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4 years ago

Critical thinking!!

Physics

1 answer:

Maslowich4 years ago

8 0

Answer:

No there is no displacement observed so no work done

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Sam is observing the velocity of a car at different times. After three hours, the velocity of the car is 53 km/h. After six hour

Serhud [2]

For the answer to the question above, first find out the gradient.

m = rise/run 
=(y2-y1)/(x2-x1) 

the x's and y's are the points given: "After three hours, the velocity of the car is 53 km/h. After six hours, the velocity of the car is 62 km/h" 
(x1,y1) = (3,53) 
(x2,y2) = (6,62) 

sub values back into the equation 
m = (62-53)/(6-3) 
m = 9/3 
m = 3 

now we use a point-slope form to find the the standard form 
y-y1 = m(x-x1) 
where x1 and y1 are any set of point given 
y-53 = 3(x-3) 
y-53 = 3x - 9 
y = 3x - 9 + 53 
y = 3x + 44 

y is the velocity of the car, x is the time.
I hope this helps.

4 0

3 years ago

Which is the best estimate for the mass of a typical lineman on a high school football team

fgiga [73]

We have that the best estimate for the mass of a typical lineman on a high school football team is

$100,000 g=100kg$

From the options

1. 100,000 g

2. 100,000 kg

3. 100,000 mg

Generally

A Typical lineman cannot be as small as

$100000mg=0.1kg=100g$

A Typical linesman cannot be as massive as

$100,000kg$ as that is unrealistic

With the Average Mass of A Typical linesman can be

$100,000 g=100kg$

In conclusion

The best estimate for the mass of a typical lineman on a high school football team is

$100,000 g=100kg$

For more information on this visit

brainly.com/question/10069252

7 0

3 years ago

What is star wars 1313

Vinvika [58]

star wars 1313 is a cancelled video game ( action / adventure ) that was under development by lucas arts.

6 0

3 years ago

Read 2 more answers

Running is probably the simplest individual sport for promoting both health-related and skill-related fitness.

Tamiku [17]

Answer:

Running is probably the simplest individual sport for promoting both health-related and skill-related fitness. Fencing is often referred to as "mental chess" because it requires dexterity, endurance, and discipline. Individual sports require the coach to make all of the decisions for the athlete.

8 0

2 years ago

A vector has an x component of -27.5 units and a y component of 41.4 units. Find the magnitude and direction of this vector. mag

evablogger [386]

Answer:

a.) magnitude __49.7__ unit(s)

b.) direction __123.6°_ counterclockwise from the +x axis

Explanation:

Let Vector is v

x-component of Vector v = x = -27.5 units (minus sign indicate that x-component is along the minus x-axis )

y-component of Vector v = y = 41.4 units

Magnitude of v = ?

Direction of v = ?

To find the magnitude of the vector

v = $\sqrt{x^{2}+y^{2} }$

v = $\sqrt{-27.5^{2}+41.4^{2} }$

v = 49.7 units

To find direction

θ = tan⁻¹(y/x)

θ = tan⁻¹(41.4/-27.5)

θ = -56.4°

This Angle is in the clockwise direction with respect to -x axis.

We need to find Angle counterclockwise from the +x axis.

So,

θ = 180° - 56.4°

θ = 123.6°

The given vector is in 2nd quadrant

4 0

4 years ago