Questions and answers by

Sangita

Questions (24)

A box is dragged across a floor by a rope which makes an angel 45 degree with the horizontal the tension in the rope is 100N
1. 1 answer
2. 962 views
You want to dilute 10M sulfuric acid to make 500mL of 1M sulfuric acid. How much 10M sulfuric acid should you measure?
1. 0 answers
2. 493 views
What is the inverse of matrix A, to the nearest tenth?-2 7 A= 6 -8
1. 1 answer
2. 403 views
Find the inverse of matrix A..6 -2 A= 6 -18
1. 0 answers
2. 361 views
What is the inverse of matrix C, to the nearest hundredth?10 -6 C= -12 2
1. 1 answer
2. 829 views
How many terms of the series12+4+4/3+4/9+..., are needed to yield a sum of 1459/81?
1. 1 answer
2. 469 views
Express the repeating decimal as a ratio of two integers.1.23535353535...
1. 4 answers
2. 3,959 views
Express the repeating decimal as a ratio of two integers.2.6231313131....
1. 2 answers
2. 546 views
How many terms of the series -6+0+6+12+... are needed to yield a sum of 324?
1. 0 answers
2. 382 views
Which of the following is equivalent to 1 − cos 2 θ/cos 2 θ?A. sec2 θ B. (csc 2 θ ) -1 C. tan 2 θ D. sin 2 θ E.
1. 2 answers
2. 583 views
What is the smallest positive value for x where y = sin 2x reaches its maximum?
1. 1 answer
2. 846 views
why has the national government's power increased since the constitution was ratified? Explain fully.
1. 1 answer
2. 848 views
How does the supremacy clause make federalism work? Discuss.
1. 1 answer
2. 479 views
When a mass of 28 g is attached to a certainspring, it makes 18 complete vibrations in 4.1 s. What is the spring constant of the
1. 0 answers
2. 1,262 views
Microwaves travel at the speed of light, 3.00×108 m/s.When the frequency of microwaves is 5.60×109 Hz, what is their
1. 0 answers
2. 689 views
If a spring with a spring constant k = 10 N/mis stretched from its equilibrium position by 0.1 m, and released, what would be
1. 2 answers
2. 2,726 views
A 52 kg skier is at the top of a slope, as in thefigure. At the initial point A, the skier is 12.4 m vertically above the final
1. 1 answer
2. 595 views
A 79.4 kg bobsled is pushed along a horizontalsurface by two athletes. After the bobsled is pushed a distance of 7.1 starting
1. 0 answers
2. 608 views
Two bullets have masses of 4.6 g and 11 g,respectively. Each is fired with a speed of 41.0 m/s. a) What is the kinetic energy of
1. 2 answers
2. 805 views
A 2.0×103 kg car accelerates from rest underthe action of two forces. One is a forward force of 1153 N provided by traction
1. 1 answer
2. 1,234 views
Two objects of same material are travellingnear you. Object A is a 1.9 kg mass traveling 8.3 m/s; object B is a 2 kg mass
1. 1 answer
2. 1,239 views
A 3.79 kg ball is dropped from the roof ofa building 163.8 m high. While the ball is falling to Earth, a horizontal wind exerts
1. 1 answer
2. 1,634 views
A 3.79 kg ball is dropped from the roof ofa building 163.8 m high. While the ball is falling to Earth, a horizontal wind exerts
1. 1 answer
2. 556 views
The earth exerts a force of 1400 N on an orbiting communications satellite that is 35 mi above the Earth.What is the magnitude
1. 1 answer
2. 676 views