# 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 ◦ .