Araoye I.

01/21/22

find the net electrostatic force on the Q2 = 2.00−nC charged particle located at the origin. (Express your answer in vector form. Assume Q1 = −16.00 nC and Q3 = 5.00 nC.)

Given:Q1 has a point value of (-3.50cm, 0)Q3 has a point value of (1.50cm, 0)F = ? NPlease be detailed in your explanation so I can understand

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Math Physics

01/13/22

The magnitude of the vectors F~ is 21 N, the force on the right is applied at an angle 61◦ and the the mass of the block is 54 kg.

The magnitude of the vectors F~ is 21 N, the force on the right is applied at an angle 61◦ and the the mass of the block is 54 kg. If the surface is frictionless, what is the magnitude of the... more

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Calculus

01/12/22

Find the second and third components of a vector n

Find the second and third components of a vector n normal to the plane with the equation 12x+13y-14z=5 if the first component of the vector n is equal to 12.The second component of n = ?The third... more

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Pre Calculus

12/21/21

Given \csc A=\frac{\sqrt{74}}{5}cscA= 5 74 and that angle AA is in Quadrant I, find the exact value of \sec AsecA in simplest radical form using a rational denominator.

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Probability

12/18/21

Probabilities of draws without replacement

A box contains 5 red balls and 7 orange balls. If Tim chooses 6 balls at random from the box, what is the probability that he will select 4 red balls and 2 orange balls? Round your answer... more

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Physics

12/17/21

A motorbike accelerates from rest to 12 m/s in 3 s on a level road. If the force is 3000 N, what is the total mass of the cyclist and the motorbike?

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Physics Physics C Physics 1

12/17/21

The Problem on Projectile Motion for AP Physics 1 and AP Physics C students

The rocket is fired with a muzzle velocity of 98 m/s at an angle of 52°. After firing, the rocket accelerates with a = 28 m / s2 within 5 s and moves along a straight line. The rest of... more

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Physics

12/16/21

A barge is pushed through the water by 2 tugboats as shown in the diagram below.

A barge is pushed through the water by 2 tugboats as shown in the diagram below. The mass of the barge and its contents is 4800 tonnes and its acceleration in the water is 8.30 cm/s2. Determine the... more

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Physics

12/09/21

figure skater is in a tight spin. She has a moment of inertia of 78.1 kg·m2 and

A figure skater is in a tight spin. She has a moment of inertia of 78.1 kg·m2 and an angular momentum of 1500 kg·m2/s. Just before she haults her rotation she thrusts her arms out so that her... more

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Math Calculus

12/09/21

Related Rates - Rectangles

A rectangle has a length of 2 inches and a width of 11 inches whose sides are changing. The length is decreasing by 10 in/sec and the width is growing at 8 in/sec. What is the rate of change of the... more

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Geometry

12/09/21

Help me please i just dont understand

Ellis is painting wooden fenceposts before putting them in his yard. They are each 7 feet tall and have a diameter of 1 foot. There are 11 fenceposts in all. How much paint will Ellis need to paint... more

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Physics

09/13/21

Physics Problem

An experienced archer shot an arrow from the top of a fortress with a launch angle of +15.0° from the horizontal direction. The arrow moved at 43.3 m/s at the instant it was at the top of its... more

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Math Science Physics

07/30/21

Gravitational Potential Energy physics

Candy bar has an energy content of 212 Cal = 212 kcal = 8.87 x 105 J. If 81.0 kg mountain climber eats the bar, how much altitude (y) should she be able to gain? (Assume her body is 100% efficient... more

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Chemistry

07/30/21

Find the total number of atoms in a sample of cocaine hydrochloride, C17H22ClNO4, of mass 21.0 mg .

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Calculus

07/29/21

find all numbers c that satisfy the conclusion of the Mean Value Theorem for f(x)= 3x^2 -4x+1

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Chemistry

07/09/21

What equation do I use for this problem?

0.700 moles of an unknown solid is placed into water to make 150.0 mL of solution. The solution's temperature decreases by 5.51°C. Calculate ∆H, in kJ/mol, for the dissolution of the unknown solid.... more

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Discrete Math

07/09/21

Question about an arrow diagram

My question is this, I understand how to find the S diagram, once I find the cartesian products and do x < y which explain all the arrows in the S diagram. However, I do not understand the T... more

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Math Probability

07/09/21

math probability

You roll a fair six-sided die twice. Find the probability of rolling a 1 the first time and a number greater than 2 the second time.

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Organic Chemistry

07/09/21

Chemistry question

A scientist measures the standard enthalpy change for the following reaction to be 215.0 kJ : CH4(g) + H2O(g)3H2(g) + CO(g) Based on this value and the standard enthalpies of formation for the... more

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Physics Thermal Expansion

07/09/21

lengths of steel and rod bars

. A composite rod is made by joining two rods of different materials but with the same cross-sectional area as shown below. Design such a composite rod using steel (α = 11 x 10-6 / C°) and brass (α... more

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Answers •1

Calculus Multivariable Hessian

07/09/21

Suppose that g(x,y,z)= x^3y^2z^-1 determine the hessian h(g) at the point (1,1,1)

I actually have an initial solution to this, I just got stuck and I do not know if what I did was rightg(x,y,z) =x3y2z-1Fx=3x2y2 z-1Fy=x32yz-1Fz=x3y2-z-1Then the second partial derivativeFxx=... more

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Calculus

07/09/21

what is the velocity?

The position of a particle moving along a coordinate line is s = 1/t with s in meters and t in seconds. Find the particle's velocity at t= 0.1 sec.

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Chemistry

07/07/21

Tin has 10 stable isotopes. The heaviest, 124Sn, makes up 5.80% of naturally occurring tin atoms. How many atoms of 124Sn are present in 91.0 g of naturally occurring tin?

Tin has 10 stable isotopes. The heaviest, 124Sn, makes up 5.80% of naturally occurring tin atoms.How many atoms of 124Sn are present in 91.0 g of naturally occurring tin?What is the total mass of... more

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Chemistry

07/07/21

What is the mass, in grams, of 9.35×1024 molecules of methanol (CH3OH)?

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Chemistry

07/05/21

A 15.0 mL solution of Ba(OH)₂ is neutralized with 22.5 mL of 0.200 M HCl. What is the concentration of the original Ba(OH)₂ solution?

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Answers •1

find the net electrostatic force on the Q2 = 2.00−nC charged particle located at the origin. (Express your answer in vector form. Assume Q1 = −16.00 nC and Q3 = 5.00 nC.)

The magnitude of the vectors F~ is 21 N, the force on the right is applied at an angle 61◦ and the the mass of the block is 54 kg.

Find the second and third components of a vector n

Given \csc A=\frac{\sqrt{74}}{5}cscA= 5 74 and that angle AA is in Quadrant I, find the exact value of \sec AsecA in simplest radical form using a rational denominator.

Probabilities of draws without replacement

A motorbike accelerates from rest to 12 m/s in 3 s on a level road. If the force is 3000 N, what is the total mass of the cyclist and the motorbike?

The Problem on Projectile Motion for AP Physics 1 and AP Physics C students

A barge is pushed through the water by 2 tugboats as shown in the diagram below.

figure skater is in a tight spin. She has a moment of inertia of 78.1 kg·m2 and