Given:
m = 70 kg, mass
F = 650 N, force
t = 0.8 s, time
Calculate the acceleration.
a = F/m = (650 N)/(70 kg)
= 9.2857 m/s²
Because the initial velocity is zero, the final velocity (after time 0.8 s) is
v = a*t = (9.2857 m/s²)*(0.8 s)
= 7.43 m/s
Answer: 7.43 m/s (nearest hundredth)
Answer:
14.0 cm
Explanation:
Draw a free body diagram of the block. There are three forces: weight force mg pulling down, elastic force k∆L pulling down, and buoyancy ρVg pushing up.
Sum of forces in the y direction:
∑F = ma
ρVg − mg − k∆L = 0
(1000 kg/m³) (4.63 kg / 648 kg/m³) (9.8 m/s²) − (4.63 kg) (9.8 m/s²) − (176 N/m) ∆L = 0
∆L = 0.140 m
∆L = 14.0 cm
Answer:
round object that orbits the Sun but lacks the ability to clear the neighborhood around is orbit.
Explanation:
It is true that a dwarf planet is a round object that orbits the Sun but lacks the ability to clear the neighborhood around its orbit.
Due to the size of a dwarf planet, it does not possess enough gravitational attraction or force to clear the orbit around it or other bodies.
One of the notable dwarf planets is Pluto. It was formerly thought to be planet but it has since been delisted.
Pluto's orbit lies beyond that of Neptune.
Answer:
I1 < I2
V1 > V2
Explanation:
Let the EMF of both the batteries is E and the internal resistance of both the cells is r.
The relation between the current and the EMF is given by
where, R be the resistance connected in the circuit.
the relation between the terminal potential difference and the EMF is given by
V = E - Ir
where, V is the terminal potential difference
If R1 is connected,
The current is given by
.... (1)
The terminal potential difference is given by
..... (2)
If R2 is connected,
The current is given by
.... (3)
The terminal potential difference is given by
..... (4)
As given in the question, R2 > R1
So, by the equation (1) and (3), we get
I1 < I2
and by the equation (2) and (4) ,we get
V1 > V2