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alukav5142 [94]
3 years ago
11

A bicycle and its rider have a combined mass of 80 kg and a speed of 6 m/s. What is the magnitude of the average force needed to

bring the bicycle and its rider to a stop in 4 seconds?

Physics
2 answers:
anygoal [31]3 years ago
6 0

Answer: 120N

Explanation:Please see attachment for explanation

lisabon 2012 [21]3 years ago
4 0
The magnitude is 24 meter
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Integrated circuits are used in virtually all modern electronic
marissa [1.9K]

Answer:

True.

Explanation:

An electric circuit can be defined as an interconnection of electrical components which creates a path for the flow of electric charge (electrons) due to a driving voltage.

Generally, an electric circuit consists of electrical components such as resistors, capacitors, battery, transistors, switches, inductors, etc.

This electrical network which is usually a closed loop comprises of a device that provides the energy (voltage) to drive electrons or electric current; the device is referred to as a source such as a generator or battery.

Similarly, an integrated circuit (IC) also referred to as microchip can be defined as a semiconductor-based electronic component that comprises of many other tiny electronic components such as capacitors, resistors, transistors, and inductors.

Generally, integrated circuits (ICs) are used in virtually all modern electronic devices to carry out specific tasks or functions such as amplification, timer, oscillation, computer memory, microprocessor, etc.

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3 years ago
What is the direction of acceleration due to gravity​
Paul [167]

Answer:

Negative, because the speed is decreasing.

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3 years ago
In an unweathered sample of igneous rock, the ratio of an unstable isotope to its stable daughter isotope is 1:15. If no daughte
svlad2 [7]

Answer:

200 million years

Explanation:

The equation that describes the decay of a radioactive isotope is

N(t)=N_0 (\frac{1}{2})^{\frac{t}{t_{1/2}}}

where

N(t) is the amount of radioactive isotope left at time t

N_0 is the initial amount of isotope

t_{1/2} is the half-life of the sample

In this problem, the ratio between unstable isotope and daughter isotope is 1:15; this means that

\frac{N(t)}{N_0}=\frac{1}{16}

Because the "total proportion" of original sample was 1+15=16.

Also we know that the half-life is

t_{1/2}=50\cdot 10^6 y

So we can re-arrange the equation to find t, the age of the rock:

t=t_{1/2} log_{0.5}(\frac{N}{N_0})=(50\cdot 10^6)log_{0.5}(\frac{1}{16})=200\cdot 10^6 y

So, 200 million years.

6 0
4 years ago
a graph depicts force versus position. what represents the work done by the force over the given displacement?
atroni [7]
The area under the graph. W = f d cos(theta), so you want the number that is force times displacement, which corresponds to the area under the graph.
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3 years ago
What is definition of ultraviolet radiation?
sweet [91]

Explanation:

Ultraviolet is a form of electromagnetic radiation with wavelength from 10 nm to 400 nm, shorter than that of visible light, but longer than X-rays. UV radiation is present in sunlight, and constitutes about 10% of the total electromagnetic radiation output from the Sun.

4 0
3 years ago
Read 2 more answers
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