Math/Physics

209,467 results, page 42

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

physics

a 1200 kg car goes from 15m/s in 16s. What is the average force acting on it?

physics

a car starts from rest and accelerates for 7.8s with an acceleration of 2.3 m/s squared. how far does it travel

physics

A bus slows down uniformly from 79.6 km/h (22.1 m/s) to 0 km/h in 15 s. How far does it travel before stopping?

physics

Any object that moves through the air (or space) under the influence of gravity is...?

physics

If a car moves at 36km/h accelerate uniformly at 4m/s calculate it velocity in 2 seconds.

physics

Name two factors that dertermine the quality/timbre of a musical note.

physics

Name two factors that dertermine the quality/timbre of a musical note.

physics

a plane stops from 250 mph in 25 seconds. Calculate the planes acceleration

physics

A project is fire at angale of 45 with x-axis with the K.E 100J what is its K.E energy at maximum height?

physics

A bus that is traveling at 31.0 km/h, speeds up at a constant rate of 3.7 m/s2. What velocity does it reach 6.8 s later?

physics

into which part of the fridge-freezer will the rate of heat transfer be greater?

physics

Discribe the phase change that took place in the solid between the time t1 and t2?

physics

A man walks 15m north then 20m at 32° E of N and then 11 m at at 15° S of W determine his net displacement

physics

A man walks 15m north then 20m at 32° E of N and then 11 m at at 15° S of W determine his net displacement

physics

True or false, the acceleration of an object and the net force acting on it are proportional.

PHYSICS

Two vectors and have magnitude A = 2.90 and B= 3.00. Their vector product is A X B= -4.91 + 2.08. What is the angle between A and B?

physics

A 62.0-kg runner has a speed of 4.90 m/s at one instant during a long-distance event.

Physics

Two point charges, +3.90 ìC and -7.50 ìC, are separated by 3.30 m. What is the electric potential midway between them?

physics

The Earth moves toward you through what distance? (Assume the seat is 45.0 cm high.)

physics

Find the resultant of two vectors 7N and 8N inclined at an angle of 65 degree to each other

Physics

At what projection angle will the range of a projectile equal to 5 times its maximum height?

physics

is it possible to launch satelite whìch rotates just above kathmandu?

physics

what is net force acting on the ball after attaning terminal velosity?

physics

a bag weighing 9.4kg is dropped 1m onto concrete, what is the impact force in kg

physics science

if you wish to warm 95 kg of water by 20.0c for your bath how much heat is required

physics

a 1540 kg truck is traveling at 95 km/hr. what average force is required to stop in 10 seconds

Physics

When a quarter, a nickel, a penny, and a dime are flipped; what are each of their revolutions per minute?

physics

Determine the normal force for a laundry basket with a mass of 4.3 kg in each of the following situations

physics

explain why air moving over an object can increase its rate of cooling.

physics

What is the total force on the bottom of a swimming pool 20.5 m by 8.0 m whose uniform depth is 2.1 m?

physics

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

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

By what distance must two charges of +2 C and +10 C be separated so that the repulsive force between them is 3.70*10^10 N?

Physics

What is the age in years of a bone in which the ratio 14C/ 12C is measured to be 2.3×10^−13?

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