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3 years ago

PLEASE HURRY Which of the following measurements is a measurement of velocity?

Physics

1 answer:

madreJ [45]3 years ago

6 0

Answer:

C) 350 m/s N

Explanation:

Velocity is measured in miles per hour or metres per second.

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A 900 kg car pushes a 2400 kg truck that has a dead battery. when the driver steps on the accelerator, the drive wheels of the c

Wewaii [24]

A)0
b)magnitude of the force on the car is 500n

5 0

3 years ago

There are 640 acres in a square mile. how many square meters are there in 7.80 acres.

lukranit [14]

Answer:

On 7.8 acres there are 31565.3 square meters

7.8 acres = 31565.3 m²

Explanation:

Conceptual analysis

Acre, square mile and square meter are area units, so their equivalences are in square units.

Known data

1 (mi)² = 640 acres

1 mi = 1609.34 m

Problem development

We know that 1 mile = 1609.34m, then: (1 mile)² = (1609.34m)²=(1609.34)²m²

We apply the known conversion factors to calculate the square meters (X) in 7.8 acres:

$X=7.8 acres *\frac{(1 mi)^{2} }{640 acres} * \frac{(1609.34)^{2}m^{2} }{(1 mi)^{2} }$

We eliminate acres and square miles (mi²) because they are in the numerator and denominator, so the answer is in square meters (m²)

X=31565.3 m²

On 7.8 acres there are 31565.3 square meters

7.8 acres = 31565.3 m²

8 0

3 years ago

What do we call the temperature at which a liquid changes to a solid

lara31 [8.8K]

Answer: melting point

Explanation:

7 0

3 years ago

You lift a 45N bag of mulch? 1.2meters and carry it a distance of 10 meters how much work was done

Anettt [7]

W = Fxd
However, when you carry it, the actual bag of mulch isnt changing height so the only work done on the actual bag is when you lift it.
W = 45N x 1.2m
= 54J

7 0

4 years ago

if a girl is running along a straight road with uniform velocity 1.5 metre per second find the acceleration

PilotLPTM [1.2K]

Answer:

Acceleration is 0.

Explanation:

Since the girl is running with a uniform velocity, meaning she is moving at a constant rate, she is not accelerating. Acceleration only occurs when the speed of an object increases, decreases, or if there is a change in direction.

4 0

3 years ago