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const2013 [10]
3 years ago
5

A car accelerates at a rate of 4.00 m/swest for 5.0 seconds. What is the car's change in

Physics
1 answer:
andre [41]3 years ago
3 0

Answer:

20 m/s

Explanation:

Acceleration = Change in velocity/ time

4 = Change in Velocity/ 5

Change in velocity = 20 m/s

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Tony walks at an average speed of 70 m/min from his home to
aksik [14]

Answer:

The answer is 30 min

Explanation:

t = s/v

v = 70 m/min, s = 2100 m

t = 2100/70 = 30 min.

Hope it helps you! \(^ᴥ^)/

6 0
3 years ago
A vector of components (−3, −2) is multiplied by the scalar value of -6. What is the magnitude and direction of the resultant ve
mixer [17]
The components of the resultant will be: (18, 12)

In order to find the magnitude you have to apply the Pythagorean theorem:
√(18² + 12²) = √468 = 21.6
Therefore, the magnitude of the resultant vector is 21.6

The direction is given by the formula:
α = tan⁻¹(v_y / v_x)
   = <span>tan⁻¹(12/18)
   = 33.7°
Therefore, the direction will be 33.7° from the x-axis.</span>
4 0
4 years ago
Check cashing businesses do not require that an individual be an account holder; they will cash any valid check. True False
Romashka-Z-Leto [24]
True. Free trade means they can't refuse to give you cash for a check. If you want the check deposited to an account, that's another story.
3 0
3 years ago
Read 2 more answers
A 10.0 cm object is 5.0 cm from a concave mirror that has a focal length of 12 cm. What is the distance between the image and th
fiasKO [112]
Let's use the mirror equation to solve the problem:
\frac{1}{f}= \frac{1}{d_o}+ \frac{1}{d_i}
where f is the focal length of the mirror, d_o the distance of the object from the mirror, and d_i the distance of the image from the mirror.
For a concave mirror, for the sign convention f is considered to be positive. So we can solve the equation for d_i by using the numbers given in the text of the problem:
\frac{1}{12 cm}= \frac{1}{5 cm}+ \frac{1}{d_i}
\frac{1}{d_i}= -\frac{7}{60 cm}
d_i = -8.6 cm
Where the negative sign means that the image is virtual, so it is located behind the mirror, at 8.6 cm from the center of the mirror.
6 0
3 years ago
Read 2 more answers
Why is gravity considered a force?
sattari [20]
Gravity is a force because it pulls down on objects.
5 0
4 years ago
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