-
When two objects push or pull on each other, which type of energy is being transferred? A:Chemical Energy B:Electrical Energy C:Mechanical Energy D:Sound Energy
-
I need help with a couple of questions. 1 The smaller molecules from which polymers are built are called #####= blank 2 is How do polymers form?
-
A small 30 kilogram canoe is floating downriver at a speed of 2 m/s. what is the canoes kinetic enegry?
$10.00
Physics
Waiting for answer
-
A student pulls on a 20 kg box with a force of 50 N at an angle 45 degrees relative to the horizontal. The box increases speed at a rate of 1.5 m/s2. What is the approximate normal force on the box?
-
G to correct myopia, concave lenses are prescribed. if a student can read her physics book only when she holds it no farther than 18 cm away, what focal length of lens should be prescribed so she can
$35.00
Physics
Waiting for answer
-
A uniform, 0.0300-kg rod of length 0.400 m rotates in a horizontal plane about a fixed axis through its center and per- pendicular to the rod. two small rings, each with mass 0.0200 kg, are mounted so
$20.00
Physics
Waiting for answer
-
A spherical balloon has a radius of 11.5 m, and is filled with helium. how large a cargo can it lift, assuming that the skin and structure of the balloon have a mass of 1000 kg? neglect the bouyant fo
$12.00
Physics
Waiting for answer
-
A quantity of an ideal gas is contained in a balloon. initially the gas temperature is 27°c. you double the pressure on the balloon and change the temperature so that the balloon shrinks to one-quart
-
Answers to a physics student from pittsford throws a ball thrown horizontally from the top of a building with a speed of 8 m/s. the student measures the height of the building to be 15m what is the ba
$12.00
Physics
Waiting for answer
-
An elite runner can run with a speed of 30 m/s. if the runners mass is 25 kg, what is their kinetic energy?
$35.00
Physics
Waiting for answer
-
A pendulum has 295 J of potential energy at the highest point of its swing. How much kinetic energy will it have at the bottom of its swing?
-
A golf ball is hit an an initial speed of 30 m/s. if the ball is directed at an angle of 55° above the horizontal, what is its horizontal range of the ball?
-
What are the job prospects for students with either a bachelor’s degree, master’s degree, or a doctoral degree in psychology?
$20.00
Physics
Waiting for answer
-
A 3.8 kg object is lifted 12 meters. Approximately how much work is performed during the lifting? A. 446.9 J B. 372.4 J C. 588 J D. 45.6 JA 3.8 kg object is lifted 12 meters. Approximately how much wo
-
Which properties can be used to determine whether a substance is a liquid or a plasma? Check all that apply.
$20.00
Physics
Waiting for answer
-
What is the time required for an object starting at rest to fall freely 500 meters near earth surface
-
You are measuring the speed of light through a material and come up with a value of 1 x 108 m/s. from this you can deduce that:
-
When water breaks apart, it releases positively charged ____________ ions and negatively charged ____________ ions?
-
A rock has a mass of 25 kg. the acceleration due to gravity is 10m/2^s and the height of the rock is 42m. find the potential energy of the rock
-
What is the maximum instantaneous power dissipated by a 3.3-hp pump connected to a 240-vrms ac power source? 1 hp = 746 w?
$50.00
Physics
Waiting for answer
-
The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective
-
The electric potential at a position located a distance of 21.9 mm from a positive point charge of 6.80×10-9c and 14.5 mm from a second point charge is 1.14 kv. calculate the value of the second char
-
Suppose that she pushes on the sphere tangent to its surface with a steady force of f = 75 n and that the pressurized water provides a frictionless support. how long will it take her to rotate the sph
-
One dimensional, steady-state conduction with uniform internal energy generation occurs in a plane wall with a thickness of 50mm and a constant thermal conductivity of 5 w/(m*k). for these conditions,
-
In the previous question, the person had an initial velocity of 8m/s and a constant acceleration of −4m/s2. how would the maximum distance he travels to the right of the origin change if instead his
-
Which of these provides the most creative method to date rocks based on their position in a layer? Select one: a. Law of Superposition b. Law of Unconformities c. Principle of Uniformitarianism d. Pr
$12.00
Physics
Waiting for answer
-
If the electric field strength in air exceeds 3.0 ✕ 106 n/c, the air becomes a conductor. using this fact, determine the maximum amount of charge that can be carried by a metal sphere 1.8 m in radiu
-
If a=i+2j+ka=i+2j+k and b=i+12j+kb=i+12j+k, find a unit vector with positive first coordinate orthogonal to both aa and bb.
-
How much charge is moved by the battery in c? you may assume the specific heat of baby formula is approximately the same as for water, and the specific heat of glass is 0.840 j/(g⋅°c), and the spec
-
Four point charges, each of magnitude 18.45 µc, are placed at the corners of a square 21.7 cm on a side. if three of the charges are positive and one is negative, find the magnitude of the force expe
-
Does the amount of heat absorbed as 1 kg of saturated liquid water boils at 100°c have to be equal to the amount of heat released as 1 kg of saturated water vapor condenses at 100°c? why or why not?
-
Consider a 0.2-mm diameter air bubble in a liquid. determine the pressure difference between the inside and outside of the air bubble if the surface tension at the air-liquid interface is
$50.00
Physics
Waiting for answer
-
Calculate the process capability ratio (cp) for both the temperature and thickness variables. is the polymer-coating process able to meet the engineering standards 99.7% of the time? explain.
-
A student standing on the ground throws a ball straight up. the ball leaves the student's hand with a speed of 6 m/s when the hand is 2.0 m above the ground. how long is the ball in the air before it
$20.00
Physics
Waiting for answer
-
A spherical cavity is excised from the inside of the sphere. the cavity has radius a4 and is centered at position h⃗ , where |h⃗ |<34a, so that the entire cavity is contained within the larger sph
$10.00
Physics
Waiting for answer
-
As a sailboat sails 59.0 m due north, a breeze exerts a constant force f with arrow1 on the boat's sails. this force is directed at an angle west of due north. a force f with arrow2 of the same magnit
-
A proton moves 2.00 cm parallel to a uniform electric field of 243 v/m. how much work is done by the field on the proton?
$12.00
Physics
Waiting for answer
-
A lead ball is dropped in a lake from a diving board 5.13 m above the water. it hits the water with a certain velocity and then sinks to the bottom with the same constant velocity. it reaches the bott
$35.00
Physics
Waiting for answer
-
A fire hose ejects a stream of water at an angle of 39.5 ° above the horizontal. the water leaves the nozzle with a speed of 26.0 m/s. assuming that the water behaves like a projectile, how far from
$15.00
Physics
Waiting for answer
-
Increase of green house gases, due to human activity, is warming the oceans. This causes changes in climate. Name three Earth spheres which interact in this process. Justify your answer.
-
Lizzie loves to stargaze at night. She has noticed that the moon appears to change shape over the course of the month, and she wants to investigate why this happens. She hypothesizes that the relation
$12.00
Physics
Waiting for answer
-
A bicycle tire has a pressure of 6.00 ✕ 105 N/m2 at a temperature of 20.0°C and contains 1.90 L of gas. What will its pressure be (in Pa) if you let out an amount of air that has a volume of 150 cm
-
Potassium chlorate decomposes to produce 20 g of solid potassium chloride. Oxygen gas is also produced. Which best describes the mass of oxygen? It is more than the mass of potassium chloride. It is l
$20.00
Physics
Waiting for answer
-
Robby skateboards 0.50 blocks to his friends house in 1.2 minutes. what is his speed/9366704/aa0c54ad?utm_source=registration
$20.00
Physics
Waiting for answer
-
A helicopter is traveling at 86km/h at an angle of 35° to the ground. what is the value of Ax and Ay?
$15.00
Physics
Waiting for answer
-
Water is being heated in a closed pan on top of a range while being stirred by a paddle wheel. during the process, 30 kj of heat is transferred to the water, and 5 kj of heat is lost to the surroundin
$12.00
Physics
Waiting for answer
-
Two compact sources of sound oscillate in phase with a frequency of 130 hz where the speed of sound is 340 m/s. at a point that is 3.40 meters from one source and 3.87 meters from the other, the ampli
-
The tractor-trailer unit is moving down the incline with a speed of 5 mi/hr when the driver brakes the tractor to a stop in a distance of 4 ft. estimate the percent increase n in the hitch-force compo
-
The gulf stream off the tip of florida has a flow of 35 sv (1 sv = 109 m3/s). what is the flow in milliliters per minute? what mass of water flows past the tip in 24 hours? how much time is required f
$20.00
Physics
Waiting for answer
-
The cantilever footing is used to support a wall near its edge a so that it causes a uniform soil pressure under the footing. determine the uniform distribution loads, wa and wb, measured in lb/ft at
$15.00
Physics
Waiting for answer
