# Math/Physics

208,687 results, page 72

### physics

Consider the static equilibrium diagram below. What is the net force acting along the positive x-axis?

### Physics

A bolt requires tightening to a torque of 98 N-m. If a wrench is 28 cm long, what perpendicular force should be applied at its end?

### Physics

a 50 g marble is released from a height 1 m above the floor. Calculate its momentum just before hitting the ground

### physics

What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 10.5 m/s when going down a slope for 3.18 s?

### Physics

are water waves at the beach with a velocity of 1.75m/s and a wavelength of 3.213 and frequency of 1/1.84Hz considered fast?

### physics

two trains are moving towards each other with velocitied u1 and u2 see that the distance between them is x.the condition for them to not collide is

### Physics

What is the momentum of a 54 kg ball just before it hits the ground when it is dropped from a height of 1.4m? What formulas should I use?!

### TVTC

Physics...a diver of mass m drops from a board of 10m above water surface. find his speed at 5m

### physics

A bullet in a gun is accelerated from the firing chamber to the end of the barrel at an average rate of 6.20*10^5 M/s^2 for 8.10*10^-4 s what is its muzzle velocity

### Physics

Inside a metal conductor, why is it not possible to have a static charge configuration if there is a net electric field?

### Physics

How high will you be when you stop rising if you jump upward with an initial vertical speed of 2 m/s? Answer to the nearest 0.1 m, and use g = 9.80 m/s2.

### physics

if two forces 10N and 20N are inclined at angle 60degree to each other. Find the resultant force.

### Physics

A red colored ball tossed upward reaches a maximum height of 3.0m. show that the initial speed is 7.7m/s^2.

### *physics*

what is the smallest time in which a 9.00kW motor can lift a 3500 kg elevator to a height of 9.50m? use 10m/s^2 as g.

### Physics

Determine the stopping distances for a car with an initial speed of 93 km/h & human reaction time of 0.80 s, for an acceleration a=−4.0m/s2.?

### Physics

What is the power of an engine that pulls a 1000kg automobile at a steady speed of 10m/s along a level road?

### physics

suppose that the two person,each of mass 100kg are 3meter a part in outer space.what is the magnitude of the gravitational

### physics

A duck waddles 2.3m east and 7.0m north. what are the magnitude and direction of the ducks displacement with respect to its original position?

### physics

how do you plot T2 2.14, 2.10, 2.08, 2.03, 2,20 and 2.30 and length .445, .54m, .497m, .50m, .53m and .555m on a graph and how do you find the gradient

### physics

Calculate the speed of a satellite moving in a stable circular orbit about the Earth at a height of 4800 km.

### Physics

A car going 50 m/s undergoes an acceleration of 2 m/s^2 for 6 seconds what is the final velocity ? How far did it travel while it was accelerating?

### lighthouse christian college

Wich career can I take when I took english,afrikaans,lo,physics and pure maths?

### Physics

The truck of a passenger car applies brakes at a velocity of 30 m/s and comes to rest 5 seconds later. What is the deceleration?

### AP Physics

How fast (in rpm) must a centrifuge rotate if a particle 6.0 cm from the axis of rotation is to experience an acceleration of 130000 g's

### physics

If you push a box for a distance of one meter with a force of 4,187 newtons How many calories have you used?

### Physics (Heat)

Sitting under the fan on a hot day makes us feel cool.why? Give reason

### physics

three forces of 10N,30N and 50N act at a point at 120° to each other.Find their resultant.

### Physics

What mass must be added to 0.9kg trolly to give it an,acceleration of0.4m² when a 0.6n force is applied to it?

### Physics

How many electrons pass a given point in the circuit in 17 minutes? The fundamental charge is 1.602•10^-19. And the current is 0.526315789

### Physics

How many electrons pass a given point in the circuit in 17 minutes? The fundamental charge is 1.602•10^-19. And the current is 0.526315789

### pure maths, agriculture,life sciences, physics

i want to know what does those subject i choose fall under which career

### physics

calculate the energy evolved when 8 droplets of water of radius 1/2mm each combine into one. where s=0.072N/m.

### physics

calculate the energy evolved when 8 droplets of water of radius 1/2mm each combine into one. where S=0.072N/m

### Physics

Calculate the energy evolved when 8 droplets of water of radius 1/2mm each combine into one where s=0.072N/m.

### physics

a cyclist does work at the rate of 500w while riding. how much force does her foot push with, when she is traveling at 8.0 m/s?

### Physics

is the mechanical energy of a teflon coated block sliding down a rough incline remaining constant?

### PHYSICS:

A boy weighing 350N runs up a flight of stairs consisting of 20 steps each 10 cm high in 10 seconds.what is his power?

### physics

two equal vectors of magnitude 2A are inclime perpendicular to each other find the resultant and direction of vector.

### physics

what is the electric flux through a sphere that has a radius of 2.2m and carries charge of 5.3 micro couloumb at its centre? solution

### physics

How many hour will it take for a Bus to travel 1000 km. If it travels at an average velocity of 80 km/hr. assume constant acceleration.

### physics

A bob of a pendulum 100cm long swings through 20cm,find theta in radian and degree

### physics

Which of the following prefixes will multiply the unit by 1,000? Select one: a. Milli b. Mega c. Kilo d. Centi

### physics

a galvanometer has a resistance 60 ohm and is of 5mA full scale deflection.how would you modify it so as to get 0-10V voltmeter

### physics

a ball of mass 0.1 is thrown up with an initial velocity of 80m/s calculate the potential energy half way up

### physics

please help The power rating of an electric motor which draws a current of 5 amperes from a 240-volt line is? a. 12.0 kW b. 1.2 kW c. 48.0 kW d. 4.8 kW

### Physics

A pan filled with hot food cools from 94°C to 86°C in 2minutes when the room temperaturs is at 20°C .How long will it take to cool from 71°C to 69°C ?

### 11 physics

a20Kg box is suspended from the ceiling by arope that weighs 1Kg . find the tension at the top of the rope.

### Physics projectile

If a body projected vertically upwards, give a graph showing variation in its kinetic energy

### Physics

A car starts to move nd accelerated at 4m/s2 for 8 seconds (u=0 V=32m/s a=4 m/s2 t=8) How fast is it moving? How far does it travel in this time?

### Physics

As the passenger cars are launched from rest at the start, they are accelerated uniformly to a speed of 57 m's (128 mph) in just 3.5 s.

### physics

a stone of mass 50g is released from rest, Calculate it's kinetic energy after 6s from the beginning of the motion

### Physics

A stone is dropped into a bore well 490m deep.after how time,the sound of splash of will be heard

### Physics

A stone is dropped into a bore well 490m deep.after how time,the sound of splash of will be heard

### Physics

When light passes from one medium to another then which of the following parameters may change? Velocity, frequency, colour or wavelenght?

### Physics

Find the speed of a pendulum bob at the bottom of its swing if its initial displacement is 5.34o and its period is 2.534 s.

### physics

A ball is thrown from a height h and another from 2h.find the ratio of time taken by the two balls to reach the ground.

### physics

A ball is thrown from a height h and another from 2h.find the ratio of time taken by the two balls to reach the ground.

### Physics

What is the pressure at a depth of 80 m in the ocean? The density of seawater is 1. 03 × 10 3kg/m3. Please express your answer in units of atm.

### Physics

What is the pressure at a depth of 80 m in the ocean? The density of seawater is 1. 03 × 10 3kg/m3. Please express your answer in units of atm.

### physics

A red racecar accelrates at a constant rate of 5 m/s2. How much time does it take to increase its speed from 50 m/s to 60 m/s? a. 17 s b. 0.058 s c. 0.25 s 2.0 s

### Physics

Two parallel forces of magnitude 4 and 6 newton are acting on a body placed at 4m apart. Resultant force will be

### physics

An object experiences an impulse, moves and attains a momentum of 100 kg·m/sec. If its mass is 50 kg, what would its velocity be?

### physics

A body moves with uniform acceleration with a distance x for 1st sec. What is relation b/w x & y? A) y=24x B) y=16x C) y=12x D) y=8x

### physics

a car travelling at 60km/h uniformly retards for 10s and reaches a velocity of 45km/h. find the retardation.

### PHYSICS

A mass of 2kg is dropped from a height of 3m.Neglecting air resistance,KE of the stone just b4 it hits the ground is ?

### Physics

ABC is an equilateral triangle of side 4.0 cm in a vacuum. There are point charges of 8.0C at A and B. Find (a) the potential, (b) the electric field at C.

### Physics.

An electron in a hydrogen atom is revolving around the proton in a orbit of radius r and velocity v .find the current.

### physics

A cars starts from rest and after 20 seconds its velocity becomes 108 km-1 find the acceleration of the car

### physics

In the figure below, the bar is 2.4 meters long and has a mass of 145 kg. To the nearest newton what is the tension in the wire?

### physics

A cylindrical glass is 15cm long its diameter is 7cm. what volume of milk can be poured in it without spilling

### Physics

A fired bullet sounds is heard after2sec .its speed in air is 340m\sec.what is the distance of sound.

### physics

a simple pendulum has a period of 2.0s and an amplitude of swing 5.0cm.calculate the maximum magnitude of the acceleration of the bob

### Physics

If two springs have their spring constants as k1 and k2 (k1>k2 . When they are stretched by same force what will be the relation between their elongations

### physics

Find the force of gravity (in newtons) on a spacecraft 15100 km above the earth's surface, if its mass is 400 kg

### physics

Calculate the effective value of g, the acceleration of gravity (in meters/second^2), at 8600 km above the earth's surface.

### PHYSICS

A swimmer is capable of swimming at 1.4m at still water.caculate how far downstream will it smim across 180m?

### physics

What is the minimum work in joules needed to push a 1210 kg car 54.0 m up a 12.5 degree incline? (Ignore friction.)

### physics

A particle is drop from a vertical height (h) and falls freely for a time (t) with the aid of a sketch explain how (h) varies with (i) t (ii) t*2

### physics

On a roller coaster, a student experiences an apparent weight of 1250 N while accelerating at 2.3 m/s^2 [U]. What is the students mass?

### Physics

How much energy must be removed from 30 L of liquid water at 0-degree celsius in order to convert it to ice?

### physics

A cube of ice, 28 cm on each side, is melted into a measuring cup. What is the volume of the liquid water? ------cm3

### physics

Probability of getting two heads among 4 coins Complete the columns r Pr rPr (r - r̄)2Pr 0 1 2 3 4 sum

### physics

Probability of getting two heads among 4 coins for r = 0, 1, 2, 3, 4 find values of Pr, rPr, (r - r̄)2Pr and sum of r

### Physics

if a molecules in a solid has a temp of T = hf/2k then what would be the average energy of vibration 1) 0.88kT 2) 0.47kT 3) 0.62kT 4) 0.31kT

### physics

Explain why helicopters need 2 rotors to fly in a straight line. Talking about centripetal force.

### physics hw

Determine the stopping distances for a car with an initial speed of 87 km/h and human reaction time of 2.0 s for the following accelerations. (a) a = -4.0 m/s2 (b) a = -8.0 m/s2

### physics (science)

A body travels from rest with acceleration 8m/s square . Find its velocity when it has covered a distance of 100m

### physics

A small tiny nail may Pierce an inflated Tyre and remain there without pressure reduction.explain

### physics

A passengers jet flies from one airport to another 1,200 miles away in 2.5h .Find its average speed.

### Physics

At what frequency would a capacitor of 2.5 microfarads used in a radio circuit have a reactance of 250 ohms

### Physics

A Man Of Mass 80kg Carry A Load Of Bricks Of 20kg Up A Vertical Of Length 6m Calculate The Workdone.

### Physics

A Man Of Mass 80kg Carry A Load Of Bricks Of 20kg Up A Vertical Of Length 6m Calculate The Workdone

### physics

Find the limiting velocity of a rain drop assuming diameter of 5.0×10^-4m.The density of air relative to water is 1.3×10^-3

### Physics

Name any Margins of error that would happen in the lab "Which path requires the most energy? (gas)

### physics

a car of mass 800kg attains a speed of 25m/s in a second.calculate the power developed in the engine

### physics

A ball is thrown upward with velocity 5m/s calculate total distance covered by it ?{ Using formulae (v)2 -(u)2. =2gs}

### physics

a uniform rod is 1m caring a weight of 100N calculate its tension of the string holding it an the reaction at the hinge

### Physics

A girl of mass 25kg runs up a stress of total height 3.0m.find the work done against gravity.

### Physics

A ball is thrown with a speed of 19m/s and at an angle of 46 degrees. How high does it go above the cliff to the nearest tenth?