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mamaluj [8]
2 years ago
14

How do you calculate the change in speed?

Physics
2 answers:
Dennis_Churaev [7]2 years ago
8 0

v = d/t

d = distance

t = time

the change in speed (Δv)

\tt \Delta v=\dfrac{d_2-d_1}{t_2-t_1}

marta [7]2 years ago
3 0
Multiply the acceleration by time to obtain the velocity change: velocity change = 6.95 * 4 = 27.8 m/s . Since the initial velocity was zero, the final velocity is equal to the change of speed. You can convert units to km/h by multiplying the result by 3.6: 27.8 * 3.6 ≈ 100 km/h .
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3 years ago
You ride on an elevator that is moving with constant upward acceleration while standing on a bathroom scale. the reading on the
Blababa [14]

The reading on the scale is greater than your actual weight.

4 0
3 years ago
An orange light (f = 5.2 * 10'4Hz) is
KonstantinChe [14]

Answer:

2.145×10^-10 V or 0.2145nV

Explanation:

From hf=eV

h= Plank's constant = 6.6×10^-34JS

f= frequency of the electromagnetic wave = 5.2×10^4 Hz

e= electronic charge= 1.6×10^-19 C

V= voltage

V= hf/e

V= 6.6×10^-34JS × 5.2×10^4 Hz/ 1.6×10^-19 C

V= 2.145×10^-10 V or 0.2145nV

Therefore the voltage created is 2.145×10^-10 V or 0.2145nV

7 0
2 years ago
I'm pretty sure it's density but I need another opinion.
bixtya [17]
I agree with density
6 0
3 years ago
Read 2 more answers
A car turns a certain curve of radius 24.98 m with constant linear speed of
Anastaziya [24]

Answer:

3525.19 kg

Explanation:

The computation of the mass of the car is shown below:

As we know that

Fc = m × V^2 ÷ R

m = Fc × R ÷ V^2

Provided that:

Fc = 34.652 kN = 34652 N

R = Radius = 24.98 m

V = speed = 15.67 m/s

So,

m = 34652 × 24.98 ÷ 15.67^2

 = 3525.19 kg

7 0
3 years ago
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