Math/Physics

208,897 results, page 45

physics

what is the mass of a vehicle traveling at 25 km/hr with a kinetic energy equal to 1 x 10 to the 4th power J?

PHYSICS

A girl rows 10 km downstream in 2 h. Her return trip takes 3 h. How fast is the current. in km/

Physics

An airplane with an airspeed of 50km/h lands on a runway where the wind speed is 30km/h .

Physics

Determine the displacement of a plane that experiences uniform acceleration from 77 m/s to 110 m/s in 16 seconds.

physics

Find the mass of 0°C ice that 10g of 100 °C steam will completely melt

Physics!

How much impulse stops a 46-kg carton sliding at 3.0m/s when it meets a rough surface?

physics

A 60 kg of sprinter accelerates from rest at 2.5 m?s^2 East for 4s. What force is acting and what is the final speed?

physics

If the electron experiences a force of 5.6 x 10-6 N, how large is the field between the deflection plates?

Physics 1

If you see an object rotating, is there necessarily net torque acting on it? Explain

Physics 1

What torque is needed to accelerate a 70Kg disk with a 20 cm radius from rest to 10 rad/s?

Physics

The maximum kinetic energy of a mass-spring system in SHM is equal to

physics

What is the magnitude of the acceleration of anelectron in a 2200 N/C electric field?I want the solution to this problem.

Physics question

Does the crest of a wave usually have a larger amplitude than the trough?

physics

10 kg of ice at -4 C is dropped into 15.1 kg of water at 36 C. What is the final temperature of the mixture? T_final =

physics

Calculate the gravity on a planet using a pendulum that has a period of 2.45 s having a length of 1.25 m.

physics

What is the maximum walking speed of an adult man whose legs are each 0.90 m long?

physics

I weigh 130 pounds, so how much would I weight on a neutron star?

Physics

. A weightlifter lifts a 76.0 kg barbell 2.60 m 20 times in 1.50 minutes. What is his power output (a) in watts and (b) in hp?

Physics

Show that the x-component of the tension force Fc in terms of its magnitude Fc is given by -0.3420 Fc

Physics

A body is thrown vertically upward with initial velocity 9.8m/s what height it will attain ?

physics

on a trip a car covers 42.3 miles in 40.0 minutes. find the average velocity in m/s and km/hr

physics

a pendelum in a fathers clock measures .90m from the support to the centerof the bob

physics

a body of mass 40kg walk to a step in 40. find the kinetic energy

physics (motion)

the initial velocity of a particle is u (at t=0) and acceleration f is given by at.which relation is valid: (a)v=u+at^2 (b)v=u +at^2/2 (c)v=u+at (d)v=u

physics

Which of the following sets of forces acting simultaneously on a particle keep it in equilibrium?

physics

what is the resultant of two 65N identical one acting easterly and the northerly

physics

A tank has a length of 0.18 m, a width of 0.78 m, and a height of 0.44 m. If it is filled with water, how many kilograms does it weigh?

physics

A tank has a length of 0.18 m, a width of 0.78 m, and a height of 0.44 m. If it is filled with water, how many kilograms does it weigh?

Physics 2

the microwave protion of the spectrum has wavelengths ranging from 1 mm to 1 m. find the corresponding frequency?

physics

Compare the work that a 22-kW car engine does in 60 seconds if its efficiency changes from 100% to 75%.

Science

What is the formula used for finding the gravitational pull of a particular mass in physics?

Physics

How is the Sky Screamer at Six Flags an example of Newton's First Law?

physics

A standard 1 kilogram weight is a cylinder 48.5 mm in height and 52.0 mm in diameter. What is the density of the material?

Physics

Find the attractive force bet a 50 kg girl and a 60 kg boy, if they stand 2.00 m apart.

Physics

A baseball goes from zero to 37 m/s in 0.177 m/s. What is its average acceleration? Answer in units of m/s^2.

Physics 11U

can a initial velocity from the average acceleration formula (Aav=Vf-Vf/t) be negative?

physics

When sand is poured on a rotating disc what happen to its angular velocity ? explain

physics

What is the pressure exerted on the ground by a cube which has a weight of 600N and a side of 1m2

Physics

A swordfish swims at 2.46km/h.How far has the fish traveled after 2050s?

physics

Calculate the distance Michael will travel if he maintain an average speed of 9.4 m/s for 2.2 seconds.

physics

Calculate the distance Michael will travel if he maintain an average speed of 9.4 m/s for 2.2 seconds

Physics

If a car increases its speed from 5 m/s to 25 m/s over 40 seconds. what is the acceleration? Give the unit.

physics

Find the final speed of the train assuming no friction. Answer in units of m/s

physics

A plane cruising at 247 m/s accelerates at 28 m/s 2 for 8.7 s.How far will it have traveled in that time?

physics

draw the following position vectors, find the displacement and present it on diagram. di=2 m df=5m di=3m df= -4m

Physics

A 700 kg plane is traveling at 90 m/s at an altitude of 1500 m. What is the total mechanical energy?

physics

Which parameter of a projectile depends on the horizontal as well as the vertical component of velocity of projection?

Physics

gazelle traveling 200 m/s is launched at a 40 degree angle with respect to the horizontal.

Physics

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

physics

if a load 1kg streches a cordby 1.2cm.what is the force constantof the cord?

Physics

How fast is an object traveling after 3seconds if its terminal velocity is about 35 m/s.?

physics

Calculate the momentum of a 0.1 kg rifle bullet traveling 500 m/s. Answer in units of kg•m/s

Physics

What's the difference between Inertia and Impulse? Because the definitions sound really similar.

Physics

A projectile is shot straight up from the earth's surface at a speed of 1.20 x 104 km/hr. How high does it go?

Physics

How can you demonstrate that water is denser than ice without weighing them? What is the principle involved?

physics

Two point charges, each 6*10-5 C, are separated by 30 cm. What is the electrostatic force produced by this arrangement?

physics

How much work is required to accelerate a 0.145 kg baseball from rest, to a speed of 38.7 m/s?

physics

A person can jump to a height of 1.5m on surface of earth. Find the velocity with which he jumps.

physics

What is the distance from the earth's center to a point where your weight would be 1/25 of what you weigh at the surface?

Physics

How fast would a 4.8 kg object slide down a frictionless incline of 10.3 degrees?

Physics

A car slows down from a speed of 24.0m/s to rest in 9.0s, How far did it travel in that time?

physics

What percentage of the takeoff velocity did the plane gain when it reached the midpoint of the runway?

physics

state the precision of the measured quantities 1. 353g 2. 6.00cm please explain

Physics

If a 65 kg sprinter can accelerate from a standing start to a speed of 12 m/s in 3 s, what average power is generated?

physics

How much work must be done to stop a 1070 kg car traveling at 111 km/h?

Physics

How do I find the recoil velocity of the earth immediately after the popper popped?

Physics

A car speeds up from 12 m/s to 20 m/s in 6.4s.If its mass is 1200 kg,what force must its engine provide ?

physics

What happens if we use water instead of kerosene in joules calorimeter experiment

Chemistry and physics

What causes a red glow when the iron and sulphur mixture is heated?

physics

What is the force a rock exerts if it's mass is 36,000 kg and the acceleration due to Gravity is 9.8 m/s2

Physics

Which object had more potential energy when it was lifted to a distance of 10 meters?

physics

Find d electrostaticforce of a q1 to other charges.express ur answer as magnitude n direction

physics

a stone is thrown upward with a speed of 24.0m/s how fast is it moving when it reaches a height of 13.0m?

physics

A body accelerate from rest at (2m/s square) calculate its velocity after travelling 9m

physics

What is the force on the charge located at x = +8.00 cm in Figure 17.40(a) given that q = 5.00 n C and a = 7.00? (The positive direction is to the right.) N

physics

If a bicycle moves 20m what is the angular displacement in degrees, revolution and radians?

Physics

what is the mass of the toy truck if the force of friction holding it in place is 18.5N u= 0.2 at 30 degrees

Question

Are there any physics teachers on this site that can help? I've posted many questions on here but none of them get answered.

physics

an aluminium sphere of 20cm diameter is heated from 0¡ãc to100¡ãc. what is the change in its volume?

physics

Calculate the coefficient of kinetic friction for tyre rubber on the road surface.

Physics

What is the fundamental frequency on a 5 m rope that is tied at both ends if the speed of the waves is 24 m/s?

physics

A spaceship has a momentum of 20,000 kg·m/s to the left; its mass is 500 kg. What is the magnitude of its velocity?

physics

A man walks 5.0m due east and then 10.0m N30oE . Find his resultant displacement

Physics

90.0g of copper (c=390J/kg*oC) at 80.0°C are added to 270g of water at 20.0°C. What is the final temperature of the mixture?

physics

find the no. of electron which must be removed from a conductor so that it requires a charge of 3.2 microC

physics

A 3 kg book is lifted 5 meters above the floor for 250 seconds. What is the work done?

Physics

What is the significance in the observation of discrete spectral lines in the emission spectrum of hydrogen??

Physics

Would a feather have more air resistance than a lump of lead?

Physics

what is the northward and eastward components of a 550 kph velocity of an airplane going NE?

physics

A stone is dropped from a height of 4.5m.What will be the distance travelled by it during the last second of its fall?

physics

A golf cart has an acceleration of 0.4 m/s². What is its velocity after it has covered 10 m starting from the rest?

Physics

What distance does Anna covered by running on a circular track of length 500m?

Physics

The speed of a train increased from 20 mi/hr to 30 mi/hr in a distance of 500 ft. Calculate the average acceleration in ft/s2

Physics

A 2000 kg starts from rest and gains a velocity of 20 m/s in 5 s. What force wad applied on it?

physics

The sensitivity of a galvanometer of resistance 990ohm is increased by 10 times.The shunt used is??

physics

How long does it take the horse to cover the first 35.0 m of the race? acceleration is 3.00m/s^2

PHYSICS

two equal masses of 12kg each are 2m apart. WHat is the gravitational force between them?

physics

velocit of gas molecule is 3m/s at 1000k. at what temperature velocity becomes 12m/s?

Physics

how much heat is needed to vaporize a 400.0 g of liquid water at 310.0 K?

physics

At what angle with the north would he have to walk? Answer in units of ◦ .

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