# physics please HELP !

74,755 results, page 52-
## physics

A drag racer accelerated from 0 to 475km/h in 4.88 s. Assuming a constant acceleration, how far did it travel? -
## physics

2) The weight of tank is 50 000 kg, area of his belts is 5 m2. What pressure acts on the ground? -
## Physics

A tennis ball is thrown up in the air. It stays there for 12.1 seconds how fast did you throw it? -
## physics

how long does a car with an acceleration of 2.0 m/s^2 take to go from 10m/s to 30m/s?and show the solution how do you get the answer. -
## physics

if a teacher wanted to demonstrate mass in the classroom, which of the following objects should she use? a ruler or an eraser -
## physics

2) The weight of tank is 50 000 kg, area of his belts is 5 m2. What pressure acts on the ground? -
## physics

2) The weight of tank is 50 000 kg, area of his belts is 5 m2. What pressure acts on the ground? -
## Physics

Calculate the tangential speed of the earth around the sun (assuming a circular orbit). -
## physics

2) The weight of tank is 50 000 kg, area of his tracks is 5 m2. What pressure acts on the ground? -
## Physics 1

(II) How close to the edge of the 20.0-kg table shown in Fig. 9–47 can a 66.0-kg person sit without tipping it over? -
## Physics honors

If a racer runs at an average speed of 7m/a how far will she run in 1 min 45 seconds? -
## physics

An airplane starts from rest and accelerates at 11.5m/s^2. What is its speed at the end of a 655m runway? -
## Physics

a westward force of 20 N acts on a 2.0 kg object moving eastward at 60 m/s for 2.0 s. What is the resulting velocity? -
## physics

vander waal b for oxygen is 32 cm3/mol compute the diameter of o2 molecule. -
## Physics - projectile

a ball is thrown straight up at 50 m/s. What speed will it be when it returns to the thrower's hand? -
## Physics

A polar satellite is launched at 850 km above earth.find its orbital speed -
## Physics

What does shifting the phase between the sources in a double slit experiment do to the interference pattern? -
## Physics

How would you change the following Galilean transformation equations in the case where a frame was moving both in the x and the y direction? (Use the following as necessary: x, y, z, Vx, Vy, t.) x' = y' = z' = t' = -
## Physics

A ball is allowed to freely from certain height.It covers a distance in 1st second equals ti: A)2g B)g C) g/2 C)none -
## physics

What average power is required for a runner with a mass of 80 kg to reach a speed of 8.2 m/s during a time of 1.8 s? -
## physics

The speed of a train increased from 15 mi/hr to 25 mi/hr in a distance of 500 ft. Calculate the average acceleration in ft/s2. -
## Physics

If the period of the moon were 31 days while its orbit radius 3.8x10^8m, what would the mass of the Earth be? -
## Physics

Where should most of the mass be for an industrial fly wheel? Why? can't find any thing about this in my book. need help answering this. -
## physics

find the maximum voltage that can be appliedto a 8 k ohm resistor rated 0.50 watt? -
## physics

expressions for the force experienced by the charge when it enters the magnetic field at an angle? -
## physics

find the maximum voltage that can be applied ti 8 k ohms resistor rated 50 Watt? -
## Physics

What is the direction of force of friction on a bicycle on front and back wheel while paddling? -
## physics

Two masses are hanging over a frictionless, massless pulley as shown blocks_pulley_aMass m1 is 5.0 kg and mass m2 is 7.0 kg -
## Physics

Which force acts opposite of the direction of displacement of the object? I think it would be friction...but could it be spring? -
## physics

A subway train is designed with a maximum acceleration of +0.17 m/s2, which allows for both passenger safety and comfort. -
## physics

calculate the impulse to stop a 1500kg car moving 90kmper hours -
## Physics

what do you call the source of an intense narrow beam of coherent monochromatic light? -
## Physics

Does the de Broglie model assert that an electron must be moving in order to have wave properties? -
## physics help

How much energy must be removed from a 200g block of ice to cool it from 0C to -30C? What is the equation for this? -
## physics

How far will a car moving at 50 miles an hour travel in the time it takes to sneeze? -
## physics

The mass of an iron cube having an edge length 1.8 cm is 70 g. Find itd density. -
## physics

what is the magnitude and direction of the electric field 20.0 cm cm directly above an isolated 33.0 10 neg6 c charge? -
## physics

Is there a way to calculate the moment of inertia of a hanging mass (3.1 kg) without length & width dimensions? -
## physics

calculate the total area of the walls of a room 5m long 4m wide and 2.5m high -
## Physics check

In 1906, J. J. Thomson won the Nobel Prize for the discovery of the ..... electron? -
## short physics question

What is the significance of the fact that both the horizontal force and motion are both forwards? -
## physics

A football is kicked with an initial velocity v=9i+12j. Find the speed in (m/s) of the ball after 2.4s A) 9.2 B) 10.8 C) 12 D) 15 -
## physics

What is the gravitational potential energy of a ball with a weight of 72 N when it is sitting on a shelf 1.4 m above the floor? -
## physics

Consider a particle with initial velocity that has magnitude 12.0 m/s and is directed 60.0 degrees above the negative x axis. -
## physics

find the maximum voltage that can be applied to a 8 kohm resistor rated 0.50 Watt? -
## physics

What are the dangers associated with electricity in your home? What can be done to limit or prevent the possibilities of dying or getting hurt? -
## physics

Can an adult male be rescued from a fall by tying a rope to a car's axle? -
## Physics

An object is thrown upwards with a speed of 14.0 m/s. How long does it take to reach its maximum height -
## physics

if an object is pushed along a rough horizontal surface and moves at a constant velocity, then... -
## Physics

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

a 1000 kg car with an average power of 100 kw accelerates from 0 to 50 m/s. how long does it take to accomplish this -
## physics

The three vectors in the figure below have magnitudes a = 2.45 m, b = 3.15 m, and c = 15.0 m and angle θ = 36.5° find the x and y component of vector a -
## Physics

how high does a stone rise if it is initially thrown at a rate of 15m/sec -
## physics

A stone is dropped from a ledge 45m high. What will its speed on reaching the Earth be? -
## Physics

A car is traveling North. In which direction are the wheels turning. This is under the torque chapter -
## 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 body travels 200 cm in the first two second and 220 cm in the next 4 seconds.what will be the velocity at the seventh second from the start. -
## physics

In the ideal case of zero resistance, a ball rolling on a level surface will accelerate -
## physics

The three vectors in the figure below have magnitudes a = 2.45 m, b = 3.15 m, and c = 15.0 m and angle θ = 36.5° find x component of vector a -
## Physics

the mass of an airplane is 1.81x10^5 kg. if the gravitational potential energy is 3.78 x 10^7 J, how high did it fly? -
## physics

calculate the impulse necessary to stop a 1500 kg car travelling at 90km/hour -
## College physics

To what temperature will 7700 J of heat raise 3.0 kg of water that is initially at 10.0 degrees C? -
## physics

Devise a method for measuring the coefficient of friction between two surfaces using an inclined plane -
## physics

if a bus travels north with a constant velocity of3m/s, what is the displacement after 15 seconds? -
## Physics

Find the force necessary to stop a 900 kg jetta traveling at +25 m/s in a time of 5.0 seconds. -
## physics

What is the downward force on a ball with a mass of 7.5 x 10^-1 kg thrown in the air due to gravity? -
## Physics

If you are driving 100km/h along a straight road and you look to the side for 1.9s , how far do you travel during this inattentive period? -
## physics

If you are driving 100 along a straight road and you look to the side for 1.9 , how far do you travel during this inattentive period? -
## Physics

What is the instantaneous speed in m/s at the 10 s mark for a car that accelerates at 3 m/s(squared) from a position of rest? -
## physics

The equation y=5sin(3x-4)where y is in millimeters x is in metres and t is in seconds,represents a wave motion -
## Physics

Find the longest wavelength by resonating air in 20 cm tube which is opened both ends -
## physics

How long would it take for a stone to fall 250m traveling at a speed of 10m/s squared? -
## physics

the value of acceleration due to gravity is not equal to 10m,give reasons to support -
## physics

how much power require to pull the water from horizontal distance about 100 feet ? -
## Physics

What is the acceleration experienced by the tip of the 1.5 cm-long sweep second hand on your wrist watch? -
## physics

what is the force of gravity on a mass of o.5kg hanging by a string in a beaker of water -
## physics

A proton is suspended at rest in a uniform field E.Take into account gravity and determine E. -
## 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

An object is dropped onto the moon (gm = 5 ft/sec2). How long does it take to fall from an elevation of 250 ft.? -
## physics

how much work is needed to stop a 20g bullet moving with a speed of 150 ms-1 -
## physics

when looking at a window, you see two reflected images slightly displaced from eachother. Why/ Is it because glass is more dense. -
## physics

Things around you are emitting infrared radiation that includes the wavelength 1.44 10-5 m. What is the energy of the photons? -
## 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

Emily rides her horse 48 km in 3 hours.What is her average speed in kilometers per hour? -
## physics

What is the resistance of a 40 watt light bulb if it is it to full brilliance by a current of .33amps? -
## Physics

coin and a piece of glass are both heated to 60 degrees celsius which will be warmer when you touch it ? -
## Physics

The distance between any two points in a thermometer is 10cm.mercury level is 13 cm .temperature in Celsius? -
## Physics

A car is traveling North. In which direction are the wheels turning. This is under the torque chapter -
## physics

5. What is the electric potential at the center of the square shown in the figure below? Assume that q1 = 1 x 10-8 C, q2 = -2 x 10-8 C, q3 = 3 x 10-8 C, q4 = 2 x 10-8 C and d = 1 meter. -
## Physics

What is electric field required at the tip of sharp needle to ionize air? -
## Physics 1

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

A ball is thrown vertically and reaches a height of 25m. What was it's initial velocity? -
## Physics

a racing car has a uniform acceleration of 4 m/s2 What distance will it cover in 10secs after its start -
## Physics

A truck covers 40.0 m in 9.40 s while smoothly slowing down to final speed 2.35 m/s. Find its accelerations -
## physics

what causes an object to experience an artificial gravitational acceleration in a rotating space station -
## physics

how much work can a 50.0kg wreckin ball traveling at 5.00m/s do when striking a building -
## Physics

what is magnitude of the centripetal if the tangential speed of the car is 2.0m/s and the radius of the wheel is 83m -
## physics

what is the source of error occur in experiment Standing Waves (tuning fork)? -
## Physics

coin and a piece of glass are both heated to 60 degrees celsius which will be warmer when you touch it ? -
## Quick Physics Question

Are both linear and angular momentum conserved in static equilibrium ?