# Math/Physics

206,302 results, page 71

### Science Physics

How many Btu of heat must be added to 1200 lb of copper to raise its temperature from 100°F to 450°F

### physics

car doing 60 mph and skids for 52.3 meters what is the speed at end of skid co/friction is 0.693 urgent help please

### physics

a50g ball is hit to roll by a force of 100N.it rolls over 20m.what was its initial speed

### Hurricane Project for Physics Class

1) Please describe the typical path(s) for hurricanes. Is this part of the pattern of convection?

### Physics

A ball starts 1.175 meters off the ground and shot at an angle of 40 degrees with a velocity of 3.2 m/s. Where does it land?

### physics

what is the t shirts vertical componet of its velocity at launch? if it launches straight at 45° above the horizontal plane at 141 /s?

### Physics

A red flower seen in the light of mercury vapour lamp through a green filter will appear?

### physics

with a cart of unknown mass, could you still determine whether its total energy is conserved? explain your reasoning

### Physics

An aircraft landing on an aircrafts carrier is brought to a complete stop from an initial of 215km/h in 2.7 seconds. What is its acceleration in m/s2?

### Physics

An aircraft landing on an aircrafts carrier is brought to a complete stop from an initial of 215km/h in 2.7 seconds. What is its acceleration in m/s2?

### physics

A proton moves with a velocity V (2i - 4 j + k) m / s in a region where the field is given by B = (i + 2 j -3k) T . What is the magnitude of the magnetic force experienced by the load?

### physics

How much power is developed by a jumbo jet that cruises at 250 m/s. When the trust of its engine is 100,000N?

### physics

The mass of a pendulum moves a total horizontal distance of 14cm in one cycle. What is the amplitude of the vibration?

### Physics

The brakes of a bike (with a person) having a mass of 63 kg, reduces it's velocity from 8.5 m/s to 0 m/s in 3.0 seconds. What is the magnitude of braking force?

### AP physics

An object undergoes a displacement x while a force F acts on it. If F does zero work, then the angle between F and x must be

### physics

Calculate the half-life of a radioactive substance that decays by a factor of 3 in concentration every 1 million years

### Physics

Find the component form of ⃗v given a magni- tude of 9 and an angle of θ = 90◦ with positive

### Physics

A block of mass 8.1 kg is pulled to the right by an applied force of 76.2 N. If the acceleration is 0.84 m/s^2, how much friction must be present?

### physics

to view full image of an object 160 cm high, the minimum size of the plane mirror required is?

### Physics

A person weighing 900 Newtons is standing on snowshoes. Each snowshoe has an area of 2500cm^2. What is the pressure on the snow?

### Physics

An object is thrown with speed of 17 m/s at an angle of 550. find the time it takes to reach its maximum height.

### physics

A ball rolls off a 1.40 m high table with an initial horizontal speed of 0.600 m/s. How far will it land?

### PHYSICS

without air resistance maximum range of projectile is obtained with an angle of ???? Can you please fill in the blank THANK YOU

### Physics

Find the potential energy of a system often point charges. 7nC and 2nC separated by 0.03m

### physics

when two lenses of focal length +10cm and -5cm are placed in contact then find the net power ?

### College Physics

A 750 kg rocket accelerates straight upward from the ground at 60 m/s2. What is the force (thrust) provided by the engine?

### Physics

Michael Jordan’s vertical leap was measured to be 122 cm. What was his takeoff speed, and how long would he be in the air?

### fristyear physics

two girls a and b weighting 40 and 30 kg both of them pull 14m held by them.they will meet when covers a distance of?

### physics

a small marble of negligible dimensions and of the mass 1.1kg is placed at a point A of a smooth frictionless circular

### Physics

A baseball is thrown horizontally from a height of 3.6 meters at a speed of 24 m/sec. How far will it travel along the ground?

### physics

A steel ball with a mass of 0.65 kg is swinging in a circle with a radius of 1.3 meters at a speed of 17m/s. What is the centripetal force?

### physics

A motorcycle of mass 350kg has an acceleration of 3m/s when the resistance against motion is 200N.Calculate the force required

### physics

A 4.40kg bucket of water is accelerated upward by a cord of negligible mass whose breaking strength is 74.0N

### Physics

A motor cyclist travelling at 12m/s decelerate at 3m/s(squared)? How far does he travel while coming to rest?

### physics

Why is parallax method not useful for measuring the distances of stars more than 100 light years away?

### physics

A 102-kg man stands in an elevator that has an upward acceleration of 4.1 m/s2. The magnitude of the force exerted by him on the floor is about (g = 10 m/s2):

### 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?

### physics

A rocket is fired with an initial velocity of 200m/s at an angle of 60' to the horizontal.Find (1)the maximum height reached.

### physics

In a tug of war match, each side pulls with a force of 500N, but the rope does not move. How much work is done?

### Physics

Two point charges of magnitude 2.0 X 10^-7 C and 85 X 10^-8 C are placed 12 cm apart .What is the field intensity of each charge at the site of other ?

### Physics

A tyre is suddenly brust when it was pumped to a presure of 4 atm at 20 degree celsius. Calculate the final temperature.

### physics

Compute the electric field about a uniformly charged plane sheet using gauss law.

### 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.