10/02/22

Projectile motion
Suppose that a world-class long jumper jumped on the moon with the same initial velocity as that which would produce a world record breaking distance of 9.35 m on earth. What would be the range of... more
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11/16/21

Find the value V of the Riemann sum ∑ 𝑓(𝑐𝑘 )∆𝑥𝑘 𝑛 𝑘=1 for the function 𝑓(𝑥) = 2 𝑥 using the partition 𝑃 = {1,3,6,8}, where 𝑐𝑘 are the right end points of the partition V.
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05/02/21

Pythagoream Identities

Find cot x if cos x= 1/7 and sin x <0
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03/12/21

Please help me !
Consider the reaction:ZnO(s) + H2O(l) → Zn(OH)2(aq)Given an initial mass of 16.31 g ZnO, an excess of H2O, and assuming that all of the reactant is converted to product(s), and none is lost,... more
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02/05/21

A block is pulled
at a constant speed along a rough level surface by a rope that makes an angle of 35.0º with respect to the horizontal. The applied force along the rope is P. The force of kinetic friction between... more
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12/18/20

The mass of a bicyclist and a bicycle together is 53.0 kg. How much work has been done if the bicyclist slows the bicycle from a speed of 3.84 m/s to 1.27 m/s?
I'm not sure how to do this. I'm doing online school and I can't fully grasp this lesson
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12/18/20

What is the recursive formula for the sequence 8, 10, 12.5, 15.625, …?
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12/18/20

if a linear function f satisfies the conditions: f(-3)=-4 and f(3)=14 find f(x)
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12/17/20

college physics question multiple choice
An exotic planet Vogsphere is known to have a mass that is 1/81 that of the Earth and a radius 0.25 that of the Earth. Astrophysicist Trillian built a rocket and decided to leave the planet and... more
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12/17/20

harold threw a ball 3 meters. harold is 2 meters tall. how fast did he throw the ball, and long was it in the air
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12/17/20

what is the acceleration due to gravity and radius
An astronaut drops a penny on Mercury from a height of 2.6 meters. It takes 3.1 seconds to drop to the ground. a. What is the acceleration due to gravity on Mercury?b. If the mass of mercury is... more
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12/16/20

Find Electrical field.
 A straight rod has a charge of +230nC distributed along its 6.3 m length . Estimate E near the middle of the rod at a perpendicular distance of 25mm.
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12/14/20

f(x)= 2sin(3x)+4 Let g(x)=5f(2x) Find the range of g
f(x)= 2sin(3x)+4 Let g(x)=5f(2x) Find the range of gThanks for the help !
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12/13/20

You go to the doctor and he gives you 15 milligrams of radioactive dye...?
You go to the doctor and he gives you 15 milligrams of radioactive dye. After 24 minutes, 5.25 milligrams of dye remain in your system. To leave the doctor's office, you must pass through a... more
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12/11/20

Given f(x) below, what is f′(x)?
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12/11/20

Find f. f '(x) = 4/ root(1 − x^2) , f (1/2) = 8
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12/10/20

Write an equation for a graph that takes h(x)= ln(x) and reflects it over the y-axis, horizontally stretches it by a factor of 6, vertically shrinks it by a factor of 10, and moves it up 1 and 3 left
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12/08/20

I i i i ii i i i ii i

Let ABC be a triangle where M is the midpoint of line AC, and line CN is the angle bisector of angle ACB with N on line AB. Let X be the intersection of the median BM and the bisector CN. In... more
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11/18/20

precal question

Use a Double- or Half-Angle Formula to solve the equation in the interval [0, 2𝜋). (Enter your answers as a comma-separated list.) tan𝜃/2) − sin(𝜃) = 0 𝜃 =   
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11/09/20

Oscillations physics question
Consider a physical pendulum in which the distance from the axis of rotation to the center of mass is 22.5 cm. The formula for the pendulum's moment of inertia goes as k·mr2 and its radius is 31.5... more
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11/08/20

What is the exit velocity of the dart? What is the acceleration of the dart inside the blowgun?
A blowgun dart is fired horizontally and strikes a target 20 meters away after dropping 0.75 meters. What is the exit velocity of the dart if the blowgun is 1.15 meters long, what is the... more
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10/14/20

physics:-Velocity,speed
Two airplanes leave an airport at the sametime. The velocity of the first airplane is660 m/h at a heading of 55.2◦. The velocityof the second is 590 m/h at a heading of 111◦.How far apart are they... more
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05/13/20

A rectangular boat is 7 m wide and 7 m long. After a truck pulls onto the ferry, the boat ends up with a depth of 1 cm submerged under the water.

What is the combined weight of the truck and the ferry? (Assume the density of water is 1000 kg/m3.) 
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05/12/20

Friction and Newton’s First Law Questions
Please help.In the horizontal starting area of a four-person bobsled race, the four athletes, with a combined mass including outfits of 295 kg, exert a minimum horizontal force of 41.0 N [F] to get... more
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05/08/20

I really need help with math homework. Please and thank you!
Find the average value of , on its domain.Options: 1)  2π 2)  4π 3)  2 4)  4
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