of water at 16 derreC. Neglecting the heat loss, the specific het of the meatal is nearly,if the equilibrium temperature reached is 24.1degree C, OPTIONS : 1...
The thermal capacity of 10g of a substance is 8 calories. the specific heat is in J/kg-K options : 1.3360 2.3630
The densities of two substances are in the ratio 5:6 and the specific heats are in the ratio 3:5 respectively. The ratio of their thermal capacities per unit volume is
How do the Noun phrases in the following sentence acquire case ? -It is odd that Bill should have refused the offer It has been noted that Noun phrases need case because they need to be visible in order to receive a theta role . Discuss the problems raised for this approach by...
8.B ANOTHER IS FOR A NOTHER Q,IS SPREAD NEW CROPS
4. WOULD BE PERSIA
B IS WAT I PUT ON MY TEST
I need to know whether I have at least five adjectives and five adverbs in this paragraph. I am really struggling with this. I understand what adverbs and adjectives are, I am just having trouble writing a paragraph where I have to insert them! One of the biggest risks of a ...
how would you classify a solution that contains 1.5g of lithium carbonate in 100g of water at 20 degrees
close relationship between mnagement and economics has led to the development of managerial economics
firms demand function,p=24-0.54q and the average cost function,AC=Q2-8Q+36+3/Q,calculate the level of output Q, which maximize total revenue,maximizes profits
When a 16.9-g sample of NaOH dissolves in 70.0 g of water in a calorimeter, the temperature rises from 22.4°C to 86.6°C.
convert the following quantities to the required unit. 277 cm to meters
1000 cubic measures?
"Have you ever read the story,'The tell-Tale Heart', by Edgar Allan Poe"? Dave asked. "Did the professor say, 'Put down your pencils'!" Janice asked.
i would just use my own ethnic group
is this what u r looking for? rl=12in t=14y no clue. r those ur answers?