Physics!
74,457 results, page 42

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 xcomponent 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 22kW 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=VfVf/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*105 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 ◦ . 
Physics
prove the following rules if true or false using Boolean algebra (a)A+AB = A+B (b)(A+B)(A+C) = A+BC 
physics
a 2.00 * 10^5 kg lunar landing craft is about to touch down on the surface of the moon 
physics
vander waal b for oxygen is 32 cm3/mol compute the diameter of o2 molecule. 
Physics
A tennis ball is thrown up in the air. It stays there for 12.1 seconds how fast did you throw it? 
Physics
A ball is thrown vertically and reaches a height of 25m. What was it's initial velocity? 
Physics
A stone weighs 34.0 N. What force must be applied to make it accelerate upward at 4.00 m/s2? 
Physics
A stone weighs 34.0 N. What force must be applied to make it accelerate upward at 4.00 m/s2? 
Physics
If a sprinter accelerates from rest at a constant rate of 2.0m/s/s how fast will they be running after 4.0s? 
maths lit,physics,life science n tourism
i don't know which career to choose can you help me ?I'm doing grade 11. 
physics
what is diffraction? When does it occur? Which waves will defract more when passing through an opening? 
Physics 3
A golf ball is hit at 42.0 m/s at an angle of 20° with the ground. How far away does it land? 
Physics
Calculate the momentum of a bullet moving with a velocity of 1000m/s ,if it has a mass of 0.01kg 
physics
It takes 2.75s for the rock to hit the water at 54.45mph, how high is the bridge? 
PHYSICS
WHAT IS THE VELOCITY OF A CAR THAT TRAVELS AROUND A TRACK THAT HAS A RADIUS OF 15M IN 2 MINUTES 
Physics
a 100 N chandelier hangs from the ceiling on 8 chains. What is the tension force on each chain? 
physics
a car is uniformly decelerated from 90km/hr in a time of 10 sec calculate the 2 acceleration 
physics
a mass if 10kg move with a velocity of 4ms1find it kinetic energy.