Math/Physics

211,502 results, page 34

physics

What force is required to accelerate a 90kg bike to 20 m/s in 15 sec? I need to know HOW to do it!

physics

With acceleration of 2500 m/s2, how long will it take to rreach speed of light

physics

Calculate the mass of the Earth, if it had a radius of 3000 km and a gravity of 6 m/s^2.

physics bob

yeah im really confused. is there any way i can pay you to be my tutor

physics

A car that decreases its speed from 100 km/h to 20 km/h undergoes ______ acceleration.

physics

express the angular velocity of the second hand on a clock in rev/hr

Physics

How do you calculate the energy needed to heat 4 kg of water from 25oC to 45oC?

Physics

A football is thrown at 14.0 m/s at an angle of 35.0 degrees. How far away does it land?

Physics

How long would it take (in seconds) to travel 1 km at a speed of 100 km/h?

physics

A 5 kg block of average density .625 kg/m^3 has a volume of about _____ cu. m

physics

A 5 kg block of average density .625 kg/m^3 has a volume of about _____ cu. m

Physics

You are standing 0.75 m from your bathroom mirror in the morning. How far away is your image from you?

physics

how long does it take to do 432 joules of work with 75 watts of power?

physics

if 478 watts of power are used in 14 seconds, how much work was done?

Physics

A 3.5 kg body accelerates from rest to 20 m/s in 5 s. Calculate: A its acceleration B the force required.

Physics

Why does tension in a rope increase as the rotational speed of a ball increases?

11th grade physics

A car slows down from +32 m/s to +8 m/s in 4s. Calculate the acceleration .

Physics

The 2010 Mustang GT accelerates from 0 to 60 mph in 5.2 seconds. What is the acceleration rate? in m/s/s?

physics

what happens to the gravitational energy of a firefighter when he slides down the firepoles?

physics

What force is necessary for a person to hold a 50 kg mass over their head?

physics

What force is necessary for a person to hold a 50 kg mass over their head?

Physics

An arrow is shot from a bow at 42 m/s at 70 degrees what is the horizontal and vertical components

physics

If 53 W of power are exerted and the amount of work done is 7 N-m, how much time did it take?

Physics

Describe Robert Millikan's experiment and what significant info he learned?

physics

if you exert a force of 500 N to walk 4 m up a flight of stairs in 4 s, how much

physics

pls show answers and work with the questions i have posted.

physics

What is the mass of a marble cylinder with a diameter of .42m and a length of 1.25m?

physics

if a wooden beam is 30 x 20 x 500 cm. and has a mass of 150 kg. what is the density of the wood

physics

what is tangential velocity of the earth as it travels in its orbit around the sun?

Physics

Calculate the volume of a spherical balloon which has a surface area of 0.0793 m2

physics

Calculate the number density of strontium titanate (SrTiO3), ρ = 5.12 g cm -3

physics

What is the height of 3.0 meter ladder leans against a wall 37 degree.

Physics

What are the components of a vector of magnitude 1.5 m at an angle of 35 degrees from the positive x-axis?

Physics

Show that work done in a wire, E=YAsqr(e)/2l, explainthe symbols. pls help.thanks

Physics

a sled is capable of reaching speeds of 450 m/s in 1.82 s then stopped in 1.92 s what is the acceleration

Physics

What is the efficiency of an athlete who consumes 3000kcal of food and does 2.5 x 10*6 J of useful work?

AP Physics B

What's the equation to find the maximum height after a spring decompresses?

physics

Suppose that you have a circle with a radius of 4.02 ± 0.39 m, what is the calculated uncertainty in the area?

physics

Carrying out the following mathematical manipulations: (5.78 +/- 0.04)^2 How do you set this problem up?

Physics

If a 75-kg skater starts his skate at 8.0m, at his lowest point (height = 0), what is his velocity?

physics

A car has an acceleration of 16 pc/y2. This value can be CONVERTED into which of the following units?

physics

what is the kinetic energy of a 200 g bullet travelling at a velocity of 400 m/s?

physics

how does temperature affect the time it takes to reach thermal equilibrium?

physics

a car accelerates from 5 m/s to 21 m/s at a rate of 3m/s^2 how far does it travel while accelerating

physics

there is any peak shift between bulk and nano materials in xrd.

Physics

Calculate the magnitude of the potential difference between points a and b in the figure if R1=2.36 Ù, R2=4.29 Ù,and R3=10.08 Ù.

Physics

If the amplitude of a sound wave is quadrupled, by what factor will the intensity increase?

physics

the kilowatt-hour is a unit of: force, work, power, or time?

Physics

How many calories are released when 3 grams of 100º C steam turns to 0º C ice

physics

A mass is attached to a string and then dropped. What is its velocity after 5 sec?

Physics

How much work is done in accelerating a 2000 kg car from rest to a speed of 30 m/s?

Physics

A rock is dropped from a height of 2.7 m. How fast is it going when it hits the ground?

PHYSICS

Determine the equivalent capacitance between A and B for the group of capacitors in the drawing. Let C1 = 12 µF and C2 = 4.0 µF.

physics

how high does a stone rise if it initially thrown at a rate of 15m/s?

physics

traveling at 27.78 m/s with a deceleration rate of 5m/s squared.....How long will it take you to decelerate to 0.

physics

traveling at 27.78 m/s with a deceleration rate of 5m/s squared.....How long will it take you to decelerate to 0.

physics

Three charges, +2.5 µC, -4.3 µC, and -6.0 µC, are located at (-0.20 m, 0.15 m), (0.50 m, -0.35 m), and (-0.42 m, -0.32 m), respectively. What is the electric field at the origin?

physics

Three charges, +2.5 µC, -4.3 µC, and -6.0 µC, are located at (-0.20 m, 0.15 m), (0.50 m, -0.35 m), and (-0.42 m, -0.32 m), respectively. What is the electric field at the origin?

physics

what can you say about the forces on a brick lying still on the floor?

physics

At what distance (in m) from a 3.8 mC charge is the electric potential equal to 32 V? (k = 9 x 109 Nm2/C2)

physics

if the initial velocity is .05 m/s and its final is 1.3 m/s then how much energy is lost to friction

physics

A hunk of cast concrete with a weight of 10 N will float if it displaces 10 N of water.

physics

How much voltage is there in a circuit with a resistance of 12 ohms and a current of 3 amps

physics

state 8 object each used in sport and welfare,which may be considered as projectile

physics

Why is it impossible for a material to have an index of refraction less than one

physics

How does pressure work as a restoring force to create a sound wave?

science physics

describewhat is an importance of microscope to mankind it's urgent please help?

Physics

A block of mass 5kg is lifted 2m in 3sec. Find the work done.

physics

what is the speed of light moving through a medium of index refraction 2.45?

Philosophy

In what ways can we say that quantum physics both is and is not classical science?

Physics Class

The equation describing the motion of an object is y=0.8cos(4.2t+0.32). What is its period?

physics

what is the gravitational force on a 60k person on the earth, due to the moon?

physics

if you kick a football at a 30 degree angle, how many seconds is it in the air, and how high does it go

PHYSICS !!!!!!!!!!!!!!!!!!!!!!!!!!!!

a wave has a frequency of 2 Hz. find its period ? please show work.....

physics

what is the diameter if a 1.00m tungsten wire whose resistence is 0.22 ohms?

physics

what is the diameter of a 1.00 m length of tungsten wire whose resistance is 0.22 ohms?

Physics(Please Help!!)

how do you solve the following equation: 77.18 kg* 9.81* 5.83 divided by 4.37 and what does the asterisk stand for

physics

Can a metal sphere of radius 1cm hold a charge of 1coloumb

physics

How will changing the charge change the electric field strength at a distance?

Physics

Using the Bohr model of hydrogen, find the linear momentum, when n=3.

physics

What emf is required to cause 12 amperes to flow through a resistance of 7.2 ohms?

physics

i need to make a working model on the applications of electric generator

physics

when you peddle a cycle, it goes fowrward, when you backpeddle-nothing happens. why?

College Physics

What is the momentum of an automobile (weight = 9700 N) when it is moving at 36 m/s to the south?

physics

What is the momentum of an automobile (weight = 9800 N) when it is moving at 36 m/s to the south? magnitude

physics

A body of mass 20kg dropped from a height of 2m calculate the workdone?

physics

What current flows when a 40 v potential difference is imposed across a 1.8 kÙ resistor?

Physics

True or False Light is both a mechanical wave and a particle

Physics

What hanging mass will stretch a 1.9-m-long, 0.54 - diameter steel wire by 1.2 ?

Physics

If 60 Cal. are added to 6 g. of iron at 20 degrees Celsius what is the final temp.

physics

A BODY THROWN UPWARD ALWAYS FALLS ON THE GROUND ,EXPLAIN IT?

physics

two velocities each 5 ms-1 are inclined to each other at 60 degrees find the resultant

physics

A piece of metal has a density of 0.20g/cm^3.what is the volume in cm^3 of a 1g sample of a substance?

Phys Science

ok i posted it twice and no one has yet to help me about my physics

Physics

All the formulars for solving motion under gravity and waves

physics

how to explain the relationship between the mass of the rotating object and its period?

physics

one electron travels twice as fast as another. Which has the longer wavelength?

physics

How much work is done when a mass of 30N is lifted vertically through 6m

physics

A bus traveling at 30.0km/h accelerates at a constant 3.5 m/s^2 for 6.8s. what is its final velocity?

physics

how do you find a becquerel in a radioactive element without a radiation meter?

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