Recent questions tagged other

(chatquestion)...7. A small metal ball is being pulled gradually on a fixed frictionless hemisphere as shown in the figure. Radii of the ball and that of the pulley are much smaller than that of the hemisphere. As the ball slides from the bottom to a position close to the top of the hemisphere, how do. the magnitudes of pulling force F and contact force R between the ball and the hemisphere change? (a) F increases and R decreases. (b) F decreases and R increases. (c) F decreases and R remains unchanged. (d) F remains unchanged and R decreases.

asked May 27, 2020 by balaji.thirumalai

1 answer

(chatquestion)...19. For a certain body, the velocity-time graph is shown in the figure. The ratio of applied forces for interval AB and BC is D (а) + 2 (b) - 60° 30° 1 (c) 1 (d) t + 3 A B C

asked May 27, 2020 by balaji.thirumalai

1 answer

(chatquestion)...10 gm of ice at -20°C is dropped into a calorimeter containing 10 gm of water at 10°C; the specific heat of water is twice that of ice. When equilibrium is reached , the calorimeter will contain

asked May 27, 2020 by balaji.thirumalai

1 answer

(chatquestion)...8. Which of the following graph represents non accelerate uniform motion (а) (b) (d) t

asked May 27, 2020 by balaji.thirumalai

1 answer

(chatquestion)...A particle is moving eastwards with velocity of 5 m/s. In 10 sec the velocity changes to 5 m/s northwards. The average acceleration in this time is (a)Zero (b) m/s? toward north-west (c) m/s toward north-east - m/s toward north-west

asked May 27, 2020 by balaji.thirumalai

1 answer

(chatquestion)...(b) A liquid of specific gravity 0.85 flows from B to A as shown in Figure Q2 (b). If h is 10.5 cm and the pressure at A and B are 170 kPa and 275 kPa respectively. Determine the friction head loss in meters of liquid. [5mks] А Figure Q2 (b)...(Can I get some help for this question please)

asked May 26, 2020 by balaji.thirumalai

0 answers

(chatquestion)...Do the points (3, 2), (-2, -3) and (2, 3) form a triangle? If so, r gle formed.

asked May 26, 2020 by balaji.thirumalai

1 answer

(chatquestion)...In A PQR, right-angled at Q. PR + QR = 25 cm and PQ = 5 cm. Determine the values of sin P, cos P and tan P.

asked May 26, 2020 by balaji.thirumalai

1 answer

(chatquestion)...1- tan A 8. If 3 cot A = 4, check whether = cos? A – sin²A or not. %3D 1 + tan?A Sin

asked May 26, 2020 by balaji.thirumalai

1 answer

(chatquestion)...7. Express sin 67° + cos 75° in terms of trigonometric ratios of angles between 0° and 450 8.5 Trigonometric Idontition

asked May 26, 2020 by balaji.thirumalai

1 answer

(chatquestion)...6. IfA, B and C are interior angles of a triangle ABC, then show that B+C sin. cos A = COS 2

asked May 26, 2020 by balaji.thirumalai

1 answer

(chatquestion)...Question No.8 1.00 Bookmark In a certain code language, if ABOUT is coded as EDRWX, then how is DAILY coded in that language? ఒక ప్రత్యేకమైన కోడ్ భాషలో, ABOUT ను EDRWX గా కోడ్ చేస్తే, ఆ భాషలో DAILY ఎలా కోడ్ చేయబడుతుంది (A) O CPMEH СРМЕН GDLOB (Chosen option) GDLOB (B) (C) O DGLBO DGLBO (D) O WZROB

asked May 26, 2020 by balaji.thirumalai

1 answer

(chatquestion)...Prove that the function f given by f(x) = |x – 1|, x eR is not differentiable at x = 1.

asked May 26, 2020 by balaji.thirumalai

1 answer

(chatquestion)...Prove that the greatest integer function defined by f(x) = [x], 0<x <3 is not differentiable at x = 1 and x = 2.

asked May 26, 2020 by balaji.thirumalai

1 answer

(chatquestion)...sin (ax + b)

asked May 26, 2020 by balaji.thirumalai

1 answer

(chatquestion)...- cos (sin x)

asked May 26, 2020 by balaji.thirumalai

1 answer

(chatquestion)...sin (x² + 5)

asked May 26, 2020 by balaji.thirumalai

1 answer

(chatquestion)...9. Thirteen resistors each of resistance R are connected in the circuit as shown in figure. Net resistance between A and Bis KE ww OB ww ww (a) 2R 4R (b) 3 2R 3 (d) R 1 D: ww

asked May 26, 2020 by balaji.thirumalai

1 answer

(chatquestion)...3. Six resistors each of 10 ohm are connected as shown. The equivalent resistance between points X and Y is ww (а) 20 Q (b) 5 2 (c) 25/3 2 (d) 10 2 nonnoctod in the circuit as shown in figure. Net

asked May 26, 2020 by balaji.thirumalai

1 answer

(chatquestion)...Rate of dissipation of Joule's heat in resistance per unit volume is (symbols have usual meanings) (a) oE (b) oJ (c) JE (d) None of these The variation of current ( Dand y

asked May 26, 2020 by balaji.thirumalai

1 answer

(chatquestion)...In the circuit shown, what is the potential difference Vpo 20 2V= 4V= (a) +3V (c)- 2V (b) + 2V (d) None of these www

asked May 26, 2020 by balaji.thirumalai

1 answer

(chatquestion)...7. Two conducting spheres of radius R and 2R lying far apart, are connected by a conducting wire. If a charge Q is given to the system, the common potential will be (a) kQ/R kQ/2R (b) kQ/3R (c) (d) kQ/5R

asked May 26, 2020 by balaji.thirumalai

0 answers

(chatquestion)...Question No.19 1.00 Bookmark 97+6x13/(312+4) = ? 97+6x13/(312+4) = ? (A) O 92 92 (B) 94 94 (C) O 98 (Chosen option) 98 (D) 96 96

asked May 26, 2020 by balaji.thirumalai

1 answer