01/29/18

Free Fall physics
A ball is thrown downward with initial velocity of 8.0m/s. What is it’s velocity 2.5s later? How far from its initial position it will be at that instant of time?
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01/29/18

Free fall question
1. A ball is thrown upward with initial velocity of 12m/s. How high will it go in 2.0s? What maximum height can it reach? What time does it need to reach the maximum height?
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01/29/18

When the two boxes reach thermal equilibrium, what is the temperature and pressure inside the first box?
Imagine we have two very well insulated stiff boxes. The first contains air with the properties V=3m³,T=230K, P=101kPa. The second contains water with the properties V=1000cm³, T=370K. They are... more
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01/29/18

How many lemons can you buy with $10.00
How can we solve this
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01/29/18

Find energy lost in a system.
A projectile of mass 0.6 kg is shot straight up with an initial speed of 17.5 m/s. How much energy is lost from the system if it reaches a max height of 13.78125?
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01/29/18

An object that is vertically projected or falls from the sky has a velocity of v and is given by v = -32t + vo
An object that is vertically projected or falls from the sky has a velocity of v and is given by v = -32t + vo, where v is the velocity in feet/sec, t is the time in seconds, and vo is the initial... more
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01/29/18

Which country won its independence from Spain in 1821, opening its northern borders to trade with the United States?
i don't have details
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01/29/18

what is a correct fit for 3y=2x+3 equation
it wants me to graph this equation on a graph 
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01/29/18

How to find mass of a hockey puck?
A hockey puck slides along the ice to the right at 8.2 m/s. A hockey stick delivers an impulse of 6.8 Ns, causing the puck to move off to the left at a speed of 2.3 m/s.   Find the mass of the... more
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01/29/18

If a bird is moving at a velocity of 70 km/h east and a car is moving at a velocity of 80 km/h east
what is the velocity of the bird relative to the passengers in the car?
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01/29/18

when and where did fighting in the U.S. civil war begin
it is for social studies mannnnnnnn
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01/29/18

why is radon considered dangerous?
why is radon considered dangerous?
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01/29/18

there are 8 times as many children as adults at the park. There are 5 adults. How many people are there altogether?
asked by my kids homework and the teacher reckons the correct answer is 40 - not sure this is correct
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01/29/18

if 12 is 60% what is 100%
help me with this one please
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01/28/18

What is Triton's surface temperature in degrees Fahrenheit in Kelvins
In contrast to Venus the coldest temperature yet measured on the surface of anybody and that's our system is -235 degrees Celsius is temperature was by earlier to ask the bass Neptune's largest... more
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01/28/18

You have 118,720 grams of a radioactive kind of tin. How much will be left after 30 days if its half-life is 10 days?
iufbwefuobwr fciawekhdb
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01/28/18

There were 320 girls and 180 boys at a playground. What percent of the children were girls?
Please help with question 
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01/28/18

question below please answer asap
Two boxes on a frictionless horizontal plane are connected by a massless string. The lefthand box has mass 2m and the right-hand box has mass m. A force F = 1/2mg is applied to the right-hand mass... more
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01/28/18

An initial population of 750 endangered turtles double every 5 years. Find the growth factor and the population of turtle after 15 years.
Math, confusion, extreme confusion
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01/28/18

A graduated cylinder contains 25.0 mL of water. new water level after 31.6 g of silver metal with a density of 10.5 g/mL is submerged in the water?
A graduated cylinder contains 25.0 mLof water. What is the new water level after 31.6 gof silver metal with a density of 10.5 g/mLis submerged in the water?
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01/28/18

3tanx-2cotx=3
find all values of x
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01/28/18

If a heater consumes 6 units of electricity in 2 1/2 HOURS. How many units will be consumed in 10 hours?
Math solving equation 
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01/27/18

A 1200 kg car moving at 20 m/s suddenly experiences a braking force of -5000 N that brings the car to rest. For what amount of time do the brakes act on the car
Help, I can't understand this question?
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01/27/18

A tennis ball approaches a racquet with a momentum of 5 kgm/s and bounces back with a momentum of 6 kgm/s in the opposite direction after the collision with the
Help, I can't understand this question?
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01/27/18

Acceleration is defined as the change in velocity over time so a=v/t.
If you have a car that can accelerate with a=5m/s^-2, how long does it take the car to reach a velocity of v=25m/s^-1 (which is equivalent to 90km/h) ? Show all the steps taken to get to the answer.  more
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