# Homework Help: Science: Physics

## Recent Homework Questions About Physics

**Physics**

A Micro –Hydro turbine generator rotor is accelerating uniformly from an angular velocity of 610 rpm to its operating angular velocity of 837 rpm. The radius of the rotor is 0.62 m and its rotational acceleration is 5.9 rad/s2. What is the rotor’s angular velocity (in rad/...

*Wednesday, March 29, 2017 by Kiki*

**Physics**

An pie plate of radius 0.12 m spins and accelerates at a constant rate of 13 rad/s. What was its angular acceleration? R=0.12. W1=13 W2=29 t=5.4 (29 -13) /5.4= 2.96rad/s is the answer I calc but the answer key had 2.8 rad/s

*Wednesday, March 29, 2017 by Koko*

**Physics**

a . rather then taking the elevator a a 65kg student decided to climb 276m vertical height of stairs to the observation deck of the effiel tower. How much work does the student do against gravity climbing to this level? b. It's estimate that 1kg of fat will provide 3.8x10^7 J ...

*Wednesday, March 29, 2017 by tristan*

**physics**

There are three charges on a line. Charge A has 6e-07 C and is located at x=0. Charge 1 has 2e-06 C and is located at x = 1 m. Charge B has -5e-05 C and is located at x = 4 m.

*Wednesday, March 29, 2017 by iowa*

**physics**

An electron and a proton have charges of opposite sign, but the magnitude of their charges has the same value of 1.60 10-19 C. Suppose the electron and proton in a hydrogen atom are separated by a distance of 4.30 10-11 m. What are the magnitude and direction of the ...

*Wednesday, March 29, 2017 by iowa*

**physics**

a stone attached to the end of elastic string is whirled around in a circular path of radius 20cm if the stone makes 15 complete revolution in 5 seconds, calculate its angular and linear velocities.

*Wednesday, March 29, 2017 by isah a*

**physics**

There are two charged particles. They exert an electrostatic force of 10 N on each other. Suppose the distance between the two particles is increased to five times the original distance. What will the magnitude of the force?

*Wednesday, March 29, 2017 by iowa*

**Physics - Capacitance**

In the case of having two plates of a capacitor, in the formula for capacitance C = (Epsilon)(A/d), is A the sum of the areas of each plate or just the area of one plate? And if it is the latter, then it can be assumed that both plates have the same area, right?

*Wednesday, March 29, 2017 by Kid*

**physics /torque**

a door is fixed with the support the length of the door is 3.3foot. the handle is attached at o.3foot. from a side opposiite to the side of hinches. it is opened with the torque of 5Nm. how much force is needed

*Wednesday, March 29, 2017 by rabia*

**Physics**

a boy whose weight is 600 N runs up a flight of stairs 10 m high in 12 second .What is his average power?

*Wednesday, March 29, 2017 by Saleem*

**physics**

Water has a specific heat of 4.186 J/g°C. How much heat is required to increase 10.0 g of water from 25.0°C to 30.0°C?

*Wednesday, March 29, 2017 by lura*

**physics**

a man weighs 162 pounds, and is 69 inches tall. his forearm is parallel to the ground. he holds an 8 pound weight in his hand. the biceps has an angle of insertion of 85 degrees with a distance of 1.4 inches at insertion. the system is equilibrium. what force is the biceps ...

*Wednesday, March 29, 2017 by jh*

**Physics**

A billiard ball 0.62 kg moving at 8.2 m/a elastically strikes a bowling ball, 3.2 kg moving in opposite direction at 1.2 m/s Calculate final velocities The kinetic energy before the collision The kinetic energy after the collision

*Tuesday, March 28, 2017 by Jen*

**physics**

A playground merry-go-round of radius R = 1.1 m has a moment of inertia of I = 280 kg*m^2. and is rotating at a rate of ω = 9 rev/min around a frictionless vertical axis. Facing the axle, a 37 kg child hops onto the merry-go-round and manages to sit down on the edge. What is ...

*Tuesday, March 28, 2017 by matt*

**physics**

A 2.51 kg particle moves in the xy plane with a velocity of v = ( 4.98 , -3.58 ) m/s. Determine the angular momentum of the particle about the origin when its position vector is r = ( 1.73 , 1.15 ) m.

*Tuesday, March 28, 2017 by matt*

**Physics**

A uniform meter rule is balanced at the 30cm mark when a load of0.8 newtons is hung at the zero mark .at which point is the center of gravity.

*Tuesday, March 28, 2017 by Johnnathon*

**Physics**

Using Coulomb's law to solve: Charge A is +2.0x10^-6C and charge B is +3.0x10^-6C. The two changes are 3 m apart. What is the force between them?Is the force attractive or repulsive? Okay so here's what I have so far (2.0x10^-6)(3.0x10^-6)/(3)^2 It is confusing me with the ...

*Tuesday, March 28, 2017 by ANONYMOUS*

**physics**

a) a driver of mass 55kg needs to jump to a height of 1.1m above her take off height, at which point her speed needs to be 0.5m/s^. How fast just she be travelling the instant her feet leave the diving board? So we know eg=mgh =9.8*55*1.1 I assumed we're trying to find the ...

*Tuesday, March 28, 2017 by alex*

**Physics**

Determine the amount of work required for each of the following: a) to lower a 35kg sack of rice through a height of 3.5m b) to carry the 30kg sack of rice 10m along a corridor c)to crave the sack of rice 15m along the corridor at a constant velocity against a frictional force...

*Tuesday, March 28, 2017 by Amy*

**physics**

Driving in your car with a constant speed of v= 22 m/s, you encounter a bump in the road that has a circular cross-section, as indicated in the figure (Figure 1) . Part A If the radius of curvature of the bump is 52 m, find the apparent weight of a 66-kg person in your car as ...

*Tuesday, March 28, 2017 by alex*

**PHYSICS**

Two springs, with force constants k1=175N/m and k2=270N/m, are connected in series, as shown in (Figure 1) . Part A: When a mass m=0.50kg is attached to the springs, what is the amount of stretch, x? k1 I k2 I m ? ] x

*Tuesday, March 28, 2017 by ANA*

**physics help**

At a playground, a 20-kg child sits on a spinning merry-go-round, as shown from above in (Figure 1) . The merry-go-round completes one revolution every 6.2 s, and the child sits at a radius of r=1.8m. a) What is the force of static friction acting on the child? b) What is the ...

*Tuesday, March 28, 2017 by anonymous*

**Physics**

3 particles of masses m1 = 1.5 kg , m2 = 2.5 kg and m3 = 3.5 kg form an equilateral triangle of edge length l= 135 cm. Determine the center of mass of the system.

*Tuesday, March 28, 2017 by Happinessdelight*

**Physics**

Max has a mass of 65 kg and sits in a canoe that has a mass of 55 kg. He jumps with a horizontal velocity of 2m/s towards the shore. What is the velocity of the canoe?

*Monday, March 27, 2017 by Happinessdelight*

**physics**

A steel wire is used to lift heavy object. The cable has a diameter of 14.25 mm and an initial length of 33.5 m. If the cable stretches 2.50 mm, what is the mass of the heavy object? Use 20.0 x 1010 Pa for Young’s modulus for steel. Give your answer in kg and with 3 ...

*Monday, March 27, 2017 by Idali*

**Physics**

A wheel mounted on a stationary axle starts at rest and is given the following angular acceleration: 9-12t where t is the time after the wheel begins to rotate. Find the number of revolutions that the wheel turns before it stops ( and begins to turn in the opposite direction).

*Monday, March 27, 2017 by Happinessdelight*

**Physics**

A 0.250 kg ball swung on a 1.3 m string in a vertical circle. If it's tangential speed at the bottom of the path is 4.2 m/s, what is the maximum speed the ball can have at the top and still move in a circle?

*Monday, March 27, 2017 by Happinessdelight*

**Physics**

What is the mass of water that has its temperature raised from 27°C to 32°C when it is heated by 5.0 x 106 J of heat energy?

*Monday, March 27, 2017 by Student12*

**Physics**

Okay, I'm really confused in general. My question says: "A solid piece of clear transparent material has an index of refraction of 1.61. If you place it into a clear transparent solution and it seems to disappear, approximately what is the index of the refraction of the ...

*Monday, March 27, 2017 by Jo*

**Physics**

In the figure, the meterstick's mass is 0.130 kg and the string tension is 2.30 N . The system is in equilibrium. A) Find the unknown mass m. B) Find the upward force the fulcrum exerts on the stick. I found part A and the answer is .634kg but I can not figure out part B.

*Monday, March 27, 2017 by Kaitlyn*

**Calc. Based Physics**

10.1 Three uniform spheres with masses m1 = 6.0 kg, m2 = 2.0 kg , and m3 = 4.0 kg are fixed at the positions shown in the diagram. Assume they are completely isolated and there are no other masses nearby. m_1 | | 3cm | m_2-- P ^ | 1cm |2cm m_3 (a) What is the magnitude of the ...

*Monday, March 27, 2017 by Sarah*

**PHYSICS**

Two tugs are towing a ship at Constant speed against a total resistance of 50KN. The angles between the tow ropes and the direction of moment are 30degree and 60degree respectively. What is the tension in each of the tow ropes?

*Monday, March 27, 2017 by Assatu*

**Physics**

A 200h bag of potato chips contains 4.8MJ of energy. How long would it take you working at your maximum body power to consume this energy? So we did 2 trials where we ran up the stairs, and my final power for 1 was 246W and for the other it was 338W. So I assume you divide the...

*Monday, March 27, 2017 by Amy*

**Physics**

How many calories are needed to heat 247 grams of ice at 14F to water at 50C? s(ice)=0.500kcal/kg/C, s(water)=1.000kcal/kg/C ,hf= 79.7kcal/kg, hv= 540 kcal/kg

*Monday, March 27, 2017 by Jared*

**physics help**

Driving in your car with a constant speed of v= 22 m/s, you encounter a bump in the road that has a circular cross-section, as indicated in the figure. If the radius of curvature of the bump is 52 m, find the apparent weight of a 66-kg person in your car as you pass over the ...

*Monday, March 27, 2017 by anonymous*

**physics**

Two springs, with force constants k1=175N/m and k2=270N/m, are connected in series When a mass m=0.50kg is attached to the springs, what is the amount of stretch, x?

*Monday, March 27, 2017 by ana*

**Physics**

A train blows its horn as it approaches a crossing. A.) if the train engineer observes a frequency of 125Hz and a stationary observer at the crossing observes a frequency of 132Hz, what is the speed of the train? (The speed of sound is 330m/sec on this day). B.) what frequency...

*Monday, March 27, 2017 by Jared*

**Physics**

Two resistors each of 15 Ohm and 10 Ohm are in parallel, find the effective resistance

*Monday, March 27, 2017 by Balu*

**Physics**

Hello so my question is an 85kg kangaroo acquires 2.2kJ of energy in jumping straight up and down from rest. How high does the kangaroo jump? My solution: When he's at rest Eg=2200J but in air Eg=0 Eg=mhh 2200=85(9.8)h 2.64m=h Looking at it now it doesn't really make sense ...

*Sunday, March 26, 2017 by Amy*

**Physics**

A 240 kg roller coaster car Rolls over the crest of the roller coaster with a speed of 2.2m/s.if it falls through a vertical height of 12m down the tracks to the bottom of a trough, how fast will it be travelling? So here's what I did but I don't think it's right: Eg=mgh =...

*Sunday, March 26, 2017 by Laura*

**physics**

Consider a ladder placed against a frictionless wall. What happens to the friction force between the ladder and the floor as you climb up the ladder? (Assume the ladder is not sliding.) A. The friction force decreases. B. The friction force remains the same. C. The friction ...

*Sunday, March 26, 2017 by Idali*

**physics**

Which force(s) provide(s) the centripetal force needed for a car to make a turn on a banked curve? A. Weight, only B. Tension, only. C. Friction, only. D. Coriolis force, only. E. Friction and normal force. Is it D?

*Sunday, March 26, 2017 by Idali*

**physics**

determine the center of mass for three particles(1.5, 2.5, 3.5) forming a equilateral triangle one side lenght of 135cm.

*Sunday, March 26, 2017 by dickson*

**physics**

what is the work done in moving a positive charge 12UC across two points 6cm apart

*Sunday, March 26, 2017 by Vibez*

**AP physics (multiple choice)**

an object is undergoing uniform circular motion. which of the following statements is true? a. the velocity is constant b. the acceleration is constant. c. the a is constant but v varies. d. the v is constant but the a varies. E. both a and v vary.

*Sunday, March 26, 2017 by Anthony*

**AP physics**

1000 kg car is going clockwise around a curve iwth radius of 30m. coefficient of frction=0.5 if the road was banded at an angle what would happen to the speed required or the radius of the curve? explain.

*Sunday, March 26, 2017 by Anthony*

**Physics**

A 55kg arrow is fired vertically upward at a speed of 42m/s. It rises upwards, then drops and lands on the ground. If it lodges itself 12cm in the ground, determine the average force that the ground exerts on the arrow This is what I've done but I don't think it's correct: Eg=...

*Sunday, March 26, 2017 by Laura*

**physics**

A stone of mass 5kg is thrown vertically upwards with velocity 10ms final calculate the height.

*Sunday, March 26, 2017 by Aisha haruna*

**Physics**

Efficiency of a single fixed pulley is 85%.what effort is needed to lift a load of 85kgf using it?

*Sunday, March 26, 2017 by Ishpreet*

**Physics 2**

a point charge q1=+9μc is held fixed at the origin. A second point charge with a charge of-5μC and mass of 3.2 x 10^-4 kg is placed on the + x-axis, 0.90 m from the origin. a.) What is the potential energy of the pair of charges? (consider the potential to be zero at ...

*Sunday, March 26, 2017 by Jd del rosario*

**physics**

a uniform meter rule is pivoted at 20cm mark . It is balanced when mass of 100gm on 10cm mark and mass of 50 gm on 30 cm mark are suspended. Find d mass of meter rule

*Sunday, March 26, 2017 by shreya*

**Physics - Voltage across a wire of unknown length**

Four copper wires of equal length L are connected to a 100V source. Their cross-sectional area are 1cm^2, 2cm^2, 3cm^2, and 4cm^2. Find the voltage across the 3cm^2 wire. Leave your answer in terms of L, it should cancel out. - So I tried using and equating various relevant ...

*Saturday, March 25, 2017 by Kid*

**physics**

A block of mass m = 3.53 kg is attached to a spring which is resting on a horizontal frictionless table. The block is pushed into the spring, compressing it by 5.00 m, and is then released from rest. The spring begins to push the block back toward the equilibrium position at x...

*Saturday, March 25, 2017 by Anonymous*

**physics**

fluid of constant density = 960 kg/m3 is flowing steadily through the above tube. The radius at the sections are r1 = 0.05 m, r2 = 0.04 m. The gauge pressure at 1 is P1 = 200 000 Pa and the velocity here is v1 = 5 m/s. We want to know the gauge pressure at section 2.

*Saturday, March 25, 2017 by Maha*

**physics**

Driving in your car with a constant speed of v= 22 m/s, you encounter a bump in the road that has a circular cross-section, as indicated in the figure. If the radius of curvature of the bump is 52 m, find the apparent weight of a 66-kg person in your car as you pass over the ...

*Saturday, March 25, 2017 by ani*

**PHYSICS QUESTIONS**

Two springs, with force constants k1=175N/m and k2=270N/m, are connected in series, as shown in (Figure 1) .When a mass m=0.50kg is attached to the springs, what is the amount of stretch, x?

*Saturday, March 25, 2017 by anonymos*

**physics**

A water main with a radius of 0.15 m contains water with an average velocity of 3 m/s .What is the flow rate in the water main?

*Saturday, March 25, 2017 by Maha*

**physics question**

When you take your 1700-kg car out for a spin, you go around a corner of radius 55 m with a speed of 20 m/s. The coefficient of static friction between the car and the road is 0.88.Assuming your car doesn't skid, what is the force exerted on it by static friction?

*Saturday, March 25, 2017 by anonymos*

**PHYSICS**

When a 8.88 kg mass is placed on top of a vertical spring, the spring compresses 4.54 cm . Part A Find the force constant of the spring. 8.88kg*9.81=87.1128 divided by4.54 =19.187N/CM 0.0001918784141 KN/M IS IT RIGHT? PLS HELP

*Saturday, March 25, 2017 by ani*

**physics homework**

When a mass m=0.50kg is attached to the springs, what is the amount of stretch, x? When a mass m=0.50kg is attached to the springs, what is the amount of stretch, x?

*Saturday, March 25, 2017 by ani*

**physics**

At a playground, a 20-kg child sits on a spinning merry-go-round, as shown from above in (Figure 1) . The merry-go-round completes one revolution every 6.2 s, and the child sits at a radius of r=1.8m. a. What is the force of static friction acting on the child? b.What is the ...

*Saturday, March 25, 2017 by silvia*

**Physics**

A ray of light with wavelength 589 nm passes through an unknown material with a velocity of 1.94 x 10^8 m/s. What is the material? I think this problem has something to do with Snell's law, but there is no given angle of refraction so I don't know how to solve it. Thanks!

*Saturday, March 25, 2017 by George*

**Physics**

Ten cars at an intersection are blowing their horns simultaneously, creating a 100 decibel sound in the middle of the intersection. What is the average sound level for each car? 10/100= 10db per car?? Idk

*Saturday, March 25, 2017 by Jared*

**physics**

A 30 ohm resistor is connected in parallel with a variable resistance R. The parallel combination is then connected in series with a 6 ohm resistor and connected across a 120 V source. Find the minimum value of R if the power taken by R is equal to the power taken by the 6 ohm...

*Saturday, March 25, 2017 by Oscar*

**Physics**

A 30 ohm resistor is connected in parallel with a variable resistance R and the parallel combination is then connected in series with a 5 ohm resistor, and connected across 120 volt source. Find the minimum value of R if the power taken by R is equal to the power taken by the ...

*Saturday, March 25, 2017 by Mycah*

**physics**

the Ferris wheel has a diameter of 150m and takes 30min to make a full circle. Determine the speed of ride in m/s

*Saturday, March 25, 2017 by tatenda*

**Physics 2**

α of gold is 14.3x10^-6/C°. The density of gold is 19.3 g/cm^3 at 20℃. Determine its density at 140℃.

*Saturday, March 25, 2017 by Alexa*

**Physics**

A 10 kg mass is hung from 2 light, inextensible strings such that the vertical string is attached to the top of the block at an angle 60 degree and the other string is attached straight horizontally to the adjacent side of the mass. How do we solve the tension in the ...

*Saturday, March 25, 2017 by Nisha*

**Physics**

With the center of a meter stick place on a knife edge balance and a 2N weight hanging on its 100cm mark, where should a 5N weight be placed to keep the meter stick in static equilibrium.

*Friday, March 24, 2017 by Auguis, Jenesa*

**AP physics**

how do i find the Fnet of 3 planets? the 3 planets are also at angled distance from one another(2d).

*Friday, March 24, 2017 by Anthony*

**Physics**

Equation for d. A car has a speed of 17 m/s how long will it take to go 20 m

*Friday, March 24, 2017 by Evaa*

**physics**

Consider a plane pulling up from a downward dive. If the plane has a speed of 85 m/s at the bottom of the dive and the radius of curvature of the dive is 240 m, what is the normal force on a 78 kg pilot at the bottom of the dive? A. 770 N B. 790 N C. 1600 N D. 2300 N E. 3100 N

*Friday, March 24, 2017 by Idali*

**Physics**

Find the distance of the image when an object is placed on the principal axis at a distance of 10 cm. In front of concave mirror whose radius of curvature is 8 cm

*Friday, March 24, 2017 by Rahul*

**Physics-Heat**

Calculate and compare the temperature changes of copper (specific heat of 0.09c/gC) to glass (Specific heat of 0.20 c/gC) when 535 g of each substance are given 1,500c of thermal energy.

*Friday, March 24, 2017 by Anonymous*

**physics**

A typical magnitude of the external magnetic field in a cardiac catheter ablation procedure using remote magnetic navigation is B = 0.080 T. Suppose that the permanent magnet in the catheter used in the procedure is inside the left atrium of the heart and subject to this ...

*Thursday, March 23, 2017 by Sam*

**physics**

four point charges on corners of a square.. top left -1, top right +2, bottom left -2, bottom right -1 ... object in middle is -1 ... which direction will that object move? up, down, left, or right (no angles)

*Thursday, March 23, 2017 by christy*

**AP physics (answer whatever you can)**

how do you find the Fnet of 3 planets? do i find the forces of all the planets on each other and add it up? what if teh planets are at an angled position? 1000 kg car is going clockwise around a curve iwth radius of 30m. coefficient of frction=0.5 if the road was banded at an ...

*Thursday, March 23, 2017 by Anthony*

**Physics**

A half pipe can be thought of as half of a cylinder with radius of 7.00m. If a skater with mass 75.0 kg, starts with an initial velocity of 5.00 m/s at the top of the ramp, (a), what is his velocity at the very bottom of the ramp? The skater then approaches the other quarter ...

*Thursday, March 23, 2017 by Sophia*

**physics**

Two small balls are attached to a rigid rod of mass 2.2 kg that is 6.0 m in length. The first ball has a mass of 2.25 kg and the second ball has a mass of 4.95 kg. (c) What is the moment of inertia of the rod when it spins around its center of mass?

*Thursday, March 23, 2017 by anon*

**physics**

Consider the directions of the velocity and the acceleration vectors of an object in uniform circular motion. A. Both vectors point away from the center. B. The velocity points along the tangent, and the acceleration is zero, since the speed is constant. C. The velocity points...

*Thursday, March 23, 2017 by Idali*

**Physics**

Two point charges that have charge values of 4.0 X 10^-6 C and -8.0 X 10^-6 C, respectively, are separated by 2.4 X 10^-2 m. What is the mutual force between them, given that kC = 8.99 X 10^9 Nm^2/C^2? I got the Felectric as -5.0 X 10^2 N, but I'm not sure if that value is ...

*Thursday, March 23, 2017 by Anonymous*

**physics**

the potential energy of a spring..when stretched by 4 cm is u..when stretched by 20 cm it will ?

*Thursday, March 23, 2017 by mohit*

**Physics**

A 2.5kg block is on 53° inclined plane for which coefficient of kinetic friction is 0.25 and coefficient of static friction is 0.5. Calculate its acceleration given that: (a)it is intially at rest (b)it is moving up the slope

*Thursday, March 23, 2017 by Wwc*

**Physics**

A blue billiard ball with mass m crashes into a red billiard ball with the same mass that is at rest. The collision results in the blue billiard ball travelling with a velocity of v and the red billiard ball with a velocity of 3V. In terms of v and m determine the blue ...

*Thursday, March 23, 2017 by Student12*

**Physics**

Let F1=10i-15j-20k,F2=6i+8j-12k. Find their dot product and the angle between those two vectors

*Wednesday, March 22, 2017 by Anonymous*

**Physics**

A square-shaped loop carries current I. What is the magnitude and the direction of the magnetic field at point P, which is located on the bottom segment of the loop? Each side of the square loop has length d. The answer should be given in terms of d, I, pi, and the ...

*Wednesday, March 22, 2017 by Please help!*

**physics**

A wheels is turned at prequency at 2.0 revelation per second and then is allow to come to rest. If it those so in 30sec ? How far did it turn in aprocess

*Wednesday, March 22, 2017 by Uzairu*

**Physics**

A square-shaped loop carries current I. What is the magnitude and the direction of the magnetic field at point P, which is located on the bottom segment of the loop? Each side of the square loop has length d. The answer should be given in terms of d, I, pi, and the ...

*Wednesday, March 22, 2017 by Alice*

**physics**

a car acclerate uniformly from rest andattains a speed of 40m/sin 10second itcoversa distanceof

*Wednesday, March 22, 2017 by musawwiralam*

**Physics**

Find the centripetal acceleration of a car that rounds an 80 m radius curve at 10 m/s.

*Wednesday, March 22, 2017 by Anonymous*

**physics/maths help damon or steve or scott**

A body moves in a straight line,with initial velocity and uniform acceleration.find how far it travels in 12sec.,given that it travels 246m in the first 6 sec.,and 69m in the last 3sec.find the initial velocity. Please show step

*Wednesday, March 22, 2017 by weryiyemi*

**Physics**

A car is traveling on a level horizontal rode comes to a bridge during a storm and finds the bridge washed out. The driver must get to the other side, so he decides to try leaping it with his car. The side of the road the car is on 21.3m above the river, while the opposite ...

*Wednesday, March 22, 2017 by mark*

**Physics**

A car is traveling on a level horizontal rode comes to a bridge during a storm and finds the bridge washed out. The driver must get to the other side, so he decides to try leaping it with his car. The side of the road the car is on 21.3m above the river, while the opposite ...

*Wednesday, March 22, 2017 by Mark*

**maths**

3. Suppose a bookcase shelf has 5 Mathematics texts, 3 Biology texts, 6 Chemistry texts and 4 Physics texts. Find the number n of ways a student can choose: a. one of the texts; b. one of each type of text.

*Wednesday, March 22, 2017 by roze*

**physics**

Agalvanometer of resistance 25 ohmes shows full scale deflection for current of 10mA, to convert it into 100 V range voltmeter , the required series resistance is

*Wednesday, March 22, 2017 by Ratnesh upadhyay*

**Physics**

A spring is compressed a distance of 'x' stores 500J of energy. How much energy is stored in the spring if it is compressed a distance of 4x?

*Wednesday, March 22, 2017 by kiddo*

**physics**

Considering the factors that affect gravitational pull, in which location would the gravitational pull from the earth be SMALLEST on you? A) visiting friends at the beach B) visiting Santa on the second floor of the mall C) visiting Uncle Chrissy in the Himalayan Mountains D) ...

*Tuesday, March 21, 2017 by Lily*

**angular velocity/ physics**

how to find time period in angular velocity if body is equal to twice of the radius of the gravity

*Tuesday, March 21, 2017 by muskan*

**angular velocity/ physics**

in 10s a fan rotates 500 rotation times angular velocity is

*Tuesday, March 21, 2017 by muskan*

**Physics**

How long does it take a car to change it velocity from 15m/s if it accelerarate uniformly at 5m/s square?

*Tuesday, March 21, 2017 by Thomas Asiedu*