Answer:
a) Calcule a frequência em RPM
= 0.6 RPM
b) a velocidade escalar do carro em m/s.
= 20m/s
Explanation:
a) Calcule a frequência em RPM
A fórmula para calcular a frequência é: 1/T
onde T= Tempo (seconds)
T = 100s
A frequência = 1/100s
A frequência = 0.01Hz
em RPM
A fórmula para calcular a frequência em RPM =
1 Hz = 60RPM
0.01Hz =
A frequência em RPM = 0.01Hz × 60
= 0.6 RPM
b) a velocidade escalar do carro em m/s.
A fórmula para calcular a velocidade escalar = diâmetro ou distância (m) ÷ tempo (s)
Diâmetro ou Distância = 2.0km
Converter 2.0km para m
1 km = 1000m
2km =
2 km × 1000m
= 2000m
A velocidade escalar = 2000m ÷ 100s
A velocidade escalar = 20m/s
Answer:
a) Frequency in RPM
= 0.6 RPM
b) Scalar Velocity
= 20m/s
Explanation:
a) Frequently in RPM
Formula : 1/T
Where T= Time (seconds)
T = 100s
= 1/100s
= 0.01Hz
Frequency in RPM =
1 Hz = 60RPM
0.01Hz = 0.01Hz × 60
= 0.6 RPM
b) Scalar velocity
The formula = Diameter or Distance ÷ Time
Diameter or Distance = 2.0km
Convert 2.0km to m
1 km = 1000m
2km =
2 km × 1000m
= 2000m
Scalar Velocity = 2000m ÷ 100s
Scalar Velocity = 20m/s
Given:
m = 1160 kg
g = 9,81 m/s²
v = 2.5 m/s
Unknown:
k spring constant
x spring compression
1. equation to use is Newton's 2nd law and Hook's law:
2. equation to use, the energy of the spring must equal the energy of the satellite:
Combinig the two equations:
Answer:
4.9 cm
Explanation:
From Hook's Law,
F = ke......................... Equation 1
Where F= force, e = extension, k = spring constant.
Note: the Force acting on the the spring is the weight of the mass.
W = mg.
F = mg.................... Equation 2
Where m = mass, g = acceleration due to gravity
Substitute equation 2 into equation 1
mg = ke
make e the subject of the equation
e = mg/k............... Equation 3.
Given: m = 2 kg, g = 9.8 m/s², k = 400 N/m
e = (2×9.8)/400
e = 19.6/400
e = 0.049 m
e = 4.9 cm
Answer:
Plasma
Explanation:
For a fusion reaction to take place, there must be conditions in which the particles have extreme thermal kinetic energies, in this way the collisions that cause the nuclear fusion are generated. Therefore, it is necessary to reach very high temperatures, in which the state of matter will necessarily be plasma.
