# Math/Physics

210,322 results, page 39

### Physics

How meny watts need to up the 18kg in 4mtr per 15 second

### physics

What is the effect of increasing the inclination of the track to the acceleration of the rider in the experiment?

### Physics

When a mass is hung from a spring stretches it by 15 cm. What is the period of the oscillations of this system?

### physics

Cylinder water tank 80cms height 1000liters what is its diameter

### physics

If a car has a mass of 400 kg and a velocity of 30 m/s to the east, what is the magnitude of its momentum?

### Physics

Find the centripetal acceleration of a car that rounds an 80 m radius curve at 10 m/s.

### PHYSICS

If that charge is 3.7 μC , by what percentage does the mass of a 31 g comb change during charging?

### physics

What force is needed to accelerate a child on a sled (total mass = 60 kg) at 1.25 m/s2?

### Physics

How much heat is needed to melt 14.3kg of silver that is initially at 44°C?

### Physics

Which of the following wavelengths will produce standing waves on a string that is 1.9 m long? A.1.9 B.3.3 C.3.5 D.95

### physics

a skydiver has amass of 140 kg.at what speed will she have a momentum of 10,000 kg m/s?

### physics 1

what is the peiod of vibrating object which an acceleration of 8.0m/s .when its displacement is 1.0m?what should be the answer?

### physics 1

what is the peiod of vibrating object which an acceleration of 8.0m/s .when its displacement is 1.0m?what should be the answer?

### Physics

A charge q is placed at h distance from the base of centre . Find the flux ?

### Physics

In what part of the electromagnetic spectrum does the wavelength 0.0141 nanometers belong in?

### physics

lighted matchstick brought near the negatively charged electroscope

### physics

Two instances during which the heating effect of current is not required

### Physics

What effect do the following forces have on point? 100N, 30 degrees E of N

### physics

Instances where the heating effect of current is not required. Plssss helllp

### physics

Instances where the heating effect of current is not required. Plssss helllp

### Physics

A car travels at a speed of 70km/h. What distance will it cover in 30 minutes

### Physics

A car travels at a speed of 70km/h. What distance will it cover in 30 minutes

### physics

if a body moves 3m north,then 4m East and finally 6m South.what will be the displacement?

### Physics

Does the speed of sound in air depend on the frequency of the wave? V=[(gamma.RT)/M]^(1/2)

### Physics

A 900 W toaster operates for 2.50 minutes. How much energy does it use?

### physics with algebra

what is the area, and its approximate uncertainty, of a square of side 3.1x10^4 cm?

### physics

A car accelerates from rest at -2.10 m/s2. a. What is the velocity at the end of 4.0 s? b. What is the displacement after 4.0 s?

### Physics

When an object is moving at a normal speed, is it's weight larger than when it's stationary?

### Physics

What’s the specific heat of a material if it takes 6.5 kJ to increase the temperature of a 1.8 kg sample by 6.4 ∘C ?

### physics

Why air pressure in a car tyre increases during driving?

### Physics

Does a ball that is rolled on a floor speed up before slowing down?

### Physics

C:\Users\Kristi\Pictures\Screenshots\Screenshot (691).png

### Physics

When striking, the pike, a predatory fish, can accelerate from rest to a speed of 3.6 m/s in 0.11 s .

### Physics

An adventurous aardvark arduously ambles from (3.0, 2.0) m to (−4.0, −2.0) m. What is the displacement in polar coordinates?

### Physics

METEOR SHOWER (Acceleration or Not) PLease choose the correct answer.

### Physics

What’s the deceleration of a juggernaut to stop from 45m/s by constantly decelerating at 9m/s 2(squared) ?

### Physics

Find the displacement in cubic meters of a boat weighing 4710 N.

### physics

Athelet meseret defar runs at 10m/s. How long will take her to go?

### Physics

At what temperature, in degrees Celsius, is the speed of sound in air 341 m/s?

### Physics

An truck with a mass of 3500 kg travels with a velocity of 22.0 m/s. Find the momentum.

### Physics

PLEASE HELP! I'm doing a physics demonstration, and in part of it I'm trying to explain why steel wool burns and normal steel doesn't. I know it's something to do with the smaller surface area and/or mass but I don't know WHY it burns because of this. Can anyone help me? I'm ...

### physics

How do i go about this question? Suppose a car is traveling at 20.0m/s, and the driver sees a traffic light turn red, After 0.530s has elapsed (the reaction time), the driver applies the brakes, and the car accelerates at 7.00m/s2. What is the stopping distance of the car, as ...

### math

Help! I am gettting a C in math and I am so cofussed! How do I study better but have fun while I do it? I love math, I take it as a game, I take the #'s and use their equations. I know you might not like problem solving q?, but try to get a tutor & I know u can do it. GOOD ...

### math fractions

•math - Ms. Sue, Sunday, November 16, 2014 at 12:39pm 12 •math - bob, Sunday, November 16, 2014 at 12:56pm Ms. Sue can you tell me how you got that answer please. •math - Ms. Sue, Sunday, November 16, 2014 at 1:09pm Multiples of 6: 6, 12, 18, 24 Multiples of 4: 4, 8, 12...

### PLEASE HELP, physics/math

Three people are trying to hold a lion still for the vet. The lion, in the center, is wearing a collar with three ropes attached to it and each person has a hold of the rope. charlie is pulling in the direction of 62 degrees west of north with a force of 175 newtons. Sam is ...

### physics

An inquisitive physics student and mountain climber climbs a 50.0 m cliff that overhangs a calm pool of water. He throws two stones vertically downward, 1.00 s apart, and observes that they cause a single splash. The first stone has an initial speed of 2.08 m/s downward. (a) ...

### Math

Camilles math teacher described a quadrilateral with 2 pairs of parallelvsides and 4 lineage of symmetry. Which of these quadrilaterals must have the characteristics that Camilles math teacher described? A. Trapeziod B. Square C. Rhombus D.parallelogram

### Math

Mario has a ribbon that is 5/8 yard long if she cuts her ribbon into 6 equal pieces what will be the length of each new pieces? I really need some help this test i'm doing has 50 math questions. And i'm really bad at math.

### Math

Ten students took a math exam. As the teacher evaluated the math exams, she noticed that 8 of the ten students scored above the median. Is this possible? Why I am leaning towards yes it is possible. Kinda confused

### math

During one school year, Billy Bob earned $25 for each Math test he passed and was ined $50 for each Math test he failed. By the end of the school year, Billy Bob passes 7 times as many Math tests as he failed and he had a total of $375. How many tests did he pass?

### Physics

Need Help with physics! Two cars drive on a straight highway. At time t = 0, car 1 passes mile marker 0 traveling due east with a speed of 17.0 m/s. At the same time, car 2 is 1.3 km east of mile marker 0 traveling at 30.0 m/s due west. Car 1 is speeding up with an ...

### English

At school, he learns 10 subjects such as math, science, social studies, computers, ethics, etc. He is in math class now. He has a cell phone. He is sitting at the back. One of his friends calls him and asked "Which class are you in?" What is the answer to the question. 1. I'm ...

### Math

I'm studying to take a math placement exam and it has been a long time since I've taken a math class. Can someone please give me a step to step solution of these: A.Simplify: 8x/[2^(x-1)] Answer = 2^(2x+1) B.Simplify: (2^x)*[4^(x-1)] Answer = 2^(3x-2)

### math

Please help me with this problem: Jhon missed 5 points out of 100 points on his math test. What decimal number represents the part of his math test he answered correctly? my answer is 0.95. my work: 100-5=095

### Physics please check

The "karat" is a dimensionless unit that is used to indicate the proportion of gold in a gold-containing alloy. An alloy that is one karat gold contains a weight of pure gold that is one part in twenty-four. What is the volume of gold in a 20.0 karat gold necklace whose weight...

### Math

There are 356 rows of tress growing in the field. There are 299 trees in each row. How many trees are growing in the field? Please help am stuck on this last math problem not good at the type of math problems.

### Math

If I spend t hours every night on my homework and 1/4 of the time studying math, what equation can I write to represent the number of hours I will spend doing my math homework during the next 5 days?

### physics- torque

1. Find the magnitude of the torque produced by a 3.0 N force applied to a door at a perpendicular distance of 0.25 m from the hinge. 2. A simple pendulum consists of a 3.0 kg point mass hanging at the end of a 2.0 m long light string that is connected to a pivot point. a. ...

### physics hey bob

you help me solve this problem. but how am i suppose to if i don't know the mass of the car? on a level road the stopping distance for an automobile is 35.0m for an initail speed of 90 km/hr what is the stopping distance of the same automobile on a simalr road with the slope 1...

### Physics

posted this question this morning but I'm not sure of the response Damon provided. I did it once but then I updated it later in this at the bottom- please check booth of my answers. If you were in a rotor style ride and the riders accelerate until the speed of ride is reached...

### Math

You are a letter and now your in a math problem explain to the numbers what your purpose is, how you are a friend, and how you solve algebra problems. Create a math problem and solve it. Use the letter and the number as the characters. Please tell me that this is not a ...

### Math

I lost my paper for the Math Riddle Pizazz page 167 about solving systems of equations and I no longer have the problems. (It is the "did you hear about the farmer who gave birdseed to his cows..." page) What are the math problems for it?

### math final studying

beth scored 75 on her first math test. she scored 20 % higher on her next math test. what did she score on the second test?

### physics

We're in class with a SIL decibel meter up front, and everyone is screaming at the top of their lungs, hooting and shouting and pounding on their desks, shooting off firecrackers, its Phys 1240 gone wild...and the meter is reading a reasonably steady sound intensity level of ...

### Physics

For the answer to the following post, do you mean that the frequency does not depend on the radius? Posted by Johnny on Saturday, March 13, 2010 at 5:49pm. The frequency of circular motion for a charged particle moving around in the presence of a uniform magnetic field does ...

### Math

I don't remember sampling methods... i do know that there are three and one of them is litteraly called 'random'. if i can please be reminded of the methods i can finish the last 3 problems of my math.... i don't like math especially if you have a field reading test for the ...

### PHYSICS

Using the motor principle explain why a motor is rotating in the direction indicated. I seriuosly have no idea, please help explain this theory to me. PHYSICS - drwls, Saturday, February 6, 2010 at 2:15pm To help you answer that question, I'd need a figure that shows what kind...

### Algebra 2

Well I'm curently taking this class as a sophmore and have taken geometry freshmen year of high school and also I am taking physics at the same time and in math class when I'm asked to factor i go absolutley nuts because guessing numbers is just no my thing... I need solve for...

### math, algebra

what are some challenges about working with rational expressions? Math is a language. Getting it precisely right is a lot easier than describing it in a vague statement in English such as you ask. Is there a chance you can change teachers? If so, I recommend it. THe focus of ...

### Math

Sorry if this is a lot of questions but What do you hear when you hear the word math? What do you believe when you hear the word math? What do you think when you hear the word math?

### Physics. Urgent

A vertical spring with a spring constant of 450 N/m is mounted on the floor. From directly above the spring, which is unstrained, a 0.30 kg block is dropped from rest. It collides with and sticks to the spring, which is compressed by 3.0 cm in bringing the block to a momentary...

### Math

Hi again, I don't know how to solve this problem. cube root of(cube roof of(x-1)-1) It would be ninth root of 1/(x-1) Thank you. Do you think you can explain to me how did you solve it? what are your feelings about math, rate your math anxiety, and describe what coping ...

### Math

I have trouble with math, I'm very good at science and when I grow up I want to be a zoologist, the problem is that. MATH I try to pay attention at school but the teacher is very boring and I'm one of those people that can't pay attention when bored. Any tips?

### Math (Combinatorics)

40 students attended the brilliant summer camp at Stanford University. "k" of the students at the camp are working on math problems and the others are working on non-math problems. One of the camp mentors noticed that whenever all the students were partitioned into 2 or more ...

### physics

You are flying to Chicago for a weekend away from the books. In your last physics class, you learned that the airflow over the wings of the plane creates a lift force, which acts perpendicular to the wings. When the plane is flying level, the upward lift force exactly balances...

### physics

You are flying to Chicago for a weekend away from the books. In your last physics class, you learned that the airflow over the wings of the plane creates a lift force, which acts perpendicular to the wings. When the plane is flying level, the upward lift force exactly balances...

### Physics

A small circular object with mass m and radius r has a moment of inertia given by I = cmr2. The object rolls without slipping along the track shown in the figure. The track ends with a ramp of height R = 3.0 m that launches the object vertically. The object starts from a ...

### physics

A physics professor is going ice skating for the first time. She has gotten herself into the middle of an ice rink and cannot figure out how to make the skates work. Every motion she makes simply cause her feet to slip on the ice and leaves her in the same place she started. ...

### statistics

The box plot below summarize the distributions of SAT verbal and math scores among students at an upstate New York high school. 300 400 500 600 700 800 data Whic of the following statements is false? 1. The range of the math scores equals the range of the verbal scores. 2. The...

### Physics

Hi guys, need help with this problem for physics and im having trouble visualizing it. Kathy and mountain climber climbs a 55.0 m cliff that overhangs a calm pool of water. He throws two stones vertically downward, 1.00 s apart, and observes that they cause a single splash. ...

### Physics

Ammeter 1 reads 0.20 A. a. What should ammeter 3 indicate? b. What should ammeter 4 indicate? Given: RA = 22-OHM RB = 13-OHM A1 = 0.20 A Ammeter 2 reads 0.15A. a. Find the voltage across the 22-ohm resistor? b. Find the voltage across the 15-ohm resistor? c. What is the ...

### Physics

If you have steel and wood at 0 Celsius, which is colder Both are the same temperature.

### Physics

If the earth had no atmosphere, what would the color of the sky be during the day?

### Physics

what is the angular speed, in rad/s, of a point on the surface of Jupiter at latitude 72 degrees N?

### physics

why are the lengths of days in spring and autumn the same? if the sun does not set, why is it so cold?

### Physics

When is your weight normal, higher, or lower while moving up and down in an elevator?

### Physics

1. How can voltage be induced in a wire? Can someone help me figure out an answer to this? please

### Physics

what must be the minimum velocity of a missile if it is strike a target a 100m away?

### physics

Why will a magnet attract an ordinary nail or paper clips but not a wooden pencil?

### PHYSICS QUESTION!!!!

how do you find the height or time? is it h=squreroot4.9/t or h=squareroott/4.9 or is it something else complettly???

### physics

need the formula to find jupiters orbital period in earth years

### physics

If,an,object,is,at,rest,there,must,be,no,force,acting,on,it.Is,this,statement,correct?,Explain!

### Physics

A person with a mass of 85kg. How much in newtons do they weigh on the earth and the moon?

### Physics

When you look at a distant galaxy through a telescope, how is it that you're looking backward in time?

### physics

How much would a 60-kg person weight on the Moon where the gravitational field has a magnitude of 1.6 N/kg?

### physics

How long does it take a car to travel 196 meters when accelerating at 8 m/s2 from rest?

### Physics

Can we Connect two or more batteries of different voltage in parallel circuit?

### Physics

Assume the utility rate to be $.20/kWh. What is the cost of purchasing 10kW for 1.0 hour?

### Physics

Why is Young's experiment more effective with slits than with the pinholes he first used?