# Math/Physics

211,502 results, page 42

### physics

Two point charges, +3.63 µC and -5.95 µC, are separated by 1.18 m. What is the electric potential midway between them?

### physics

Two point charges, +3.30 µC and -5.50 µC, are separated by 1.29 m. What is the electric potential midway between them?

### PHYSICS

WHAT IS MAGNITUDE OF NORMAL FORCE IN FIGURE WITH V=+3M/S +10n INSIDE BOX IS 5KG

### PHYSICS

WHAT IS MAGNITUDE OF NORMAL FORCE IN FIGURE WITH V=+3M/S +10n INSIDE BOX IS 5KG

### PHYSICS

Can someone please explain friction. i don't even understand the concepts parts!

### physics

how much energy was released by a 60 kg cannon shooting an 8 kg projectile horizontally at 50m/s?

### physics

lava ball is shot straight up at 28m/s what is speed after 3 seconds

### physics

If your car has a mass of 770 kg, how much force is required to accelerate it forward at 4.98 m/s2?

### Physics

What is the average power output of a weightlifter who can lift 260 kg to a height of 1.9 m in 1.8 seconds?

### physics

Calculate the net force needed to give an acceleration of 0,5m/s to a trolley with a mass of 1,5 kg

### physics

If your car accelerates from rest at a steady rate of 4 m/s2, how soon will it reach 81 km/h (50.3 mph or 22.5 m/s)?

### physics

What is the force of gravity between two spheres that have a mass of 6 kg and are separated by 36 m?

### physics

What is the force of gravity between two spheres that have a mass of m1 =13 kg, m2 = 49 kg and are separated by 35 m?

### physics

A ball is thrown vertically upward at 14.7 m/s. Show that its maximum height will be 11m.

### PHYSICS

A 69.0 firefighter climbs a flight of stairs 22.0 high. How much work is required?

### Physics

A 200N sign hangs and makes a 15.5 angle with the horizontal. What is the Tension in each rope?

### Physics

Is it true that a drop of water can pass through a solid travelling by 1800m/s2?

### Physics

Could a rubber band be used to replace the spring in a Hooke's Law experiment? Why/ why not?

### Physics

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

### Physics

How much work must be done to stop a 1250 kg car traveling at 105 km/h?

### Physics

If an 80-kg sprinter can accelerate from a standing start to a speed of 10 m/s in 3 s, what average power is generated?

### physics

calculate the speed of an 7.3*10^4kg airliner with a kinetic energy of 1.4*10^9J. answer in units of m/s.

### physics

How much work is required to stop an electron (m = 9.11 10-31 kg) which is moving with a speed of 2 106 m/s?

### physics

For S.H.M, a graph of acceleration against displacement gives a slope of 16 unit. The period is

### Physics

Describe how surface area and volume are related in solids? Give an example.

### Physics

Describe how you can determine the specific heat of an unknown metal whose mass is known.

### physics

How much heat is absorbed by an electric refrigerator in charging 2 Kg of water at 15°C to ice at 0°C?

### physics

Determine the resulting temperature when 150g of ice at 0°C is mixed with 300g of water at 50°C

### Physics please help!!

A 12.1 g CD with a radius of 6.16 cm rotates with an angular speed of 31.1 rad/s. What is its kinetic energy?

### Physics please help!!

A 12.1 g CD with a radius of 6.16 cm rotates with an angular speed of 31.1 rad/s. What is its kinetic energy?

### Physics please help!!

A 12.1 g CD with a radius of 6.16 cm rotates with an angular speed of 31.1 rad/s. What is its kinetic energy?

### physics

What happens to the gravitational energy of a firefighter when he slides down the fire poles?

### AP Physics

A car slows down from 18 m/s to rest in a distance of 91 m. What was its acceleration, assumed constant?

### physics

You are driving a car with a power output of 56,000 Watts. How many seconds will it take to go from 0 m/s to 27 m/s?

### physics

The density of a solid ball with a mass of 231 g and a volume of 110 cm^3 is ____ g/cm^3.

### Physics

if the frequency of a particular electromagnetic wave is 4 x 10^14 hertz, what is its wavelength of the radiation in nanometers (nm)?

### Physics

What is a node? i'm supposed to label the nodes in a diagram of a wave but i can't find it anywhere

### physics

the minute hand of a large clock is 2 m long. what is its mean angular speed?

### Physics

If a +q charge is placed at d in the x-axis (x_0<d), what happens to the total electric field in 1?

### physics

how much work is done by an engine using 105 watts of power in 3.2 seconds?

### Physics

If a +q charge is placed at d in the x-axis (x_0<d), what happens to the total electric field in 1?

### physics help!

The displacement of an object is given by y = (4.6 cm) sin 28ðt. (a) What is the amplitude? (b) What is the frequency? (c) What is the period?

### physics

Find the electric field at the folowing radii from the center of this charge configuration.

### physics

if V = (10x-10y)i + 30k find pressure change between points (0,0,0) and (3,1,0)

### physics

What is the value of the gravitational acceleration at a height of 2000 km above the surface of the Earth?

### physics

If a coffee can has a radius of 63.0 cm and a height of 15.8 cm find its volume round to neaerest cm3

### physics

The third longest wavelength in the Paschen series in hydrogen corresponds to what transitions?

### physics

In LCR series AC circuit when does the effective voltage lag behind the current?

### physics

At what speed should an object be projected to reach the maximum range of 200 m ?

### physics

what are the two forces that affect the motion of a child as she comes down a slide?

### physics

What is the wavelength of the peak of the blackbody radiation curve for the human body (T = 310 K)?

### Physics

How much energy is deposited in the body of a 78 kg adult exposed to a 2.9 Gy dose? Please and thank you.

### Physics

What is the acceleration of a proton moving with a speed of 4.3 m/s at right angles to a magnetic field of 2.1 T?

### physics ---- really dnt get this at all

Will the photoelectric effect change for different targets

### physics

How will the current in a wire change as the wavelength of light changes? I have no idea how to do this.

### physics

How will the current in a wire change as the wavelength of light changes? I have no idea how to do this.

### physics

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

### physics

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

### physics

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

### physics

How high could one horse raise a 100N weight (10kg) in 1 second?

### physics

a suitcase weighs 30 kg wt.everytime i weigh it on a spring balance,the reading is different.WHY?

### Integrated Physics and Chemistry

The ____ motion of a star can be determined by studying its spectrum

### Physics

What is the resistance of a 4.00 m length of copper wire having a diameter of 2.00 mm at a temperature of 20 degrees?

### physics

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

### physics

how can you say that thickness of a material varies as it is a constant value. discuss with in 50 words.

### Physics

How do you make a Balloon Car? Is there another way accept just blowing it up and letting it go?

### physics

where would the image of a 4.0 cm tall object that is 12 cm in front of a flat mirror be located?

### physics

What Net Force is necessary to give a 2.0 kg mass initially at rest an acceleration of 5.0 m/s^2?

### physics

the speed of a bullet of mass is 40gram is 216km/h what is the kinetic energy in joule

### physics

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

### Physics

In the photoelectric effect, what happens to the stopping voltage when the light frequency is decreased?

### physics

how is the position of a particle moving along a straight line described by a number

### physics

Which of :acceleration,age,speed,temperature,and velocity are vector quantities? Are any of them scalars?

### physics

A car travels in a straight line for 3.7h at a constant speed of 63 km/h. What is the acceleration? Answer in m/s^2

### Physics

The electric field at the surface of a uniformly charged sphere of radius 6.0cm is 90 kN/c .

### physics

A particle at rest undergoes an acceleration of 2.5 m/s^2 to the right and 3.2 m/s^2 up. What is its speed after 5.9s? Answer in m/s

### PHYSICS

When you have more pulleys does the mechanical advantage and efficiency increase or decrease?

### physics

before ice can form on a lake, all the water must be cooled to?

### physics

Calculate the quantity of heat required to raise the temperature of 2.00 g of water 4.00◦C.

### physics

A tuning fork produces a wave at 280 Hz and with a wavelength of 1.5 m. Calculate its velocity.

### Physics

As a rocket accelerates upward, its thrust remains constant but its acceleration increases. what is the cause of this?

### physics

What's the speed of the Hubble telescope when it is in orbit 598 km above the earths surface?

### physics

What's the speed of the Hubble telescope when it is in orbit 598 km above the earths surface?

### Physics

Question: When a balloon is rubbed with fur, it becomes negatively charged. Explain why?

### physics

A distance runner moves at a constant pace of 4.1m/s. how far (in m) does he move in 30 minutes?

### physics

stone dropped from a tower if steady wind blows in the horizontal direction

### physics

Start from the origin and go east for 80km. Then go north 192 km. Make a drawing.

### physics

what happens when a resistor is used to heat a brass rod and allowed to cool?

### physics

Two vectors A and B are added. Show that the magnitude of the resultant cannot be greater than A+B or smaller than l A-B l.

### Physics

Two point charges, +3.09 µC and -5.65 µC, are separated by 1.19 m. What is the electric potential midway between them

### Physics

A motorist travels 90 km at 120km/h , and 70km at 75km/h . What is the average speed for the trip?

### physics

A baseball goes from zero to 40 m/s in 0.206 s. What is its average acceleration? Answer in units of m/s2

### physics

if a 1 kg rock is thrown at a speed of 20m/s, how much kinetic energy does it have?

### physics

if a ball is thrown into the air at a speed of 22 m/s what is its position after 2.8 seconds?

### Physics

Does an object still possess any kinetic or potential energy at absolute zero?

### physics

A bus that is traveling at 35.0 km/h, speeds up at a constant rate of 3.4 m/s2. What velocity does it reach 6.8 s later?

### physics

Two point charges, +4.00 ìC and -7.00 ìC, are separated by 2.20 m. What is the electric potential midway between them?

### Science: Physics

A circle graph has labeled segments of 5.7%, 21%, 13, and 6%. What % does the unlabeled segment have?

### physics

What is the kinetic energy of a car of mass 1900 kg moving at a constant speed of 21 m/s