# Math/Physics

207,240 results, page 42

### 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?

### Physics

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

### physics

M.I. of rectangle made by bending rod of length "l" into rect. of 2a and a side.

### physics

how do we calculate the height of a falling ball with a mass of 0.5kg and a velocity of 10m/s.

### physics highe school

Explain the different sections of the graph in as much detail as you can?

### physics

i want to know the force of 3.0 kg weight dropped from 1.0 meter height for breakage testing purpose

### PHYSICS 1A

how much current is drawn by a lamp that has a resistance of 1.2 O when a voltage of 6.8 V is impressed across it/

### science

hello! I need good sites that can help me with my physics class! do you have any ideas??

### physics

If you move 10 km North, 10 km East, and 10 km South, a) What is your displacement? b) What is the total distance you traveled?

### physics

please help me i don't know the answer. What is the mathematical relationship between frequency and wavelength for an EM wave?

### physics

what is the gravitational potential of a 2kg book that is on a shelf 2 meters off the ground?

### physics

What is the concentration (in g/100ml ) of a solution which has 2,8g of NaCI dissolved into 88.0ml of water?

### physics

Identify correct unit of a measurement. Distinguish Between mass and volume

### physics

Calculate the total force of the atmosphere acting on the top of a table that measures 1.9 m by 2.3 m.

### PHYSICS

HOW DO YOU FIGURE OUT A VALUE OF ACCELERATION? CAN IT BE THE SAME AT TWO DIFFERENT TIMES?

### General Physics I

What is the spring constant of a 129N object the vibrates at a period of 4.98s?

### Physics

Find the mass of an object with the acceleration 15m/s^2 when an unbalanced force of 90.0N acts on it

### Physics

A car traveling at 14 m/s accelerates at 2.11 m/s2 for 14 seconds. To the nearest meter how far does it travel?

### physics

How long is a rocket in the air if it is shot at an angle of 55¢ª with an initial velocity of 25 m/s and traveled for 88 m

### Physics

What equation gives the velocity as a function of time for an object with constant acceleration?

### physics

What equation gives the position as a function of time for an object with constant acceleration?

### physics

A hockey puck has no friction on it. It has a mass of 0.28 kg and experiences a force of 48 newtons. What is its acceleration?

### physics

application of and the concept of heat and temperature in technology.please can u give me the link.thanks

### physics

a runner who has a mass of 52 g , has a momentum of 218 kg/m/s along a trail. what is the runners velocity?

### Physics

A car travelled at an average speed of 200km/h. What distance does it cover in 10minutes.

### physics

A force of 2 kg weight acts on a body of mass 4.9 kg .Find the acceleration produced.

### physics

A force of 2 kg weight acts on a body of mass 4.9 kg .Find the acceleration produced.

### physics

What is the rotational speed of the minute hand on a clock? Convert from rad/s to rev/s

### PHYSICS

a 1500kg sports car accelerates from 0 to 30 m/s in 8 seconds. Whaat is the power of its engine?

### physics

What are the factors that affect the quantity of heat needed to raise the temperature of a substance?

### Physics

An object has a mass of 8.99KG and is moving at 2.55 m/s. How much kinetic energy does it have ?

### science physics

When all forces acting on an object are combined together, what's the result known as

### Physics

If a thunderstorm is heard 5 seconds later. How far away did the lightning strike?

### physics

Two vectors and have magnitude = 3.08 and = 3.08. Their vector product is = -5.07 + 2.00 . What is the angle between and

### Physics

Why would you get an e3lectric shock if you flew a kite close to the electricity wires?

### Physics

Why would you get an e3lectric shock if you flew a kite close to the electricity wires?

### physics

A young girl is on a swing that completes 20.0 cycles in 25 seconds. What are its frequency and period?

### Physics

Would it have been possible to make DNA a binary code?

### physics

How long, in seconds, is required for a car traveling at a speed of 32 km/hr to travel 110 m?

### Physics

A ball thrown upward at 60.0 m/s has what speed after 5 seconds? What equation do I use?

### Physics

Find the velocity of a car of mass 1300kg and has kinetic energy of 3800 J.

### physics

A 6.2kg piece of metal displaces 0.80 L of water when submerged.Find its density.

### physics

What is the weight of each of the following masses at Earths surface? A) 25g. B)102kg. C) 12mg

### physics

when a car goes around an 8-km track in 20-minutes. what is the average speed and velocity.

### physics

State how the centripetal force is provided in the case of a satelite orbiting the earth

### Physics

what is your power output if you climb a 2m ladder in 10 seconds? suppose your height is 565N.

### physics

what are the methods of computing the veolicty of a particle in one- dimensona motion from a graph ?

### Physics

Given 435 in^3 of nitrogen at 1340psi (absolute) at 72.0°F. Find the volume at 1150psi at 45.0°F.

### Physics

what 2 properties of carbon make it a good material to use for motor brushes?

### physics

Which of these is not an application of electromagnetic induction? A) Radio.B) None of these.C) Sound.D) Light.E) All of these are.