# Free solutions on any math topic

Recent questions in Other
opatovaL 2020-10-21

### A uniform cable of weight w hangs vertically downward, supported by an upward force of magnitude w at its top end. A)What is the tension in the cable at its top end? B) What is the tension in the cable at its bottom end? C) What is the tension in the cable at its middle end?

banganX 2020-10-21

### Two sinusoidal waves, each of wavelength 5 m and amplitude 10cm, travel in opposite directions on a 20-m stretched string whichis clamped at each end. Excluding the nodes at the ends of thestring, how many nodes appear in the resulting standing wave?

Kyran Hudson 2020-10-21

### An expandable cylinder has its top connected to a spring with force constant. . The cylinder is filled with 5.00 L of gas with the spring relaxed at a pressure of 1.00 atm and a temperature of ${20.0}^{\circ }$ (a) If the lid has a cross-sectional area of 0.0100 ${m}^{2}$ and negligible mass, how high will the lidrise when the temperature is raised to T = 220°C? (b) What is the pressure of the gas at 220°C?

jernplate8 2020-10-20

### The bent wire shown in Fig. lies in a uniform magnetic field. Each straight section is 2.0 m long and makes an angle of $={57}^{\circ }$ with the x axis, and the wire carries a current of 2.0 A. (a) What is the net magnetic force on the wire in unit-vector notation if the magnetic field is 4.0 T? (b) What is the net magnetic force on the wire in unit-vector notation if the magnetic field is 4.0 T?

rocedwrp 2020-10-20

### A cork on the surface of a pond bobs up and down two times per second on ripples having a wave length of 9.10 cm. If the cork is 13.0 m from shore, how long does it take a ripplepassing the cork to reach the shore?

arenceabigns 2020-10-20

### An olympic long jumper leaves the ground at an angle of23degress and travels through the air for a horizontal distance of8.7m before landing what is the take off speed? Could you kindlyassist me?

Isa Trevino 2020-10-20

### An astronaut is in training in an earthbound centrifuge that consist of a small chamber whirled around horizontally at the end of a 5.1-m-long shaft. The astronaut places a notebook on the vertical wall of the chamber and it stays in place. If the coefficient of static friction is 0.62, what is the minimum rate at which the centrifuge must be revolving?

vazelinahS 2020-10-19

### A particlewith a charge of $5.5×10–8C$ charge is fixed at theorigin. A particle with a charge of $–2.3×10–8C$ charge ismoved from x = 3.5 cm onthe x axis to y = 3.5 cm on the y axis. The change in the potentialenergy of the two-charge system is: Chapter 24, Test bank Question 4 $3.2×10–4J$ $–3.2×10–4J$ $9.3×10–3J$ $–9.3×10–3J$

Bevan Mcdonald 2020-10-19

CMIIh 2020-10-18

### Racing Racing Cars A and B are traveling on circular portions of a racetrack. In the instant shown, the speed of A is decreasing auto rate of $8\frac{m}{{s}^{2}}$, and the speed of B is increasing at the rate of $3\frac{m}{{s}^{2}}$. For the positions shown, determine (a) the velocity of B relative to A, (b) the acceleration of B relative to A.

Alyce Wilkinson 2020-10-18

### A new design for the braking system on a certain type of carhas been proposed. For the current system, the ture average brakingdistance at 40 mph under specified conditions is known to be 120ft.It is proposed that the new design be implemented only if sampledata stronly indicates a reduction in true average braking distancefor the new design. a) define the parameter of interest and state the relevanthypotheses.

waigaK 2020-10-18

### simplify the expression: $\mathrm{csc}\left(\mathrm{arctan}2x\right)$

Khaleesi Herbert 2020-10-18

### Block A in the fig. 5.58 weighs 1.20N and Block B weighs3.60N. The Coefficient of kinetic friction between all surfaces is0. 300. Find the magnitude of the horizontal force F necessary to drag black B to the left at a constant speed a) if A rest on B and moves with it (fig. 5.28am). b) If A is held at rest.

opatovaL 2020-10-18

### On a long flat firing range, a projectile is fired with an initial speed of 75.2 m/s at an angle of 34.5 degrees above the horizontal. Determine (a) the maximum height reached by the projectile, (b) the total time in the air, (c) the total horizontal distance covered (that is, the range) and (d) the velocity of the projectile 1.50 s after firing.

Zoe Oneal 2020-10-18
vazelinahS 2020-10-18

### A 2.10 kg book is raised 2.20 m above the ground by a 1.60 m tall person. What is the book's potential energy in relation to:(a) the ground and (b) the top of the persons

sibuzwaW 2020-10-18