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3 years ago

By approximately how much does your gravitational potential energy change when you jump

1 answer:

4 0

Potential Energy = height*mass*gravity
the height is factually the height of the center of mass, which will be varied the same as the lowest of your feet. So when you hurdle, the height that you jump can be used to distinguish the alteration in height of your center of mass.In other words, it is inclined on the mass of the human, be contingent on how extraordinary the person can jump. Supposing a man is 80 kg and he can jump such that his center of mass rises 0.3 m in Earth's standard gravitational field. This sums to approximately 240 Joules of increase in GPE.

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6) Bill and Amy want to ride their bikes from their neighborhood to school which is 14.4

Studentka2010 [4]

Answer:

Amy's speed is 2/3 faster than Bill's

Explanation:

can't believe you don't know how to do this.

3 0

3 years ago

A water tank holds 1,000 gallons of water. How many cubic meters is this?

lora16 [44]

I have no idea what the exact answer is, so sorry in advance but ik it’s definitely less than four, but greater than three.. lol hope that helps some

4 0

3 years ago

Suppose that a car traveling to the west (the - x direction) begins to slow down as it approaches a traffic light. Which stateme

Amanda [17]

Answer:

(A) it's acceleration is negative but but it's velocity is positive

Explanation:

In the question it is given that begins to slow down so its speed is decreasing it is does not means that its speed is negative

For example let first the velocity of the car is 30 m/sec and when its velocity decreases it becomes 20 m/sec in 5 sec

So it is not negative at all

Now the acceleration is the rate of change of velocity

$a=\frac{dv}{dt}$

$a=\frac{v_2-v_1}{dt}=\frac{20-30}{5}=-2 m/sec^2$

So acceleration is negative here

So option (a) will be the correct option

4 0

3 years ago

Describe in short the working system of a water pump

Monica [59]

The pump is powered by an electric motor that drives an impeller, or centrifugal pump. The impeller moves water, called drive water, from the well through a narrow orifice, or jet, mounted in the housing in front of the impeller.

5 0

4 years ago

How should variables be depicted on a graph?

nignag [31]

Answer:

D.) independent variable on the x-axis

Explanation:

Normally in an x-y plane, the value of x is taken as an independent variable, i.e. it is independent because it can assume any value (real number), while y depends on the value x. for example for the following equation.

y = x

Where:

x = independent value.

y = dependent value of x

This is the equation of a line, inclined with slope equal to 1.

4 0

3 years ago