11/29/21

A body of mass 15 kg accelerates from rest at the rate of 4.0 ms^-2. Determine the distance would the body travel in 25 seconds
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11/28/21

The difference between the frequency f and the frequency ω is that f is measured in cycles per second or hertz (abbreviated Hz) whereas the units for ω are __________ per second.
The difference between the frequency ff and the frequency ωω is that ff is measured in cycles per second or hertz (abbreviated HzHz) whereas the units for ωω are __________ per second.Give your... more
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11/28/21

What is the period of a simple pendulum 54 cm long when it is in a freely falling elevator? Express your answer using two significant figures. If there is no answer, enter none.
What is the period of a simple pendulum 54 cmcm long when it is in a freely falling elevator?Express your answer using two significant figures. If there is no answer, enter none.
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11/28/21

Physics rocket problem
A rocket is fired with a velocity of 9.25 x 102 m/s at 25⁰ above the horizontal. Determine how far away it lands on level ground.
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11/28/21

Math and physics problem
Two girls are at point x on one side of a river, 50.0 m wide and having a current of 1.0 m/s, flowing as shown. Simultaneously, they drive into the water in an attempt to reach point Y, directly... more
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11/28/21

Find the number of each coin
Owne has a collection of nickels and quaters worth $8.10.If the nickels were quaters and the quaters were nickels,the value would be $17.70.
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11/28/21

A 129.1 g piece of copper (specific heat 0.380 J/g･°C) is heated and then placed into 400.0 g of water initially at 20.7°C.

The water increases in temperature to 22.2°C. What is the initial temperature (in °C) of the copper? (The specific heat of water is 4.184 J/g･°C).
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11/28/21

A 25.0 g block of copper (specific heat capacity 0.380 J/g･°C) at 54.0 °C is placed into 500.0 g of water initially at 20.0 °C.

What is the change in temperature (in °C) of the copper block? (The specific heat capacity of water is 4.184 J/g･°C).
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11/28/21

Find the location of the third point required to make an equilateral triangle.
https :// ibb . co. / RQwYDdg
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11/28/21

Physics Help Needed!
1. ) A 100 gram marble strikes squarely against a 30.0 gram marble which is lying at rest on a flat, smooth surface. During the impact, the speed of the large marble is reduced from 90.0 cm/sec to... more
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11/28/21

Find the cost per pound of turkey and the cost per pound of ham.
Casey bought a 15.4-pound turkey and an 11.6-pound ham for Thanksgiving and paid $38.51.Her friend Jane bought a 10.2-pound turkey and a 7.3-pound ham from the same store and paid $24.84.
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11/27/21

solve using the elimination method
Step by step using elimination method:Can you please teach me how to do the elimination step by step?11y+1=-6x0=43-7x-4y
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11/27/21

solve the system using the elimination method
12y=17-9x-4y-3x=31Step by step using elimination method:Can you please teach me how to do the elimination step by step?
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11/27/21

writing half reactions of a single displacement reaction
2AgNO3 (aq) + Cu (s) --> 2 Ag (s) + Cu(NO3)2 (aq)Then, write balanced half-reactions describing the oxidation and reduction that happen in this reaction. 
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11/27/21

Check the following logarithmic equation I solved please!
log(x+1)+log(ex)=10(x+1)ex=1010x=W0(1010e)-1x=19.98ln(x+1)+log(x+1)+log4(x+1)=10x+1=10^x=10{20log(e)log(2)}/{2log(e)log(2)+log(4e)}x=10{20log(e)log(2)}/{2log(e)log(2)+log(4e)}-1x=102.44Let me know... more
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11/27/21

Three point masses lie in a plane and are connected by masses rods so that they cannot move relative to each other. The masses and their positions are:
Three point masses lie in a plane and are connected by masses rods so that they cannot move relative to each other. The masses and their positions are:m1 = 2 kg at (0 m, 6 m)m2 = 5.4 kg at... more
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11/27/21

Answer the following:
Two lighthouses are located on a north-south line. From lighthouse A, the bearing of a ship 3742 meters away is 129°43’. From lighthouse B, the bearing of the ship is 39°43’. Find the distance... more
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11/26/21

Take the Laplace transform -4 dy/dt - y = 0 y(0) = -8
Take the Laplace transform of the IVP-4 dy/dt - y = 0 y(0) = -8I need to use Y for laplace transform of y( ) = Y{0}So Y = (-8) / (s - 1/4 )and y(t) = -8e^(-t/4)I tried sY+8+1/4Y = Y{0} but it says... more
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11/24/21

If all physical dimensions in the solar system were scaled up by a factor of 2 and the masses of the suns, planets, and moons were scaled up by a factor of 2, what would the moon's period be years?

in terms of present years?
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11/23/21

6. How would you prepare the following compounds, starting with cyclopentene and other reagents needed? a. Chlorocyclopentane b. Cyclopentanol
How would you prepare the following compounds, starting with cyclopentene and other reagents needed? a. Chlorocyclopentaneb. Cyclopentanol
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11/22/21

Hi,I need help to name this compound

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11/22/21

Rewrite the equation in standard form- y=4/3x+7, y=5/2-2
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11/21/21

Solve for the work and the Power output
You are helping out by lifting hollow blocks, each with a mass of 1.5 kg, from the street to the cart that is 0.75 m high. (a) How much work do you perform in lifting each block? (b) If you can... more
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11/20/21

Conversions and Chemical Equations
When propane (C3H8) reacts with oxygen (O2), carbon dioxide (CO2) and water (H2O) are produced. The balanced equation for this reaction is:C_3 H_8 (g)+5 O_2 (g)→3 〖CO〗_2+4 H_2 O(g)If 20 moles of... more
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11/20/21

projectile problem
An object is projected horizontally from a measured vertical height and travels a measured horizontal distance. Design an experimental procedure by which the relationship between these values can... more
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